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Article
Engineering, Environmental
Ramasamy Santhosh Kumar et al.
Summary: In this study, a spinel-structured, cobalt-based, and carbon-supported electrocatalyst was prepared using a simple and cost-effective synthesis method. The fabricated Co3S4@rGO catalyst showed excellent catalytic activity for both the hydrogen evolution reaction and oxygen evolution reaction, comparable to commercial Pt-C and IrO2 catalysts.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Jianli Liang et al.
Summary: By studying the single-Cu-atom-decorated boron nitride nanofibers catalyst, it was found to exhibit excellent catalytic performance, high conversion efficiency, and cost efficiency. Although its performance is only at a moderate level compared to all precious-metal-based catalysts, its cost efficiency is the highest due to its lower cost.
Article
Chemistry, Physical
Shanmugam Ramakrishnan et al.
Summary: The paper introduces a highly durable and cost-effective core-shell electrocatalyst constructed on a porous carbon nanosheet for the development of high efficiency energy conversion and storage devices. The optimized CS-NFO@PNC-700 exhibits remarkable electrocatalytic activity and durability, and has been successfully applied in a zinc-air battery.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Zehua Yang et al.
Summary: This study developed nitrogen-doped porous carbon catalysts with single Cu atoms and Cu clusters as active sites, showing excellent ORR performance in both alkaline and acidic media. It not only provides a simple strategy for fabricating efficient catalysts, but also identifies the great potential of Cu-based materials for ORR.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Electrochemistry
Katam Srinivas et al.
Summary: The development of inexpensive and highly efficient bifunctional electrocatalysts is crucial for producing sustainable hydrogen fuel from renewable water sources. Researchers have developed a metal-organic framework (MOF)-derived material that exhibits exceptional water-splitting performance.
ELECTROCHIMICA ACTA
(2022)
Article
Chemistry, Multidisciplinary
Wei Zhang et al.
Summary: Employing the strong metal-support interaction (SMSI) effect can enhance the activity of catalysts towards the oxygen reduction reaction (ORR) and improve the utilization efficiency of platinum group metal (PGM) catalysts. By embedding ultralow loading of Pd in a surface-oxygenated PdNiMnO porous film, the SMSI effect at the Pd/oxygenated support interface is strengthened, leading to enhanced ORR performance. Furthermore, the Ni-containing oxygenated catalyst serves as both the active component for the oxygen evolution reaction (OER) and the functional support for stabilizing Pd, making it a bifunctional catalyst for zinc-air flow batteries (ZAFB).
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Zhenyuan Liu et al.
Summary: The development of a bifunctional electrocatalyst with CeO2-decorated Co nanoparticles supported on three-dimensionally porous carbon aerogels (Co-CeO2/C aerogels) showed outstanding electrochemical performance for both OER and ORR. The superior performance can be attributed to the multihole heterostructure, multiple components, and abundant oxygen vacancies, enabling efficient adsorption and catalyzation of reactants and mass transport of reagents/products.
Article
Chemistry, Multidisciplinary
Wenli Yu et al.
Summary: In this work, 2D nanosheets decorated with a 3D porous nanostructure, known as FeCoNi-NS-ACVs, were developed. FeCoNi-NS-ACVs exhibited superhydrophilic and excellent electroconductivity properties, and showed outstanding electrocatalytic performances and durability for both OER and overall water-splitting reactions.
Article
Chemistry, Physical
Pingbo Li et al.
Summary: A highly efficient ORR electrocatalyst with Fe-N-4 active sites was synthesized on a three-dimensional interconnected porous nitrogen-doped carbon network, showing superior activity and stability in the oxygen reduction reaction. This catalyst has great potential for practical application in zinc-air batteries.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Dewen Wang et al.
Summary: This study successfully enhanced the water splitting performance of NiCo2O4 spinel by using a dual modification method with Ru-doping and surface modification with Ru nanoparticles. The modified catalyst showed high activity and stability for both hydrogen and oxygen evolution reactions in alkaline media. Density functional theory calculations demonstrated that the dual modification optimized various parameters in the reaction process.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Kempanna Harish et al.
Summary: This study presents a novel strategy to design iron tin oxy-selenide (FexSn1-xOSe) catalysts with enriched oxygen vacancies through a hydrothermal and subsequent selenization process. The optimized catalyst exhibits superior performances in oxygen reduction, oxygen evolution, and hydrogen evolution reactions due to its abundance of electroactive sites and high synergistic effects. This work is of great significance for the development of highly active and durable catalysts in next-generation energy conversion and storage systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Lei Zeng et al.
