NiO@CoSe2 nanostructures for high-performance asymmetric supercapacitors and efficient electrocatalysts

Article Materials Science, Multidisciplinary

High-performance flexible hybrid capacitors by regulating NiCoMoS@Mo0.75-LDH electrode structure

Yuchen Sun et al.

Summary: In supercapacitors, the synthesis of MoO42--intercalated LDH heterostructures can enhance the specific capacitance and energy density, potentially enabling their application in future energy storage devices.

MATERIALS RESEARCH BULLETIN (2023)

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Article Chemistry, Multidisciplinary

Flexible CuCo2O4 @Ni-Co-S hybrids as electrode materials for high-performance energy storage devices

Xiaowei Wang et al.

Summary: Rational design of electrode materials with core-shell nanostructures is important for improving the electrochemical performance of supercapacitors. In this study, several CuCo2O4 @Ni-Co-S composite electrodes were prepared, which showed high electrochemical activity as a result of their three-dimensional structure. The heterostructured materials exhibited a specific capacitance of 1048 C/g at 1 A/g, and maintained 75.6% of their initial capacity after 2000 cycles at 10 A/g. With a power density of 2280 W/kg, the device achieved an energy density of 79.2 Wh/kg.

CHINESE CHEMICAL LETTERS (2023)

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Article Electrochemistry

Surface Selenization of NiCo-Layered Double Hydroxide Nanosheets for High-Performance Supercapacitors

Mengdi Wang et al.

Summary: Layered double hydroxides (LDHs) have potential as electrode materials for supercapacitors due to their unique spatial structures. In this study, several NiCo-LDH materials are obtained through a simple selenization process, improving conductivity and reducing electrochemical impedance. The 0.4Se-NiCo-LDH materials exhibit a specific capacitance of 1396 F/g at 1 A/g and a capacity retention rate of 91.38% after 10,000 cycles. Furthermore, when used as a positive electrode, an asymmetric supercapacitor achieves an energy density of 60 Wh/kg at a power density of 2700 W/kg, showing promising applications for future flexible energy-storage systems.

BATTERIES-BASEL (2023)

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Review Chemistry, Multidisciplinary

Atomic-Scale Structure Dynamics of Nanocrystals Revealed By In Situ and Environmental Transmission Electron Microscopy

Haofei Zhao et al.

Summary: Nanocrystals play a crucial role in material sciences and industry. Designing nanocrystals with desired structures and properties is a major challenge that requires a deep understanding of atomic-scale dynamics. In situ transmission electron microscopy (TEM), especially environmental TEM, has provided valuable insights into nanocrystals. This comprehensive review highlights the progress in the understanding of nanocrystal dynamics, including nucleation and growth, structure evolution, and dynamics in reaction conditions.

ADVANCED MATERIALS (2023)

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Article Chemistry, Multidisciplinary

Constructing High Efficiency CoZnxMn2-xO4 Electrocatalyst by Regulating the Electronic Structure and Surface Reconstruction

Depeng Zhao et al.

Summary: Several vacancy-dependent CoZnxMn2-xO4 catalysts were prepared by tailoring the concentration of Zn ions. The superior electrocatalytic performance can be attributed to the formations of active species and oxygen vacancies. These catalysts exhibit comparable performance to noble metal catalysts IrO2 and Pt/C.

SMALL (2022)

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Article Chemistry, Physical

Interfacial electronic structure modulation of Pt-MoS2 heterostructure for enhancing electrocatalytic hydrogen evolution reaction

Aixian Shan et al.

Summary: This study synthesizes Pt nanoparticles decorated on MoS2 nanosheets and demonstrates their enhanced electrocatalytic activity and stability through electronic structure modulation, resulting in lower overpotential and smaller Tafel slope.

NANO ENERGY (2022)

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Article Chemistry, Physical

Bifunctional Fe-doped CoP@Ni2P heteroarchitectures for high-efficient water electrocatalysis

Zhongxin Duan et al.

