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Review
Materials Science, Multidisciplinary
Jian-Peng Sun et al.
Summary: Electrocatalytic seawater splitting is a promising green chemical process for hydrogen production, but the presence of insoluble solids and chloride ions in seawater poses challenges to the activity and stability of catalysts. Researchers have made great efforts to develop effective electrocatalysts and proposed various strategies to overcome the challenges associated with seawater splitting.
Article
Chemistry, Physical
Reza Andaveh et al.
Summary: This study presents a high-performance bifunctional water (seawater) electrocatalyst, 3-D heterostructured MnCo/NiSe/NF, for hydrogen production through seawater electrolysis. The MnCo/NiSe catalyst exhibits excellent catalytic activity for both HER and OER in alkaline water and seawater, with a synergistic effect between MnCo and NiSe. The findings are supported by DFT-based modeling.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Xueling Wang et al.
Summary: In this study, a novel strategy is utilized to synthesize dual-phase nitride nanobelts (NBs) composed of Mo2N and Ni0.2Mo0.8N, by nitridation of Ni2+ intercalated layered MoO3 NBs. The Mo2N/Ni0.2Mo0.8N catalyst exhibits excellent stability and performance in alkaline electrolyte and simulated seawater, comparable to or better than Pt/C catalyst. The high catalytic activity is attributed to the heterostructure of Mo2N/Ni0.2Mo0.8N with adjustable content and robust interfaces, as well as the absence of metal Ni segregation and structure collapse during nitridation.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Multidisciplinary
Gao Na et al.
Summary: In this study, carbon-based Mo2C with hybrid phase of MoO2 was synthesized by using pomelo peel-derived carbon and optimizing raw carbon amount and prolysis temperature. The resulting MoO2/Mo2C@C exhibited excellent HER performance in alkaline solution, requiring only low overpotentials to drive high current density.
CHEMISTRY-AN ASIAN JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Yue-Wei Wei et al.
Summary: In this paper, a carbon-coated zeolite prepared by high temperature calcination using glucose as carbon source was used as a composite support for ultrafine Ru nanoparticles, which showed outstanding catalytic activity in the hydrolysis of ammonia borane (AB). The catalyst exhibited a turnover frequency of 892 min(-1) at room temperature, outperforming many previously reported catalysts. The excellent catalytic activity was attributed to the carbon layer effectively limiting Ru nanoparticle aggregation and the role of zeolite in pre-activating water. The study of catalyst concentration, AB concentration, and NaOH concentration further investigated the hydrolysis rate of AB.
Article
Chemistry, Applied
Xiang Peng et al.
Summary: Combining electrocatalytic water splitting with waste iron upgrading reaction can improve energy conversion efficiency and achieve high-efficiency hydrogen production in neutral media. The heterostructured MoSe2/MoO2 on carbon cloth shows superior catalytic performance compared to commercial Pt/C catalyst at high current densities. Replacing conventional oxygen evolution reaction with waste iron upgrading reaction reduces the required potential by 95% for anodic current density of 10 mA cm-2. This work demonstrates energy-saving hydrogen production and pollutant recycling without carbon emission in a single system.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Dafeng Yan et al.
Summary: Renewable H-2 production by water electrolysis has received much attention, but the energy consumption of conventional water electrolysis is high. This review summarizes the latest findings on innovative electrochemical strategies for H-2 production, including the use of redox mediators and alternative anodic reactions. The study also presents electrochemical H-2 production at both the cathode and anode, as well as the challenges and prospects for future development.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Multidisciplinary
Xingkun Wang et al.
Summary: In this study, ampere-level current density hydrogen production was achieved through the synchronous modification of Volmer/Tafel kinetics using double-tuned RuCo nanoalloy and dual metal single atoms on hierarchical N-doped mesoporous carbon (RuCo@RuSACoSA-NMC). The optimized electronic structure of Ru sites and double-tuned Ru sites resulted in faster Volmer kinetics and optimized Tafel kinetics respectively, leading to ultralow HER overpotential, high mass activity, and high turnover frequency. Furthermore, RuCo@RuSACoSA-NMC exhibited low power consumption and estimated costs, making it a cost-effective catalyst for ampere-level current density hydrogen production.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Lin Wang et al.
