4.7 Review

Recent trends in graphene assisted vanadium based nanocomposites for supercapacitor applications

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Article Chemistry, Physical

Staggered nickel-vanadium layered double hydroxide nanosheets on reduced graphene oxide via in-situ growth for enhanced supercapacitor performance

Qingcheng Zhang et al.

Summary: In this study, a composite material (Ni4V1-LDH@rGO25%) was fabricated by in-situ growth of nickel-vanadium layered double hydroxide (NiV-LDH) nanosheets perpendicularly staggered on the surface of reduced graphene oxide (rGO). The composite material exhibited enhanced electrochemical performances in supercapacitors due to its conductive skeleton and ion transport channels. The volumetric performance of the composite material was attributed to its specific surface area, voidage, and improved ion and electron transport capabilities. The use of rGO as the growth substrate improved the conductivity of the composite material and facilitated charge transfer between the LDH and graphene, thereby enhancing the capacitor performance.

JOURNAL OF ALLOYS AND COMPOUNDS (2023)

Article Chemistry, Physical

Vanadium dioxide plates reduced graphene oxide as sulfur cathodes for efficient polysulfides trap in long-life lithium-sulfur batteries

Bing Chen et al.

Summary: Lithium-sulfur (Li-S) batteries face challenges due to the solubility of polysulfides and insulating properties of elemental sulfur. In this study, graphene decorated with vanadium dioxide (VO2) plates was utilized as a cathode matrix to address these challenges. The results showed that the synthesized VO2/rGO/S composites exhibited high discharge capacity and stable cycling performance. This research opens up new possibilities for the development of long-life batteries.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2023)

Article Physics, Condensed Matter

Fabrication of hybrid graphene nanosheets / Vanadium(V) oxide nanoparticles composite electrodes for supercapacitor application

Anwar I. Habeeb et al.

Summary: A hybrid supercapacitor with graphene sheets/vanadium(V) oxide nanoparticles composite electrodes has been developed successfully, showing excellent electrochemical performance. The graphene sheets were obtained through liquid phase exfoliation technique. The composite exhibited a fabulous architecture with porous sphere shapes and rough surfaces, and possessed high capacitance value, energy density, and power density.

SOLID STATE COMMUNICATIONS (2023)

Article Chemistry, Multidisciplinary

Fabrication of Flexible Poly(m-aminophenol)/Vanadium Pentoxide/Graphene Ternary Nanocomposite Film as a Positive Electrode for Solid-State Asymmetric Supercapacitors

S. K. Safdar Hossain et al.

Summary: In this study, poly(m-aminophenol) (PmAP) was used as a conductive supercapacitor binder to replace poly(vinylene difluoride) (PVDF). The advantages of using PmAP include its solubility in organic solvents, film-forming properties, and involvement in pseudocapacitive reactions. A ternary nanocomposite film consisting of vanadium pentoxide (V2O5), amino-functionalized graphene (amino-FG) and PmAP was fabricated and evaluated in different electrolytes, KCl and Li2SO4. The V2O5/amino-FG/PmAP nanocomposite showed improved pseudocapacitive performance and a 5-fold increase in specific capacitance compared to the V2O5/amino-FG/PVDF nanocomposite. Solid-state asymmetric supercapacitors (ASCs) using V2O5/amino-FG/PmAP film as the positive electrode exhibited high energy density in Li2SO4 electrolyte.

NANOMATERIALS (2023)

Article Chemistry, Physical

Free-standing vanadium oxide hydration/reduced graphene oxide film for ammonium ion supercapacitors

Yanzhi Fan et al.

Summary: In this study, a vanadium oxide hydration/reduced graphene oxide composite film was developed as a free-standing electrode for ammonium-ion storage. It exhibited good capacity and cycling performance. Furthermore, a quasi-solid-state symmetric supercapacitor was assembled to demonstrate its practical application in wearable devices.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2023)

Article Engineering, Environmental

3D printing quasi-solid-state micro-supercapacitors with ultrahigh areal energy density based on high concentration MXene sediment

Mengmeng Yuan et al.

Summary: This paper presents the preparation of quasi-solid-state symmetrical micro-supercapacitors (MSCs) using additive-free aqueous MXene Sedimented ink and direct 3D printing technology. The printed MSCs exhibit excellent charge storage capability and can maintain high capacitance under high-speed charging and discharging conditions.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Engineering, Environmental

Tailoring defective vanadium pentoxide/reduced graphene oxide electrodes for all-vanadium-oxide asymmetric supercapacitors

Ya Chen et al.