Summary: This study reports a novel biphosphide catalyst with improved hydrogen adsorption energy by constructing heterogeneous structures and cation doping. The obtained catalyst exhibits outstanding hydrogen evolution reaction performance at all pH range and shows low overpotential as an oxygen evolution reaction catalyst in alkaline solution. Additionally, it demonstrates low voltage and long durability for water electrolysis.

NANO RESEARCH (2022)

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Article Chemistry, Multidisciplinary

Design of pH-universal NiCoP nanowire electrocatalysts with tunable charge distribution

Depeng Zhao et al.

Summary: Developing highly active and stable electrocatalysts for industrial overall water splitting is desirable. Tailoring the d-band center is considered an effective strategy to enhance electrocatalytic activity. In this study, heterogeneous Cr-doped NiCoP electrocatalysts were reported, which exhibited excellent hydrogen and oxygen evolution performance, demonstrating superior water splitting capability.

MATERIALS TODAY CHEMISTRY (2022)

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Article Chemistry, Physical

In-situ formation of MOFs derivatives CoSe2/Ni3Se4 nanosheets on MXene nanosheets for hybrid supercapacitor with enhanced electrochemical performance

Yuan Yang et al.

Summary: Metal-organic frameworks (MOFs) have potential as electrode materials for supercapacitors, but their conductivity and agglomeration issues hinder their electrochemical performance. This study successfully addresses these challenges by vertically anchoring CoSe2/Ni3Se4 nanosheets derived from ZIF-67 onto MXene nanosheets. The MXene substrate reduces agglomeration and enhances conductivity, while the close combination between CoSe2/Ni3Se4 nanosheets and MXene nanosheets promotes faster charge transfer and improves the durability of the structure. The resulting honeycomb-like MXene@CoSe2/Ni3Se4 electrode material demonstrates high specific capacitance and outstanding capacitance retention rate, making it a promising candidate for supercapacitor applications.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Biochemistry & Molecular Biology

Tailoring Electrochemical Performance of Co3O4 Electrode Materials by Mn Doping

Xingyu Liu et al.

Summary: In this study, 0.3Mn-Co3O4 nanostructures were successfully synthesized and exhibited improved performance, making them a promising candidate for supercapacitor applications.

MOLECULES (2022)

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Article Chemistry, Multidisciplinary

High-efficiency NiCo layered double hydroxide electrocatalyst

Mengdi Wang et al.

Summary: In this study, the electrical conductivity of LDH materials was improved by coating them with PEDOT, leading to enhanced performance in water electrolysis. The prepared NiCo-LDH@PEDOT-200 composite exhibited excellent electrocatalytic activity and stability in alkaline electrolyte, making it a promising catalyst for efficient water splitting.

NEW JOURNAL OF CHEMISTRY (2022)

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Article Chemistry, Physical

In-situ formation of MOFs derivatives CoSe2/Ni3Se4 nanosheets on MXene nanosheets for hybrid supercapacitor with enhanced electrochemical performance

Yuan Yang et al.

Summary: The novel design strategy proposed in this work provides a new method for developing high-performance two-dimensional nanostructured electrode materials.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

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Article Chemistry, Multidisciplinary

Self-Assembled Two-Dimensional NiO/CeO2 Heterostructure Rich in Oxygen Vacancies as Efficient Bifunctional Electrocatalyst for Alkaline Hydrogen Evolution and Oxygen Evolution

Yan Zhang et al.

Summary: The self-assembled 2 D NiO/CeO2 heterostructure exhibits excellent bifunctional catalytic properties for both the HER and OER in alkaline conditions, including low onset overpotential, good durability, and large active surface area.

CHEMISTRY-A EUROPEAN JOURNAL (2021)

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Article Chemistry, Physical

Facile synthesis of NiO@Ni(OH)2-α-MoO3 nanocomposite for enhanced solid-state symmetric supercapacitor application

Gunasekaran Manibalan et al.

