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Article
Materials Science, Multidisciplinary
Sanshuang Gao et al.
Summary: In this study, a bifunctional catalyst for CO2RR and ORR reactions in aqueous Zn-air batteries (ZAB) was developed. The catalyst, consisting of atomically dispersed niobium anchored onto N-doped ordered mesoporous carbon (Nb-N-C), exhibited high activity for CO2RR, ORR, and ZAB, thanks to the high Nb atom-utilization efficiency and ordered mesoporous structure. Furthermore, the self-powered CO2 electrolysis system showed promising performance with continuous CO2 conversion.
SCIENCE CHINA-MATERIALS
(2023)
Review
Chemistry, Physical
Wenxian Liu et al.
Summary: Aqueous rechargeable Zn-gas batteries are considered promising energy storage and conversion devices due to their safety and environmental friendliness. However, their energy efficiency and power density are limited by slow cathode reactions. This review introduces battery configurations and fundamental reactions, summarizes recent advances in active site engineering and cathode material regulation strategies, and provides personal perspectives on the future development of Zn-gas batteries.
Review
Chemistry, Physical
Wenxian Liu et al.
Summary: This review introduces aqueous rechargeable Zn-gas batteries and the challenges they face, discusses recent advances in enhancing the intrinsic catalytic activities of cathode catalysts and optimizing the performance of Zn-gas batteries, and presents personal perspectives for future development.
Article
Materials Science, Ceramics
Ariful Haque et al.
Summary: This study focuses on the magnetic transition of LaFe0.5Co0.5O3 and reports the low temperature sol-gel synthesis of pure and Bi-doped La1-xBixFe0.5Co0.5O3 perovskites. The samples were characterized and it was found that Bi doping resulted in structural transition and improved grain growth and crystallinity. Magnetization measurements showed weak ferromagnetic nature of La1-xBixFe0.5Co0.5O3, which could be attributed to the canted anti ferromagnetic structure and the interaction between Fe3+ ions. The increase in magnetic transition and the lower magnetic moment with an increase in Bi content were explained by the weakening of Dzyaloshinskii-Moriya interaction caused by structural modification and lattice distortion associated with Bi3+ ions.
CERAMICS INTERNATIONAL
(2022)
Article
Engineering, Environmental
Shuai Liu et al.
Summary: In this study, Fe-SA/BNC material was successfully fabricated and exhibited excellent CO2 reduction reaction activity, achieving remarkable current density and Faradaic efficiency through MEA. Density functional theory (DFT) calculations revealed the positive effect of introducing B on the desorption of *CO. Furthermore, the assembled Zn-CO2 battery demonstrated outstanding peak power density and stability for CO production.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Shuai Liu et al.
Summary: Emerging Fe-P-C structure, specifically Fe-P nanocrystals anchored in N-doped carbon polyhedrons (Fe-P@NCPs), has shown great potential for electrochemical catalysis in both CO2 reduction reaction (CO2RR) and Zn-CO2 batteries (ZCBs). These bifunctional electrocatalysts are synthesized through a simple strategy using self-templated zeolitic imidazolate frameworks (ZIFs) and high-temperature calcination. The resulting Fe-P@NCPs exhibit comparable CO2RR activity to the best-reported Fe-N-C structures, with a CO Faradaic efficiency of up to 95% at -0.55 V vs reversible hydrogen electrode (RHE). When used as cathode materials in ZCBs, the Fe-P@NCPs demonstrate peak power density of 0.85 mW cm(-2), energy density of 231.8 Wh kg(-1), cycling durability over 500 cycles, and outstanding stability in discharge voltage for 7 days. The presence of highly catalytic Fe-P nanocrystals in N-doped carbon matrix contributes to the high selectivity and efficiency of the battery by increasing catalytically active sites and improving interfacial charge-transfer conductivity for enhanced CO2RR activity.
Article
Chemistry, Physical
Mengmeng Jin et al.
Summary: This study demonstrates an active and stable catalyst composed of highly dispersed Ag nanoclusters on N-doped hollow carbon spheres, which can effectively reduce O-2 molecules into H2O2 with high selectivity and durability in acidic media.
Article
Materials Science, Multidisciplinary
Bing-Lu Deng et al.
Summary: Designing highly active and stable electrocatalysts for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) is crucial for energy conversion and storage technology. In this study, a S and N co-doped graphene-supported cobalt-nickel sulfide composite catalyst was synthesized through a one-step hydrothermal method, showing excellent bifunctional catalytic performance under alkaline conditions. The good hydrophilicity of rGO@SN, the pure bimetallic structure, and the chemical coupling/interaction between CoNi2S4 and rGO@SN are believed to contribute to the enhanced HER and OER catalytic activities.
Article
Chemistry, Inorganic & Nuclear
Honghui Chen et al.
Summary: In this study, CoSe2 nanocrystals embedded into a carbon framework grown on carbon cloth were successfully designed, demonstrating excellent performance in seawater splitting and promising applications in sustainable hydrogen production.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Nanoscience & Nanotechnology
Quan Zhang et al.
Summary: High entropy alloys are considered a major breakthrough in alloying concepts, with unique design concepts and mixed entropy effects that make them potentially valuable in many applications across various fields. This Research Update summarizes recent research progress on high entropy alloy catalysts in electrolytic water splitting, covering their definition, properties, preparation methods, catalytic effects, and future development trends and application prospects.
Article
Chemistry, Physical
Shangmeng Ge et al.
Summary: In this study, PtCu nanoalloys were synthesized through a template-assisted method. The regulated crystal structure and synergistic effect between Pt and Cu contribute to the excellent bifunctional activities of PtCu-NA in overall water splitting. The as-prepared nanoalloy exhibits low overpotentials and high efficiency, outperforming commercial Pt/C in both hydrogen evolution and hydrazine oxidation reactions.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Hao Zhang et al.