Summary: Vanadium pentoxide and reduced graphene oxide hybrid electrodes, prepared based on defect chemistry, show great potential for assembling all-vanadium-oxide asymmetric supercapacitors with excellent performance, high energy density, and cycling stability.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Physical

KW-GO, a graphene-like carbon extracted from kitchen waste (KW) advances the hydrogen production of V2O5

Xiaohan Zhao et al.

Summary: This paper investigates the use of graphene-like carbon extracted from kitchen waste to improve the photocatalytic activity and hydrogen production rate of V2O5. The addition of kitchen waste graphene-like carbon reduces the agglomeration of V2O5 and increases the specific surface area and visible light absorption range of the composite material, resulting in an enhanced hydrogen production rate. This innovative method may provide important theoretical guidance for photocatalytic hydrogen production.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2022)

Article Chemistry, Physical

A new potassium dual-ion hybrid supercapacitor based on battery-type Ni(OH)2 nanotube arrays and pseudocapacitor-type V2O5-anchored carbon nanotubes electrodes

Chenglong Shi et al.

Summary: Dual-ion hybrid supercapacitors exhibit high energy density, long cycle life, excellent capacity retention, and show potential applications in flexible wearable electronics.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Materials Science, Ceramics

Birth of the sol-gel method: early history

Sumio Sakka

Summary: The sol-gel method is a versatile technique for manufacturing a wide range of high-tech materials, from traditional optical glass to electronics, chemistry, and other fields, with broad application prospects.

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY (2022)

Article Chemistry, Multidisciplinary

Vanadium pentaoxide-doped waste plastic-derived graphene nanocomposite for supercapacitors: a comparative electrochemical study of low and high metal oxide doping

Nirvik Sahoo et al.

Summary: The researchers developed a modified pyrolysis method to synthesize graphene sheets using waste plastic as a precursor. They then loaded vanadium pentaoxide on the graphene sheets to create supercapacitor electrodes. The synthesis of graphene and the performance of the electrodes were confirmed through various characterization techniques and spectroscopic and electrochemical tests.

RSC ADVANCES (2022)

Article Chemistry, Applied

Improved photocatalytic activity of SnO2-TiO2 nanocomposite thin films prepared by low-temperature sol-gel method

Ksenija Maver et al.

Summary: The objective of this research was to investigate the improvement of photocatalytic activity in pure TiO2 through SnO2 modification. The study found that when TiO2 was modified with SnO2 in a concentration range of 0.1-1 mol.%, the photocatalytic activity was enhanced by 30%. However, at higher SnO2 loadings, the activity decreased. Various characterization techniques were used to explain the mechanisms behind the improved and hindered performance of the SnO2-modified TiO2 photocatalysts.

CATALYSIS TODAY (2022)

Article Chemistry, Applied

Graphene aerogel with excellent property prepared by doping activated carbon and CNF for free-binder supercapacitor

Zhou Liao et al.

Summary: In this study, a composite aerogel was formed using two-step activated Eucommia wood tar-based activated carbon, cellulose nanofibers, and reduced graphene oxide. The composite aerogel exhibited excellent electrochemical performance for potential applications in supercapacitors.

CARBOHYDRATE POLYMERS (2022)

Article Chemistry, Physical

Aluminum-ion intercalation and reduced graphene oxide wrapping enable the electrochemical properties of hydrated V2O5 for Zn-ion storage

Ziyi Feng et al.

Summary: Aqueous zinc-ion batteries (AZIBs) are considered as promising energy storage equipment with high capacity, wide source, and high safety. In order to improve the Zn ion storage properties, researchers synthesized aluminum-ion intercalated hydrated V2O5/reduced graphene oxide (AlVOH/rGO) composite, which exhibits good cycle stability and rate performance.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2022)

Article Chemistry, Physical

Novel electrodes for supercapacitor: Conducting polymers, metal oxides, chalcogenides, carbides, nitrides, MXenes, and their composites with graphene

Navajsharif S. Shaikh et al.

Summary: High energy density supercapacitors are needed for recent electronic appliances and hybrid vehicles, which can be achieved by designing proper electrode materials and electrolytes. This review discusses different energy storage mechanisms, engineering of electrode materials, and investigation of hybrid electrodes, showing great potential for commercial usage.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

Article Chemistry, Physical

Boosting zinc ion storage performance of sandwich-like V2O5/graphene composite by effectively inhibiting vanadium dissolution

Tongyu Liu et al.

Summary: In this study, sandwich-like V2O5/graphene composites were fabricated by controlling the graphene content. The addition of graphene not only enhanced the electrochemical stability and cycling life of the electrode, but also improved the charge transfer performance and suppressed vanadium dissolution.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Energy & Fuels

Facile hydrothermal synthesis of Au-Mn3O4 decorated graphene oxide nanocomposites for solid-state supercapacitor

Siddheswar Rudra et al.