Summary: In this work, ruthenium and copper single atoms were successfully incorporated into polymeric carbon nitride through a preassembly-coprecipitation-pyrolysis process. The resulting photocatalyst exhibited high selectivity for methane production during the photocatalytic reduction of CO2 under visible-light irradiation. The presence of Ru-N4 and Cu-N3 sites in the catalyst's structure facilitates the electron-hole pair separation and CO2 hydrogenation, leading to enhanced CH4 production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Yingxue Li et al.
Summary: MXenes are materials with unique electrical properties, but their surface oxidation and agglomeration of lamellar structure limit their application. This study proposes a new strategy to transform TiVCTx MXene into stable composites using oPD, improving its electrochemical performance and stability. The results show that N-TiVCTx composites exhibit excellent capacitance and pseudocapacitive charge storage performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Wen-Jun Niu et al.
Summary: Copper single atoms anchored on nitrogen-doped porous carbon (Cu-N/PC) derived from zeolitic imidazolate frameworks (ZIFs) demonstrate highly efficient electrocatalytic activity for the oxygen reduction reaction (ORR). A nitrogen-rich bridge molecule, tubular g-C3N4 (TCN), can trap free Cu ions through electrostatic interaction, leading to Cu-ion-doped TCN which regulates the copper and nitrogen doping content, electronic structure, specific surface area, and pore diameter of Cu-N/PC. The Cu-N/PC catalyst exhibits a higher ORR activity than commercially available Pt/C catalyst, with a more positive onset potential and half-wave potential.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Physical
Jian Zou et al.
Summary: By utilizing ordered templates and steam etching, the active site density of Fe-N-C catalysts with interconnected ordered porous structures was increased effectively, leading to an enhanced mass activity for oxygen reduction reaction.
Article
Chemistry, Physical
Yunyan Wu et al.
Summary: This study reports a soft template-directed synthesis method for Fe-Co DSACs. Fe and Co single atoms are stabilized on 2D carbon nanosheets separately to form a FeN4S1/CoN4S1 configuration, which optimizes the catalytic activity for oxygen reduction reaction. The Fe-Co DSAC exhibits outstanding performance in oxygen reduction reaction and Zn-air batteries, outperforming monometallic Fe and Co SACs.
ENERGY STORAGE MATERIALS
(2022)
Article
Chemistry, Physical
Hao Jiang et al.
Summary: In this study, a bifunctional electrocatalyst composed of individually dispersed Ni single atoms on N-doped carbon nanosheets (Ni SAs-NC) was synthesized and demonstrated to exhibit outstanding performance for both oxygen reduction reaction (ORR) and urea oxidation reaction (UOR). By coupling ORR with UOR of low thermodynamic potential, a urea-assisted rechargeable Zn-air battery (ZAB) with significantly decreased charging voltage and high urea elimination rate was achieved. The high bifunctional electrocatalytic activities of Ni SAs-NC resulted in a dramatically increased energy conversion efficiency of 71.8%, improving conventional ZABs by 17.1%. This successful implementation of Ni SAs-based urea-assisted ZABs with improved energy conversion efficiency may advance practical applications of ZAB technology.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Nanoscience & Nanotechnology
Yuanyuan Xue et al.
Summary: This study focuses on the preparation of Co nanoparticles and highly dispersed Fe loaded on N-doped porous carbon substrates through a double-solvent method. The optimized catalysts demonstrate excellent performance for oxygen reduction and evolution reaction, leading to higher peak power density and better cycling stability in rechargeable Zn-air batteries compared to commercial catalysts. The interaction of Co nanoparticles and highly dispersed Fe, as well as the specific surface areas, porous structures, and carbon networks, plays important roles in improving oxygen electrocatalysis.
NANO-MICRO LETTERS
(2022)
Article
Chemistry, Physical
Jizhao Zou et al.
Summary: The laser-induced carbonized strategy (LIC) rapidly converts MOFs into conductive carbon network structures, resulting in better electrocatalyst performance than traditional carbonization methods. The high specific surface area and unique honeycomb-like structure of the Co/N-doped carbon networks contribute to improved electrolyte storage and mass transfer processes.
Article
Engineering, Environmental
Fuping Zhang et al.
Summary: The researchers developed a facile metal-organic framework strategy to fabricate porous Co/CoO@HNC material, which exhibited excellent activity and stability in oxygen redox electrocatalysis. The findings provide a new approach for engineering hollow materials for energy-related applications.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Materials Science, Multidisciplinary
Jian Wang et al.