Summary: In this study, a novel Ru-based catalyst Ru/Ni@C with outstanding hydrogen evolution reaction (HER) performance was developed. It exhibited an ultra-low overpotential of 309 mV at 1.0 A cm-2, surpassing commercial Pt/C and Ru/C catalysts. Experimental and theoretical results showed that efficient electron transfer from anchored Ru cluster to core Ni particles via carbon layer led to the formation of electron-deficient Ru site, which benefited the adjustment of H adsorption ability and ultimately promoted the whole HER process.
Article
Chemistry, Physical
Jianpeng Sun et al.
Summary: In this study, a rapid Joule heating method was used to prepare Co2Mo3O8/MoO2 heterointerfaces on Ni foam in only 130 s, which exhibited enhanced electrocatalytic performance for hydrogen evolution reaction. The as-prepared Co2Mo3O8/MoO2 showed remarkable activity comparable to Pt-based electrocatalysts and excellent stability in electrocatalytic splitting of alkaline seawater. DFT calculations revealed the electron redistribution at the heterointerfaces, which contributed to the high-efficiency adsorption of H2O and near-zero hydrogen adsorption free energy.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Yu Qiu et al.
Summary: This study successfully anchored Pt single atoms in the oxygen vacancies of MoO2 to create an advanced HER electrocatalyst, exhibiting superior activity in a wide range of pH electrolytes at high current densities. The synergistic catalytic effects between Pt single atoms and oxygen vacancies in MoO2 contribute to significantly improved HER performances, providing insights for the rational design of future electrocatalysts for clean energy utilization.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Inorganic & Nuclear
Priyanka Aggarwal et al.
Summary: Single-atom catalysts are considered the next generation of heterogeneous catalysts, offering benefits such as maximizing metal atom utilization and well-defined active centers. Research focuses on developing low-cost, high-performing, and durable SACs for electrocatalytic hydrogen evolution reaction, while also examining the influence of supports on net HER efficiency.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Physical
Chuang Li et al.
Summary: This paper successfully designs Ru/MoO2_x catalyst for the alkaline hydrogen evolution reaction, addressing the insufficient electrochemical activity of MoO2 and weak adsorption/dissociation abilities of Ru. The specific structure design incorporating Ru-O-Mo sites and oxygen-vacancy-enriched MoO2 enables the catalyst to exhibit excellent electrocatalytic activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Multidisciplinary
Huai Qin Fu et al.
Summary: This study presents a new approach for water-alkaline electrolysis hydrogen production, which enables the operation at ampere-level current densities under low overpotentials with the use of hydrogen spillover-bridged water dissociation/hydrogen formation processes and synergistically hybridized catalysts. Mechanistic insights critical to enable ampere-level current density operation are revealed through experimental and theoretical studies.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Review
Materials Science, Multidisciplinary
Tong Wu et al.
Summary: Hydrogen is a promising candidate for clean and sustainable energy resources, and electrochemical hydrogen production is considered a viable strategy. However, challenges lie in the sluggish and energy-intensive oxygen evolution reduction at the anode and the expensive catalysts used in overall water splitting. Efforts have been made to develop non-noble metal-based electrocatalysts and explore alternative oxidation reactions for energy-saving hydrogen production.
Review
Chemistry, Physical
Liwei Xiong et al.
Summary: This article describes the effects and mechanism of the electronic structure on the electrocatalytic activity and discusses viable strategies to modulate the electronic configuration of electrocatalysts.
Article
Multidisciplinary Sciences
Hao-Xin Liu et al.
Summary: Constructing effective catalytic interfaces is crucial for improving catalytic performance. In this study, the authors utilized the stress of MoO3/gamma-Mo2N structure and the interaction between Pt and support to construct an effective catalytic interface for the low-temperature reverse water-gas shift reaction. By depositing isolated Pt atoms onto a thin layer of MoO3 surface, followed by reduction into MoOx and formation of Pt clusters, high-density Pt-n-O-v active sites were created, leading to enhanced catalytic activity.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Yichao Huang et al.