Summary: Nanocomposites of Au-Mn3O4 flowers decorated on graphene oxide were successfully developed using a hydrothermal technique, improving the efficiency and electrochemical behavior of transition metal oxide-based energy materials. The optimized nanocomposite exhibited high specific capacitance and excellent energy density, while also maintaining good cycle stability in an acidic electrolyte.

JOURNAL OF ENERGY STORAGE (2022)

Review Energy & Fuels

Flexible all-solid-state supercapacitors with high capacitance, long cycle life, and wide operational potential window: Recent progress and future perspectives

Mehdi Shahedi Asl et al.

Summary: Flexible solid-state supercapacitors have the potential to revolutionize the field of wearable electronics due to their high energy density and flexibility. However, there are still challenges to overcome in terms of production, cost, and industry standards.

JOURNAL OF ENERGY STORAGE (2022)

Article Energy & Fuels

A bifunctional asymmetric electrochromic supercapacitor with multicolor property based on nickel oxide/vanadium oxide/reduced graphene oxide

Dharshini Mohanadas et al.

Summary: A ternary nickel oxide/vanadium oxide/reduced graphene oxide electrode was developed, demonstrating outstanding specific capacitance and excellent cycling stability. The device also allowed for visual detection of energy storage through color changes. Therefore, it shows promising potential for future applications.

JOURNAL OF ENERGY STORAGE (2022)

Article Chemistry, Inorganic & Nuclear

Moringa Oleifera leaf extract mediated synthesis of reduced graphene oxide-vanadium pentoxide nanocomposite for enhanced specific capacitance in supercapacitors

T. N. Vinuth Raj et al.

Summary: Moringa Oleifera leaf extract was used as a reducing agent to prepare a environmentally-friendly RGO/V2O5 nanocomposite. The morphology and structure of the synthesized materials were evaluated using analytical, spectroscopic, and electrochemical characterizations. The electrochemical performances of RGO, V2O5, and RGO/V2O5 nanocomposite were studied for super capacitor applications. The RGO/V2O5 nanocomposite showed enhanced specific capacitance compared to V2O5 and RGO alone.

INORGANIC CHEMISTRY COMMUNICATIONS (2022)

Article Chemistry, Physical

All-Solid-State Supercapacitor Based on Advanced 2D Vanadium Disulfide/Black Phosphorus Hybrids for Wearable Electronics

Aditya Sharma et al.

Summary: Vanadium disulfide-black phosphorus (VS2-BP) hybrids were synthesized via hydrothermal-assisted method to enhance their electrochemical activity for supercapacitor applications. The concentration of BP was optimized to prevent restacking of VS2 and increase active edges for electrolytic ion intercalation. With a PVA/K2SO4 gel electrolyte, an all-solid-state (ASS) VS2-BP-50 symmetric device was developed on highly conductive carbon paper, exhibiting superior performance than previous literature. Density functional theory (DFT) suggested that charge accumulation between VS2 and BP monolayers, as well as charge transfer, contribute to improved density of states in VS2-BP hybrid.

ACS APPLIED ENERGY MATERIALS (2022)

Article Chemistry, Physical

Flexible reduced graphene oxide/V2O5 composite battery-type cathode and MXene capacitor-type anode for aqueous zinc ion hybrid supercapacitors with high energy density

Yi Wang et al.

Summary: A new configuration flexible zinc-ion hybrid supercapacitor based on composite films of RGO-V2O5 cathode and RGO-MXene anode in aqueous electrolyte shows excellent electrochemical performance, providing an essential strategy for synthesizing composite films for high performance flexible hybrid supercapacitors.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

Article Engineering, Environmental

A high performance vanadium oxide@molybdenophosphate composite for 2.2 V aqueous symmetric supercapacitors

Zi-Hang Huang et al.

Summary: This study developed a vanadium oxide@molybdenophosphate composite with a wide potential range and highly enhanced electron/ion transport kinetics. The oxygen-functionalized carbon substrate facilitates fast electron transport and suppresses structural pulverization. The molybdenophosphate coating improves electronic structure and charge storage performance. The composite exhibits outstanding capacitance and energy density, making it suitable for supercapacitors and standby power supplies.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Chemistry, Physical

Sandwich-Like Sulfur-Doped V2O5/Reduced graphene Oxide/Sulfur-Doped V2O5 Core-shell structure boosts Zinc-Ion storage

Xiaofei Wang et al.