Summary: Carbon-based materials have unique advantages for electrocatalysis, and this review provides an overview of the current research status and methods for designing high-performance carbon-based electrocatalysts, offering essential guidance for sustainable energy applications.
PROGRESS IN MATERIALS SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Zuozhong Liang et al.
Summary: Synthesizing metal-organic framework (MOF)-supported Co porphyrins for the oxygen reduction reaction (ORR) leads to improved activity and selectivity. The grafted Co porphyrins show boosted ORR activity and improved selectivity for the 4e ORR, demonstrating potential for application as air electrode catalysts in Zn-air batteries.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Jing Yu et al.
Summary: This study presents a novel Ni single atoms and nanoparticles hybrid catalyst with high single atoms loading and excellent hydrogen evolution performance, showing low overpotential and long-term durability in 1M KOH. The synergistic effect of atomically dispersed Ni and nanoparticles leads to significantly enhanced water adsorption/dissociation abilities and optimized H adsorption free energy in alkaline media, paving a new avenue for designing single atoms-based electrocatalysts.
Article
Chemistry, Physical
Vipin Adavan Kiliyankil et al.
Summary: The novel deodorizer described in the text is a nanostructured aerogel capable of selectively eliminating odorous chemicals such as ammonia, trimethylamine, hydrogen sulfide, and methyl mercaptan. It is lightweight, eco-friendly, and easy to produce, showing higher adsorption capabilities compared to activated carbon.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Biomedical
Dongdong Qiao et al.
Summary: Nanovaccines prepared using flash nanocomplexation technology enhance the uptake of antigens and adjuvants by cells, promote the maturation and activation of dendritic cells, and exhibit excellent lymph nodes targeting ability. Co-administered nanovaccines can break immune tolerance, restore HBV-specific immune responses, and achieve high rates of seroclearance and seroconversion in a mouse model of CHB. The vaccines also induce long-term immune memory to protect against HBV reinfection.
Article
Chemistry, Multidisciplinary
Xin Luo et al.
Summary: SA-Ir/NC as an efficient catalyst in ZAB exhibits superior performance for SPSS to achieve high-sensitivity glucose detection, showing excellent ORR activity and stability in neutral electrolytes.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Sisi Wu et al.
Summary: A novel magnetic polysaccharide composite hydrogel was successfully synthesized for removal of heavy metal ions from aqueous solution. The maximum adsorption capacities for Mn(II), Pb(II), and Cu(II) were found to be 71.83, 89.49, and 105.93 mg/g, respectively, with ion exchange and chemical adsorption being the main adsorption mechanisms. The magnetic hydrogel showed high efficiency even after four cycles, indicating its great potential for practical applications in heavy metal ion removal.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Tewodros Asefa et al.
Summary: The growing energy demand worldwide has led to increased use of fossil fuels, which is depleting faster and causing more negative environmental impacts. Alternative, environmentally friendly energy sources such as fuel cells and electrolyzers are being developed. Significant progress has been made in this area, though challenges remain in scaling up such energy systems due to their noble metal catalysts.
Article
Chemistry, Multidisciplinary
Lingbo Zong et al.
Summary: This study reports a method of anchoring transition metal single atoms on carbon support by creating defects and vacancies, resulting in electrocatalysts with superior oxygen reduction reaction catalytic activity. Among them, Cu-SAs@N-CNS exhibits excellent bifunctional activity for oxygen reduction and oxygen evolution reactions, and is successfully used as an efficient air cathode material for zinc-air batteries; the study suggests that N-terminated vacancies on graphitic carbons are the preferred sites for anchoring Cu single atoms.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Physical
Jayaraman Balamurugan et al.
Summary: The development of 3D nickel molybdenum oxyselenide nanoarchitectures with numerous oxygen vacancies through a low-cost hydrothermal and selenium ion modulation approach has been shown to enhance catalytic activities and electrochemical performance. This strategy provides a general approach to explore efficient multifunctional catalysts with enhanced durability for applications such as flexible Zn-air batteries and water electrolyzers.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Jie Zhang et al.
Summary: A ligand-assisted strategy was proposed to synthesize single atomic Fe-N-C catalyst derived from Zr-metal-organic frameworks (Zr-MOFs) to enhance ORR activity in Zn-air batteries. The resulting catalyst exhibited comparable ORR activity and outstanding stability due to the optimized Fe-N-4 configuration and strong interface interaction. Density functional theory calculation results further supported the improved ORR process and activity with adjacent ZrO2 nanocluster modulation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Leilei Yin et al.