Summary: The study successfully fabricated nickel-molybdenum heterogeneous nanocomposites and demonstrated their excellent performance in supercapacitor applications, including high specific capacitance, outstanding rate capability, and good cycling stability.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2021)

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Article Nanoscience & Nanotechnology

Tuning the Nanoparticle Interfacial Properties and Stability of the Core-Shell Structure in Zn-Doped NiMoO4@AWO4

Pratigya Sharma et al.

Summary: This study presents the tuning of interfacial region in core-shell nanocomposites with surface energy (de)stabilization, showcasing surface reconstruction in Zn-doped NiMoO4@AWO(4) structures. Experimental results demonstrate superior performance of the asymmetric device composed of Zn-doped NiMoO4 and CoWO4 in supercapacitors.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Review Chemistry, Multidisciplinary

Roadmap and Direction toward High-Performance MoS2 Hydrogen Evolution Catalysts

Yang Cao

Summary: MoS2 shows Pt-like hydrogen evolution reaction (HER) performance through strategies such as phase engineering, S vacancy, heterojunctions, and dopants. By utilizing these approaches, MoS2 has the potential to become a highly efficient HER catalyst comparable to Pt.

ACS NANO (2021)

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Article Engineering, Environmental

Hierarchical porous heterostructured Co(OH)2/CoSe2 nanoarray: A controllable design electrode for advanced asymmetrical supercapacitors

Kun Song et al.

Summary: Hierarchical porous Co(OH)(2)/CoSe2 heterostructure composites with excellent specific surface area and electrochemical performance were prepared by ion exchange method, demonstrating the potential for high-performance energy storage and water splitting applications.

CHEMICAL ENGINEERING JOURNAL (2021)

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Article Electrochemistry

Surface strain engineered Ni-NiO for boosting hydrogen evolution reaction in alkaline media

Xuerui Yi et al.

Summary: The study focuses on engineering the surface strain of Ni and NiO to regulate their surface d-band structures and HER activity, resulting in synthesized catalysts with expanded or compressed surface lattice, leading to enhanced HER activity. The synthesized sr-NiO catalyst shows the highest HER activity, surpassing many recently reported Ni-based HER catalysts in alkaline electrolytes.

ELECTROCHIMICA ACTA (2021)

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Article Energy & Fuels

Hierarchical NiCo/NiO/NiCo2O4 composite formation by solvothermal reaction as a potential electrode material for hydrogen evolutions and asymmetric supercapacitors

Periyasamy Sivakumar et al.

Summary: The study focuses on fabricating NiCo/NiO/NiCo2O4 composite materials with abundant active edges and improved electrical conductivity. The NC1 composite demonstrated excellent electrocatalytic activity and supercapacitor performance, as well as outstanding energy density and stability in a dual-electrode device.

INTERNATIONAL JOURNAL OF ENERGY RESEARCH (2021)

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Article Engineering, Electrical & Electronic

Co-modified Ni/N-doped carbon as electrocatalysts for HER and OER

Xinyi Shen et al.

Summary: Ni,Co-MOFs were synthesized by a simple hydrothermal method, and subsequently transformed into Co,Ni/N-doped porous carbon via pyrolysis. Among the samples, Co-1-Ni-0.5/NC exhibited the largest BET surface area, highest electrocatalytic activity for HER, and potential for overall water splitting applications.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2021)

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Review Materials Science, Multidisciplinary

Anisotropy of two-dimensional ReS2 and advances in its device application

Ya-Di Cao et al.

Summary: This review summarizes the distinctive crystal structure and intrinsic anisotropic properties of rhenium disulfide (ReS2), introduces its synthesis methods, and presents current applications and heterojunctions based on its anisotropic properties. The review not only provides a timely summary of the current applications of ReS2 and its heterojunctions, but also inspires new approaches for developing innovative devices using 2D materials with low lattice symmetry.

RARE METALS (2021)

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Article Chemistry, Inorganic & Nuclear

A flexible hybrid capacitor based an NiCo2S4 nanowire electrode with an ultrahigh capacitance

Tong Xia et al.