Summary: The novel sandwich-like composite S-V2O5/rGO exhibits improved electrochemical properties for Zn2+ storage due to its enhanced electrical conductivity and facilitated ion and electron migration, leading to fast redox reaction kinetics. This structure combination with sulfur dopant provides a novel strategy for designing V-based architectures for aqueous multivalent ions batteries, demonstrating high capacity, stable cycle performance, and excellent rate stability.

APPLIED SURFACE SCIENCE (2021)

Article Materials Science, Ceramics

Graphene oxide-coated V2O5 microspheres for lithium-sulfur batteries

Jian Wei et al.

Summary: A strategy to prepare a double-shelled structure S@V2O5 spheres @GO composite is proposed in this study, which can improve the rate capability and cycling performance of lithium-sulfur batteries, offering a potential candidate for practical application in the future.

CERAMICS INTERNATIONAL (2021)

Article Materials Science, Ceramics

One dimensional MnV2O6 nanobelts on graphene as outstanding electrode material for high energy density symmetric supercapacitor

Wei Hau Low et al.

Summary: The bimetallic oxide/graphene nanocomposite is considered a promising electrode material for supercapacitors due to its admirable electrochemical activity and excellent electrical conductivity. By utilizing a unique approach to exploit the graphene/MnV2O6 nanomaterial, a high specific capacitance, high columbic efficiency, and high energy density were achieved, demonstrating the potential of this nanocomposite as a high performance supercapacitor electrode.

CERAMICS INTERNATIONAL (2021)

Article Engineering, Environmental

VO x /VS x @Graphene nanocomposites for electrochemical energy storage

Ruini Zhou et al.

Summary: This paper reviews the effective synthetic methods for preparing VOx@Graphene and VSx@Graphene nanocomposites, and discusses their high, practical, and economic value in applications for batteries and supercapacitors through analyzing electrochemical characterization images.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Physical

High-performance hierarchical MnO2/CNT electrode for multifunctional supercapacitors

Yang Zhou et al.

Summary: The study synthesized nanocomposite electrodes with high capacitance and mechanical properties by loading MnO2 on carbon nanotube (CNT) mats. Flexible and mechanically strong structural supercapacitors were fabricated using these electrodes, demonstrating excellent energy storage capability and structural stiffness and strength.

CARBON (2021)

Article Chemistry, Physical

Scalable fabrication of vanadium carbide/graphene electrodes for high-energy and flexible microsupercapacitors

Hucheng Li et al.

Summary: In this study, vanadium carbide/reduced graphene oxide (V8C7/rGO) microsupercapacitors (MSCs) were successfully fabricated via laser scribing on ammonium meta-vanadate/graphene oxide (NH4VO3/GO) films, showing excellent electrochemical performance and scalable manufacturing potential.

CARBON (2021)

Article Materials Science, Ceramics

Syntheses and characterization of RuxV1-xO2 (0≤x≤0.05)/grapphenne nanocomposites for flexible suppercapacitors and energy storage devices

Waleed E. Mahmoud

Summary: In this study, RuxV1-xO2/graphene hybrid nanocomposites were successfully synthesized using a one-step laser scribe approach, showing promising electrochemical properties for supercapacitors and energy storage devices. The hybrid electrode exhibited excellent capacitance retention at high current densities, indicating a great potential for practical applications in energy storage devices.

CERAMICS INTERNATIONAL (2021)

Article Engineering, Environmental

Symmetric supercapacitors composed of ternary metal oxides (NiO/V2O5/MnO2) nanoribbon electrodes with high energy storage performance

Jing Wang et al.

Summary: Advanced supercapacitors with improved specific capacitance, long cycling life, high power density, and energy density are fabricated using ternary metal oxides nano-ribbon electrodes. The nano-grafting results in reactive interfaces with interpenetrating channels for efficient ion transport and electron conduction, significantly enhancing the supercapacitive performances.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Electrochemistry

Supercapacitor properties of V10O14(OH)2 and reduced graphene oxide hybrids: Experimental and theoretical insights

Swagatika Kamila et al.

Summary: In this study, V10O14(OH)(2) nanostructure and its hybrid with reduced graphene oxide were successfully synthesized and their supercapacitance properties were explored. The capacitance of the hybrid material was found to be significantly higher than that of the V10O14(OH)(2) material, and the enhanced charge storage performance was attributed to improved electronic states and quantum capacitance in the integrated structure. The study also revealed that enhanced ion mobility in the hybrid structure led to better charge transfer kinetics.

ELECTROCHIMICA ACTA (2021)

Article Energy & Fuels

Graphene Modified Vanadium Oxide Composite Materials Used in Aqueous Na-Ion Batteries

Najeeb Ur Rehman Lashari et al.