Summary: A novel strategy was proposed to fabricate dual-metal zeolitic imidazolate framework (CoZn-ZIF) nanocrystals on Cu(OH)(2) nanowires, leading to the formation of highly ordered CuO@CoZn-LDH nanoarrays with defect-rich porous surface for efficient water splitting. The catalyst showed excellent activity with low overpotentials for oxygen and hydrogen evolution reactions in alkaline media, and demonstrated a low cell voltage for overall water splitting, comparable to commercial catalysts. This work provides a new perspective for designing and fabricating advanced multifunctional electrocatalysts for electrochemical energy devices.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Multidisciplinary
Xian-Wei Lv et al.
Summary: The study reports an effective strategy to improve the efficiency of core-shell Co2P@NC electrocatalysts through secondary metal doping, leading to multifunctional HER/OER/ORR activities suitable for overall water splitting and Zn-air batteries.
Article
Chemistry, Multidisciplinary
Mingwen Wang et al.
Summary: This study presents a new type of porous carbon doped with Cu, N, S as a trifunctional catalyst, which exhibits excellent electrocatalytic performance and stability for the ORR, OER, and HER reactions, surpassing noble metals in certain aspects. The catalyst shows promising potential for applications in Zn-air batteries and overall water splitting, demonstrating superior performance. The synthesis method offers opportunities for new catalyst design and discovery, enabling versatile and robust energy applications.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Physical
Jayaraman Balamurugan et al.
Summary: A novel copper molybdenum oxynitride anchored nitrogen-doped graphene material with excellent electrocatalytic activity has been synthesized for use in metal-air batteries and water splitting devices. The material design enhances the electroactive sites for oxygen reduction/evolution reactions and hydrogen evolution reaction, optimizing electron transport behavior for improved performance.
Review
Chemistry, Multidisciplinary
Sheikh Tareq Rahman et al.
Summary: Electrocatalysts play a crucial role in renewable energy conversion, with ORR, OER, and HER catalysis being highly researched; in order to enhance the prospects of multifunctional electrocatalysts, the development of effective nanostructured multifunctional electrocatalysts and their industrialization are necessary.
NANOTECHNOLOGY REVIEWS
(2021)
Article
Materials Science, Multidisciplinary
Jun Yuan et al.
Summary: A simple method for designing printable cellulose-based inks by adding sodium alginate (SA) to the formulation was proposed in this study, and hierarchically porous cellulose/alginate monolithic hydrogel (CAH) for highly effective adsorption of methylene blue (MB) was manufactured. Characterization results confirmed the successful preparation of CAH and identified hydrogen bond interaction and electrostatic interaction as the dominant mechanisms for MB removal onto CAH. The results suggest that the 3D-printed CAH could be a high-potential material for environmental applications.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Chemistry, Physical
Thanh Tuan Nguyen et al.
Summary: The oxygen vacancies enriched V-O-CMON@NCN catalyst has shown exceptional performance as an advanced air-cathode for rechargeable zinc-air batteries, surpassing conventional Pt/C and RuO2 catalysts in both oxygen reduction and oxygen evolution reactions. The rechargeable ZABs with V-O-CMON@NCN-800 air-cathode exhibited high specific capacity, peak power density, and long cycling life, suggesting the potential of V-O-CMON@NCN as promising bifunctional catalysts for next-generation metal-air batteries and other energy-related applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Review
Chemistry, Inorganic & Nuclear
Karthick Kannimuthu et al.
Summary: This article focuses on the importance of Cu-based nanostructures as effective electrocatalysts for both oxygen evolution reaction (OER) and hydrogen evolution reaction (HER), providing a brief understanding for the feasibility of hydrogen generation through electrocatalytic water splitting.
INORGANIC CHEMISTRY FRONTIERS
(2021)
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ELECTROCHIMICA ACTA
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MOLECULAR PHARMACEUTICS
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Nayantara K. Wagh et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
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Zeyu Li et al.
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Wenjie Zang et al.
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APPLIED SURFACE SCIENCE
(2019)
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Wei Li et al.
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Liting Cui et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
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Yijie Deng et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Nanoscience & Nanotechnology
Kakali Maiti et al.
ACS APPLIED MATERIALS & INTERFACES
(2018)
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Fantao Kong et al.
ADVANCED FUNCTIONAL MATERIALS
(2018)
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ADVANCED FUNCTIONAL MATERIALS
(2018)
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