Summary: In this study, NiCo2S4 nanowire bundles were synthesized on a nickel foam via hydrothermal routes, which possess excellent specific surface area as an electrode material, shortening the diffusion channel of ions. The assembled asymmetric supercapacitor demonstrates high energy density and excellent mechanical stability even at different bending angles.

DALTON TRANSACTIONS (2021)

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Article Chemistry, Applied

Hierarchical CoSeS nanostructures assisted by Nb doping for enhanced hydrogen evolution reaction

Ya-Nan Zhou et al.

Summary: Metal doping and nonmetal doping were used to prepare a conductive substrate in carbon nanospheres, improving the catalytic performance for the hydrogen evolution reaction. Dual nonmetal doping resulted in lower overpotential and good long-term stability of the catalyst.

CHINESE JOURNAL OF CATALYSIS (2021)

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Article Nanoscience & Nanotechnology

Facile Synthesis of Metal-Organic Framework-Derived CoSe2 Nanoparticles Embedded in the N-Doped Carbon Nanosheet Array and Application for Supercapacitors

Chenxu Miao et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Article Chemistry, Multidisciplinary

Flexible Co-Mo-N/Au Electrodes with a Hierarchical Nanoporous Architecture as Highly Efficient Electrocatalysts for Oxygen Evolution Reaction

Rui-Qi Yao et al.

ADVANCED MATERIALS (2020)

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Article Chemistry, Physical

A highly effective bifunctional catalyst of cobalt selenide nanoparticles embedded nitrogen-doped bamboo-like carbon nanotubes toward hydrogen and oxygen evolution reactions based on metal-organic framework

Hui Ding et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2020)

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Editorial Material Chemistry, Physical

The dynamics of the peel

Rongming Wang

NATURE CATALYSIS (2020)

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Review Engineering, Environmental

Recent progress in electrode fabrication for electrocatalytic hydrogen evolution reaction: A mini review

Wei Yang et al.

CHEMICAL ENGINEERING JOURNAL (2020)

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Article Chemistry, Physical

Realizing Superior Electrochemical Performance of Asymmetric Capacitors through Tailoring Electrode Architectures

Hengqi Liu et al.

ACS APPLIED ENERGY MATERIALS (2020)

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Article Nanoscience & Nanotechnology

Zn Metal Atom Doping on the Surface Plane of One-Dimesional NiMoO4 Nanorods with Improved Redox Chemistry

Pratigya Sharma et al.

ACS APPLIED MATERIALS & INTERFACES (2020)

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Review Chemistry, Inorganic & Nuclear

Recent progress in metal-organic framework-based supercapacitor electrode materials

Ben Xu et al.

COORDINATION CHEMISTRY REVIEWS (2020)

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Article Chemistry, Multidisciplinary

Perspectives on Nickel Hydroxide Electrodes Suitable for Rechargeable Batteries: Electrolytic vs. Chemical Synthesis Routes

Baladev Ash et al.

NANOMATERIALS (2020)

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Article Chemistry, Physical

Metal-organic framework derived Ni/NiO micro-particles with subtle lattice distortions for high-performance electrocatalyst and supercapacitor

Yang Jiao et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2019)

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Article Chemistry, Physical

In situ construction of CoSe2@vertical-oriented graphene arrays as self-supporting electrodes for sodium-ion capacitors and electrocatalytic oxygen evolution

Zhou Xia et al.

NANO ENERGY (2019)

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Article Chemistry, Physical

Vulcanization induced composition regulation of NiO electrode materials with improved electrochemical performances

Wanting Su et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2019)

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Article Chemistry, Physical

MOF-derived tremelliform Co3O4/NiO/Mn2O3 with excellent capacitive performance

Shuting Li et al.

APPLIED SURFACE SCIENCE (2019)

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Article Chemistry, Physical

Facile synthesis of NiO nanocubes for photocatalysts and supercapacitor electrodes

Wanting Sun et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2019)

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Review Chemistry, Multidisciplinary

Current progress achieved in novel materials for supercapacitor electrodes: mini review

Sumaiyah Najib et al.