Summary: In this study, vanadium pentoxide modified with graphene was used as an anode material in an aqueous rechargeable sodium-ion battery, showing improved battery performance with higher charge-discharge capacity and cyclic capacity retention. V2O5@G exhibited larger sodium storage capacity, enhanced rate capability, increased Na+ diffusivity, and reduced electrochemical reaction resistance, indicating its potential as a promising electrode material for ARSBs.

ENERGY & FUELS (2021)

Review Environmental Sciences

Applications of water-stable metal-organic frameworks in the removal of water pollutants: A review

Shu Zhang et al.

Summary: This article comprehensively reviews the promising potential and application prospect of metal-organic frameworks (MOFs) as excellent nanomaterials for removing contaminants from the water environment. The characteristics, preparation methods, removal properties, and mechanisms of several typical water-stable MOFs are discussed, providing pathways for the effective use of water-stable MOFs in materials design and environmental remediation.

ENVIRONMENTAL POLLUTION (2021)

Article Chemistry, Physical

Ultralight porous poly (vinylidene fluoride)-graphene nanocomposites with compressive sensing properties

Seyed Mohsen Seraji et al.

Summary: This study demonstrates the crystalline transformation of PVDF influences aerogel formation and compressible sensing properties of a graphene composite. The fabricated PVDF/graphene foams and aerogels show high sensitivity and improved compressive strength. The results provide new pathways for fabricating porous composites with lighter density and high mechanical and electrical properties.

NANO RESEARCH (2021)

Article Chemistry, Inorganic & Nuclear

Microwave-Assisted hybridised WO3/V2O5 rod shape nanocomposites for electrochemical supercapacitor applications

K. Latha et al.

Summary: The report prepared rod shape WO3/V2O5 nanocomposite using microwave-assisted method, showing significant enhancement in specific capacitance with the addition of WO3. Long cyclic test demonstrated excellent cyclic stability of the nanostructured composite material.

INORGANIC CHEMISTRY COMMUNICATIONS (2021)

Article Chemistry, Physical

Edge-rich vertical graphene nanosheets templating V2O5 for highly durable zinc ion battery

Xiang Zhang et al.

Summary: ZIBs with edge-rich cathodes templated by VG nanosheets and V2O5 nanosheets show high performance with long cycle life and high energy density. The matching structure between VG and V2O5 facilitates fast electron transfer channels and large surface area, resulting in efficient battery performance.

CARBON (2021)

Article Engineering, Environmental

3D layered nanostructure of vanadium nitrides quantum Dots@Graphene anode materials via In-Situ redox reaction strategy

Yuanyou Peng et al.

Summary: In this study, vanadium nitride quantum dots with sizes of 1 to 3 nm were combined with graphene layers using a novel method of in-situ redox reaction and heat treatment to fabricate a new graphene anode material. The anchored vanadium quantum dots expanded the interlamellar spacing of graphene, increasing the dispersion of single-layer graphene and providing more channels for the movement of electrolyte, as well as more electrochemical active sites for ion absorption. This new anode material exhibited a high capacity of 272.9F g(-1) at 0.5 A g(-1) with good cycling stability of 84% over 10,000 cycles.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Chemistry, Physical

Synthesis and electrochemical properties of V2O5•nH2O compound with reduced graphene oxide/polyvinyl alcohol film as the free-standing cathode for coin-typed aqueous Zn-ion batteries

Jingjing Sun et al.

Summary: The V(2)O(5)(center dot)nH(2)O/rGO-PVA film synthesised by one-step hydrothermal method and vacuum filtration exhibits ultrahigh capacity and good cycle stability as the cathode for coin-typed AZIBs, leading to high energy density.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

Article Engineering, Electrical & Electronic

Clinker-like V2O5 nanostructures anchored on 3D Ni-foam for supercapacitor application

Meenal D. Patil et al.

Summary: This study prepared V2O5 powder using a simple, scalable, and cost-effective synthesis approach and investigated its physicochemical and electrochemical properties. The V2O5-Ni foam electrode exhibited pseudocapacitive behavior, with the V1-NF electrode showing the highest specific capacitance in 1 M KOH aqueous electrolyte.

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING (2021)

Article Chemistry, Physical

Reduced graphene oxide decorated SnO2/BiVO4 photoanode for photoelectrochemical water splitting

Shouli Bai et al.

Summary: A ternary photoanode of SnO2/BiVO4/rGO was fabricated and it showed significantly improved photocurrent density and IPCE compared to a BiVO4 photoanode, mainly due to the formation of n-n heterojunctions and decoration of rGO which enhanced the absorption of light and electron transfer efficiency.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

Article Chemistry, Multidisciplinary

Solvothermal Synthesis Combined with Design of Experiments-Optimization Approach for Magnetite Nanocrystal Clusters

Joelle Medinger et al.