Summary: Seawater electrolysis is an attractive method for clean energy/hydrogen production due to the abundance of seawater. However, the scarcity of precious metals and inadequate materials pose challenges in obtaining bifunctional electrocatalysts with high catalytic activity and durability. This review introduces the mechanism and challenges of seawater electrolysis and summarizes optimization strategies for non-noble-metal-based electrocatalysts to provide guidance for the commercialization of seawater electrolysis.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Maha Alhaddad et al.
Summary: This study focuses on designing an efficient heterojunction photocatalyst using mesoporous TiO2 framework and Co3O4 NPs for the degradation of antibiotics under visible light. The synthesized 1.5% Co3O4/TiO2 nanocomposite showed the highest degradation performance for ciprofloxacin (CIP) and significantly increased the apparent rate constant, demonstrating excellent stability over five cycles. The S-scheme Co3O4/TiO2 p-n heterojunction construction enhances the generation of active oxidative species for efficient photodegradation of CIP.
Review
Chemistry, Multidisciplinary
Junyang Ding et al.
Summary: This article reviews the methods of enhancing the activity of metal nanoclusters (MNCs) in water electrolysis and introduces the recent progress of MNCs classified with different stabilization strategies. It also identifies the current challenges and deficiencies of these MNCs in water electrolysis.
Article
Nanoscience & Nanotechnology
Sanshuang Gao et al.
Summary: A bifunctional catalyst BiPdC is proposed for simultaneous CO2RR and FAO reactions, showing enhanced efficiency and current density. The synergistic effect between Pd and Bi overcomes the sluggish kinetics of the reactions, leading to improved performance of the battery.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Ge Meng et al.
Summary: In this study, Ru clusters supported on nitrogen-doped hollow carbon spheres exhibit remarkable activity and durability for hydrogen oxidation reaction (HOR) and H-2-O-2 fuel cell performance in alkaline media. Theoretical simulations indicate that Ru clusters provide thermodynamically favorable HOR kinetics and optimal hydrogen adsorption affinity.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Yanbin Sun et al.
Summary: The Anderson-type polyoxometalate in deep eutectic solvents shows remarkable catalytic performance for the selective aerobic oxidation of HMF to FFCA, indicating a promising and environmentally friendly approach for biomass conversion.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Ge Meng et al.
Summary: This research demonstrates that a nickel-iron layered double hydroxide nanosheet array exhibits promising catalytic performance under ambient conditions, and its superior performance is further confirmed in a Zn-NO battery.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Xinzhong Wang et al.
Summary: Polycrystalline SnSx nanofilms exhibit high faradaic efficiency and stability for formate production, even at a broad range of partial current densities.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Wangyan Gou et al.
Summary: This study demonstrates the enrichment of NiOOH intermediates on phytate-coordinated Ni foam through a phytate coordination-induced method, resulting in enhanced electro-oxidation performance for 5-hydroxymethylfurfural.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Junrong Hou et al.
Summary: This study reports a Mn-doped CoS2 catalyst with excellent bifunctional electrocatalytic activity and long-term stability for the hydrogen evolution reaction (HER) and hydrazine oxidation reaction (HzOR). The introduction of Mn significantly reduces the Gibbs free energy of the adsorbed H* and the potential rate-limiting step for the HzOR process. This work provides theoretical guidance for the design of advanced bifunctional electrocatalysts and promotes high efficiency and energy-saving H-2 production technology.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Chemistry, Multidisciplinary
Changlong Wang et al.
Summary: This study presents a 3D highly ordered mesoporous Co3O4/nickel foam electrode that achieves high efficiency, selectivity, and stability in the electrochemical oxidation of HMF to produce FDCA. The electrode demonstrates fast electron transfer, high electrochemical surface area, and reduced charge transfer resistance, leading to exceptional activity and selectivity towards FDCA.
Review
Chemistry, Multidisciplinary
Xiaomin Xu et al.
Summary: Proton exchange membrane (PEM) water electrolysis is a promising technology for green hydrogen production, but the slow reaction kinetics of the anodic oxygen evolution reaction (OER) in an acidic environment hinders its practical viability. Noble metal-based catalysts like iridium and ruthenium are effective for the acidic OER, but their low abundance and high cost pose challenges for their use in PEM electrolyzers. Metal-organic frameworks (MOFs) have emerged as a platform for designing efficient and cost-effective acidic OER catalysts, with promising future research directions towards better catalysts for operation in acidic environments and PEM devices.
Review
Electrochemistry
Liang Chang et al.
Summary: This paper provides a critical overview of metallic (1T) phases of transition metal dichalcogenides (TMDs) as promising alternatives for efficient and practical hydrogen evolution reaction (HER) catalysts. It discusses the efforts to enhance the stability of 1T TMDs, introduces the synthesis and morphology control approaches, and explores different types of 1T TMD-based materials for water splitting. Future perspectives on overcoming challenges in the practical application of 1T TMDs for HER are also provided.
ELECTROCHEMICAL ENERGY REVIEWS
(2021)
Article
Chemistry, Physical
Myung Jong Kang et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Review
Chemistry, Physical
Denis A. Kuznetsov et al.
Article
Chemistry, Physical
Bo You et al.
Article
Chemistry, Multidisciplinary
Bo You et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2016)
Article
Chemistry, Multidisciplinary
Hyun Gil Cha et al.
Article
Chemistry, Multidisciplinary
David J. Chadderdon et al.
Article
Physics, Applied
HT Fan et al.
APPLIED PHYSICS LETTERS
(2005)