NANOSCALE ADVANCES (2019)

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Article Chemistry, Multidisciplinary

Rational Construction of Hollow Core-Branch CoSe2 Nanoarrays for High-Performance Asymmetric Supercapacitor and Efficient Oxygen Evolution

Tian Chen et al.

SMALL (2018)

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Article Chemistry, Multidisciplinary

CoSe2/MoSe2 Heterostructures with Enriched Water Adsorption/Dissociation Sites towards Enhanced Alkaline Hydrogen Evolution Reaction

Guoqiang Zhao et al.

CHEMISTRY-A EUROPEAN JOURNAL (2018)

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Review Chemistry, Physical

Overview of nanostructured metal oxides and pure nickel oxide (NiO) electrodes for supercapacitors: A review

Ranjit S. Kate et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2018)

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Article Chemistry, Physical

Fe-doped NiO mesoporous nanosheets array for highly efficient overall water splitting

Zhengcui Wu et al.

JOURNAL OF CATALYSIS (2018)

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Article Physics, Condensed Matter

Facile synthesis of mesoporous NiO nanoflakes on graphene foam and its electrochemical properties for supercapacitor application

Jinlong Lv et al.

SOLID STATE COMMUNICATIONS (2018)

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Article Chemistry, Multidisciplinary

Preparation of MnCo2O4@Ni(OH)2 Core-Shell Flowers for Asymmetric Supercapacitor Materials with Ultrahigh Specific Capacitance

Yan Zhao et al.

ADVANCED FUNCTIONAL MATERIALS (2016)

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Article Chemistry, Multidisciplinary

Effect of calcination temperatures on the electrochemical performances of nickel oxide/reduction graphene oxide (NiO/RGO) composites synthesized by hydrothermal method

Gang Chen et al.

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS (2016)

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Article Chemistry, Multidisciplinary

Three-Dimensional Crystalline/Amorphous Co/Co3O4 Core/Shell Nanosheets as Efficient Electrocatalysts for the Hydrogen Evolution Reaction

Xiaodong Yan et al.

NANO LETTERS (2015)

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Article Chemistry, Multidisciplinary

A flexible spiral-type supercapacitor based on ZnCo2O4 nanorod electrodes

Hao Wu et al.

NANOSCALE (2015)

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Article Chemistry, Physical

Hierarchical porous Ni/NiO core-shells with superior conductivity for electrochemical pseudo-capacitors and glucose sensors

Chao Zhang et al.

JOURNAL OF MATERIALS CHEMISTRY A (2015)

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Article Nanoscience & Nanotechnology

Rapid Microwave-Assisted Green Synthesis of 3D Hierarchical Flower-Shaped NiCo2O4 Microsphere for High-Performance Supercapacitor

Ying Lei et al.

ACS APPLIED MATERIALS & INTERFACES (2014)

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Article Chemistry, Inorganic & Nuclear

Ag incorporated Mn3O4/AC nanocomposite based supercapacitor devices with high energy density and power density

S. Nagamuthu et al.

DALTON TRANSACTIONS (2014)

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Size-dependent capacitance of NiO nanoparticles synthesized with cathodic contact glow discharge electrolysis

Anis Allagui et al.

JOURNAL OF POWER SOURCES (2014)

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A Novel High-Energy Hybrid Supercapacitor with an Anatase TiO2-Reduced Graphene Oxide Anode and an Activated Carbon Cathode

Haegyeom Kim et al.

ADVANCED ENERGY MATERIALS (2013)

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Article Chemistry, Physical

Comparison of Nanoscaled and Bulk NiO Structural and Environmental Characteristics by XRD, XAFS, and XPS

Matthea A. Peck et al.

CHEMISTRY OF MATERIALS (2012)

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NiO@CoSe2 nanostructures for high-performance asymmetric supercapacitors and efficient electrocatalysts

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