Summary: Using response surface methodology (RSM) to optimize experimental factors helps in synthesizing magnetite nanocrystal clusters with desired size and size distribution. The experimental design allows for simultaneous variation of factors' levels, improving the efficiency of the optimization process.

NANOMATERIALS (2021)

Article Biotechnology & Applied Microbiology

A new 3D composite of V2O5-based biodegradable ceramic material prepared by an environmentally friendly thermal method for supercapacitor applications

Radhakrishnan Venkatkarthick et al.

Summary: A novel V2O5 composite (V2O5@V2AlC) grown on a biodegradable ceramic material was prepared, demonstrating improved structural stability and electrochemical performance. The composite exhibited enhanced capacitance properties and extended cyclic life, particularly in neutral electrolytic media.

ENVIRONMENTAL TECHNOLOGY & INNOVATION (2021)

Article Chemistry, Physical

Achieving highly reversible and fast sodium storage of Na4VMn(PO4)3/C-rGO composite with low-fraction rGO via spray-drying technique

Guijia Cui et al.

Summary: In this study, an ultrahigh rate capable and long cycle life NVMP/C-rGO composite was successfully prepared using spray-drying technique, showing excellent electron conductivity as a cathode in sodium ion batteries. This composite material delivered high reversible capacities at different rates, with outstanding capacity retention over 500 cycles.

NANO ENERGY (2021)

Article Environmental Sciences

Vanadium selenide decorated reduced graphene oxide nanocomposite: A co-active catalyst for the detection of 2,4,6-Trichlorophenol

Kuo-Yuan Hwa et al.

Summary: In this study, a two-dimensional hybrid nanocomposite of Vanadium selenide (V2Se9) and reduced graphene oxide (rGO) was successfully synthesized via a simple hydrothermal method, exhibiting excellent conductivity and catalytic activity for the detection of 2,4,6-trichlorophenol. Comprehensive structural characterization confirmed high charge transfer ratio, surface area, and catalytic performance, highlighting the potential for electrochemical sensor applications.

CHEMOSPHERE (2021)

Article Chemistry, Physical

Facile synthesis of V2O5/graphene composites as advanced electrode materials in supercapacitors

Min Fu et al.

Summary: Hybrid electrode materials of vanadium pentoxide (V2O5) grown on graphene by a microwave synthetic method exhibit excellent electrochemical performances in supercapacitors, with specific capacitances, capacitance retention, energy density, and power density surpassing many similar devices. This study also investigates the capacitive performances of V2O5/graphene composites with different component ratios and discusses the charge storage mechanism comprehensively.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

Article Chemistry, Physical

Hydrated vanadium pentoxide/reduced graphene oxide-polyvinyl alcohol (V2O5•nH2O/rGO-PVA) film as a binder-free electrode for solid-state Zn-ion batteries

Jingjing Sun et al.

Summary: A hydrated vanadium pentoxide/reduced graphene oxide-polyvinyl alcohol film was synthesized as a binder-free cathode for solid-state aqueous ZIBs, with excellent electrochemical capacity and great potential for future applications.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

Article Engineering, Environmental

Rational design and preparation of copper vanadate anchored on sulfur doped reduced graphene oxide nanocomposite for electrochemical sensing of antiandrogen drug nilutamide using flexible electrodes

Tata Sanjay Kanna Sharma et al.

Summary: Copper vanadate nanoparticles were synthesized using a hydrothermal method and combined with sulfur-doped reduced graphene oxide to form a hybrid nanocomposite, which showed excellent activity in detecting the antiandrogen drug nilutamide. The nanocomposite exhibited a low detection limit and high sensitivity for NLT detection, making it a promising material for electrochemical sensing applications.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Energy & Fuels

Analytical expressions for electrochemical supercapacitor with potential dependent capacitance

A. P. R. Fernandez et al.

Summary: The capacitance of electrochemical supercapacitors depends on the applied potential, requiring a simplified equivalent circuit for deriving related expressions. The theoretical development shows very good agreement with experimental cyclic voltammetry data.

JOURNAL OF ENERGY STORAGE (2021)

Article Materials Science, Multidisciplinary

Surface-oxidation-mediated construction of Ppy@VNO/NG core-shell host targeting highly capacitive and durable negative electrode for supercapacitors

Wei Sun et al.

Summary: A novel interface engineering strategy was developed to enhance the stability of VN in aqueous electrolytes by introducing surface nanolayers of vanadium oxides on the VN surface, leading to the fabrication of a durable Ppy@VNO/NG hybrid aerogel with high specific capacitance and excellent cyclic stability for supercapacitors.

SCIENCE CHINA-MATERIALS (2021)

Article Materials Science, Ceramics

2D V2O5 nanoflakes as a binder-free electrode material for high-performance pseudocapacitor

Muhammad Sufyan Javed et al.

Summary: The VO@Ti electrode shows impressive capacitance and long-term reliability due to highly exposed active sites and improved electrical conductivity.

CERAMICS INTERNATIONAL (2021)

Article Electrochemistry

Achieving wide potential window and high capacitance for supercapacitors using different metal oxides (viz.: ZrO2, WO3 and V2O5) and their PANI/graphene composites with Na2SO4 electrolyte

Prasenjit Haldar

Summary: Tuning the morphology of metal oxides is a common strategy to tailor their electrochemical response. Coating metal oxides with polyaniline and/or graphene can enhance electronic conductivity and charge collection. The study demonstrates that metal oxide/PANI/Graphene composites exhibit higher capacitance values and extended operating potential windows for practical applications.

ELECTROCHIMICA ACTA (2021)

Article Chemistry, Physical

A promising negative electrode of asymmetric supercapacitor fabricated by incorporating copper-based metal-organic framework and reduced graphene oxide

Dharshini Mohanadas et al.

Summary: The development of a hybrid negative electrode by combining Cu-MOF and rGO resulted in the highest specific capacitance and specific energy in an asymmetric supercapacitor device, showcasing superior cycling stability over 4000 cycles.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2021)

Article Chemistry, Physical

Industrial VN@reduced graphene oxide cathode for aqueous zinc ion batteries with high rate capability and long cycle stability

Hongzhe Chen et al.

Summary: By modifying the electrode with graphene oxide, the study showed improved cycle stability and performance of the battery. Additionally, graphene oxide was found to accelerate redox reactions and enhance pseudocapacitive properties of the electrode, resulting in improved electron transport rate.

JOURNAL OF POWER SOURCES (2021)

Article Chemistry, Physical

Recent progress in nanostructured electrodes for solid oxide fuel cells deposited by spray pyrolysis

Lucia dos Santos-Gomez et al.

Summary: The passage discusses the research progress on low-temperature solid oxide fuel cells (LT-SOFCs), emphasizing the potential of nanostructured electrodes to improve efficiency and the spray pyrolysis deposition as an effective electrode preparation technique. Recent advances focus on different microstructural strategies to enhance electrode performance, and also address the current challenges and future directions for further improving the properties of new nanostructured electrodes.

JOURNAL OF POWER SOURCES (2021)

Article Chemistry, Analytical

Selective ammonia sensing response of vanadium doped cerium oxide nanorods wrapped reduced graphene oxide electrodes at room temperature

M. Amarnath et al.

Summary: A novel ammonia gas sensing electrode material with excellent selectivity and stability was reported, showing a high sensitivity of 85% towards NH3 at 50 ppm concentration, with a response time of 104 seconds and a recovery time of 47 seconds. The material achieved efficient detection of ammonia gas through the assembly of nanorods on its surface, providing high electrical conductivity. This composite material demonstrated outstanding stability at room temperature, maintaining 99% of its initial sensitivity after 50 days.

SENSORS AND ACTUATORS B-CHEMICAL (2021)

Article Chemistry, Physical

Facile Fabrication of Multivalent VOx/Graphene Nanocomposite Electrodes for High-Energy-Density Symmetric Supercapacitors

Ailun Huang et al.

Summary: By incorporating vanadium oxides with multiple oxidation states onto highly conductive graphene scaffolds, a rational design of graphene/VOx electrodes with high specific capacitance and large potential window has been achieved. The aqueous graphene/VOx symmetric supercapacitors exhibit a high energy density of up to 54 Wh kg(-1) with virtually no capacitance loss after 20,000 cycles.

ADVANCED ENERGY MATERIALS (2021)

Article Chemistry, Physical

FeVO4•nH2O@rGO nanocomposite as high performance cathode materials for aqueous Zn-ion batteries

Binxu Lan et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2020)

Review Materials Science, Multidisciplinary

Metal/metal oxide decorated graphene synthesis and application as supercapacitor: a review

Debabrata Nandi et al.

JOURNAL OF MATERIALS SCIENCE (2020)

Review Engineering, Electrical & Electronic

Metal oxides nanoparticles via sol-gel method: a review on synthesis, characterization and applications

Mritunjaya Parashar et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2020)

Review Materials Science, Ceramics

Understanding sol-gel transition through a picture. A short tutorial

Plinio Innocenzi

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JOURNAL OF COLLOID AND INTERFACE SCIENCE (2020)

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JOURNAL OF ELECTROANALYTICAL CHEMISTRY (2020)

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CERAMICS INTERNATIONAL (2020)

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2D MATERIALS (2020)

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MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING (2020)

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NANOSCALE (2020)

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RSC ADVANCES (2020)

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Effect of surfactants on the performance of 3D morphology W18O49 by solvothermal synthesis

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APPLIED SURFACE SCIENCE (2019)

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CERAMICS INTERNATIONAL (2019)

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CHEMICAL ENGINEERING JOURNAL (2019)

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CHEMICAL ENGINEERING JOURNAL (2019)

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SCIENTIFIC REPORTS (2019)

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Preparation and capacitance of V2O5/holey graphene hybrid aerogel electrode with high performance

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JOURNAL OF ALLOYS AND COMPOUNDS (2019)

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MATERIALS LETTERS (2019)

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ACS APPLIED MATERIALS & INTERFACES (2019)

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JOURNAL OF COLLOID AND INTERFACE SCIENCE (2019)

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Interface Engineering V2O5 Nanofibers for High-Energy and Durable Supercapacitors

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COMPOSITES PART B-ENGINEERING (2019)

Article Chemistry, Physical

Combined Experimental and Theoretical Insights into Energy Storage Applications of a VO2(D)-Graphene Hybrid

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JOURNAL OF PHYSICAL CHEMISTRY C (2019)

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Role of oxygen vacancies in vanadium oxide and oxygen functional groups in graphene oxide for room temperature CO2 gas sensors

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SENSORS AND ACTUATORS A-PHYSICAL (2019)

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MATERIALS & DESIGN (2019)

Review Green & Sustainable Science & Technology

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ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY (2019)

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CHEMICAL ENGINEERING JOURNAL (2019)

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NANO MATERIALS SCIENCE (2019)

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NANOSCALE (2019)

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MATERIALS TODAY-PROCEEDINGS (2019)

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SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS (2019)

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ELECTROCHIMICA ACTA (2018)

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JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2018)

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Facile synthesis of graphene-AgVO3 nanocomposite with excellent supercapacitor performance

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MATERIALS CHEMISTRY AND PHYSICS (2018)

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MATERIALS CHEMISTRY AND PHYSICS (2018)

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MICROPOROUS AND MESOPOROUS MATERIALS (2018)

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SYNTHETIC METALS (2018)

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JOURNAL OF APPLIED CRYSTALLOGRAPHY (2018)

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CERAMICS INTERNATIONAL (2018)

Review Energy & Fuels

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INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2018)

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JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY (2018)

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MICROSCOPY AND MICROANALYSIS (2018)

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RSC ADVANCES (2018)

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NANO ENERGY (2018)

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INORGANIC CHEMISTRY FRONTIERS (2018)

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ACS APPLIED ENERGY MATERIALS (2018)

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A high-rate aqueous rechargeable zinc ion battery based on the VS4@rGO nanocomposite

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JOURNAL OF MATERIALS CHEMISTRY A (2018)

Article Electrochemistry

In Situ Constructing Flexible V2O5@GO Composite Thin Film Electrode for Superior Electrochemical Energy Storage

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JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2018)

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JOURNAL OF COLLOID AND INTERFACE SCIENCE (2017)

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Facile Solvothermal Synthesis of CeO2-CuO Nanocomposite Photocatalyst Using Novel Precursors with Enhanced Photocatalytic Performance in Dye Degradation

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JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS (2017)

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Effect of processing parameters on textural and bioactive properties of sol-gel-derived borate glasses

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JOURNAL OF MATERIALS SCIENCE (2017)

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All solid-state V2O5-based flexible hybrid fiber supercapacitors

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JOURNAL OF POWER SOURCES (2017)

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MATERIALS RESEARCH BULLETIN (2017)

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Synthesis, characterization and bioactivity of a calcium-phosphate glass-ceramics obtained by the sol-gel processing method

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MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS (2017)

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Self-assembly of glucose oxidase on reduced graphene oxide-magnetic nanoparticles nanocomposite-based direct electrochemistry for reagentless glucose biosensor

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MATERIALS SCIENCE AND ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS (2017)

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NATURE CHEMISTRY (2017)

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NEW JOURNAL OF CHEMISTRY (2017)

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Deep eutectic-solvothermal synthesis of nanostructured ceria

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NATURE COMMUNICATIONS (2017)

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JOURNAL OF MATERIALS CHEMISTRY A (2017)

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Advances in Subcritical Hydro-/Solvothermal Processing of Graphene Materials

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ADVANCED MATERIALS (2017)

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ELECTROCHIMICA ACTA (2017)