Summary: A study reports an interfacial engineering strategy that regulates the nanostructure, electronic structure, and interfacial structure of Mo2N quantum dots on N-doped graphene via codoping with Al and O. This strategy enhances hydrophilicity, lowers energy barriers, and achieves remarkable alkaline hydrogen evolution reaction performance.
Article
Materials Science, Multidisciplinary
Wen Xin Li et al.
Summary: This study successfully anchored Pt species on defect-rich W18O49 nanowires via a freeze-drying method, improving the hydrogen evolution reaction performance in acidic water and achieving the goal of reducing Pt amount while maintaining high activity.
SCIENCE CHINA-MATERIALS
(2022)
Article
Chemistry, Physical
Nanzhu Nie et al.
Summary: In this study, a novel strategy for constructing stable electrocatalysts for high-current-density neutral seawater hydrogen evolution was developed through strong metal-support interaction (SMSI) and incorporation of Pt. The optimized PtNb-Nb2O5@CC exhibited excellent electrochemical performance and durability, and opened up new opportunities for further exploration of SMSI and Pt incorporation in catalytic applications.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Ankur Kumar et al.
Summary: Trimetallic FeCoPd polyhedral alloy nanoparticles were developed as a highly efficient bifunctional electrocatalyst for hydrogen and oxygen evolution reactions. The nanoparticles showed high current density and stability in both acidic and basic electrolytes after surface oxidation treatment.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Xiang Peng et al.
Summary: In this study, a new method combining the methanol oxidation reaction (MOR) and the hydrogen evolution reaction (HER) was introduced to achieve energy-saving hydrogen production. By using a bifunctional electrocatalyst with a NiSe/MoSe2 heterointerface on carbon cloth, high efficiency and stability in hydrogen production can be achieved. This approach shows great potential for sustainable energy generation.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Multidisciplinary
Ying Gu et al.
Summary: A new strategy for synthesizing 2D porous MoP/Mo2N heterojunction nanosheets with excellent HER activity was presented in this study. The nanosheets exhibit favorable water dissociation kinetics, large accessible surface area, and enhanced mass-transport ability through pores, leading to low overpotentials in alkaline, neutral, and acidic electrolytes. The HER performance of the nanosheets surpasses that of commercial Pt/C in both neutral and alkaline media.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Multidisciplinary
Yi-Zhong Wang et al.
Summary: Water electrolysis is a promising technology for producing clean hydrogen fuel, but lacks efficient non-noble metal catalysts for large-scale application. This study introduces a multi-step strategy to prepare hierarchical Co-decorated Mo2C hollow spheres for enhanced hydrogen evolution reaction performance through unique hollow structures and Co species incorporation. The as-prepared CMCHSs exhibit significantly improved HER performance in acid with a low overpotential and good cycling durability.
Article
Materials Science, Multidisciplinary
Ping Qin et al.
Summary: This study enhances the supercapacitance storage of MoO2.39 by introducing oxygen vacancies in MoO3 nanobelts, mainly attributed to proton adsorption at the O1 sites and interlayer spacing expansion. Roughly 98% of the initial supercapacitance is retained after 1000 cycles, highlighting the reversible change in interlayer spacing as a key factor in maintaining supercapacitance.
Review
Chemistry, Multidisciplinary
Hui Ding et al.
Summary: Electrochemical water splitting for hydrogen generation is a promising pathway for renewable energy conversion. Developing cost-effective and highly efficient electrocatalysts to drive sluggish oxygen-evolution reaction (OER) at the anode side is crucial. The investigation of structural transformation during OER contributes to understanding accurate catalytic mechanisms and benefiting the rational design of catalytic materials.
Review
Materials Science, Multidisciplinary
Fei Zhou et al.
Summary: This paper introduces the basic principles of the hydrogen evolution reaction (HER) process and evaluates different categories of nanostructured electrocatalytic materials, providing guidance for the design and fabrication of nanostructured HER catalysts. The recent progress and future research directions regarding the performance of metallic nanostructured materials are also discussed.
Article
Chemistry, Physical
Chuanyong Jian et al.
Summary: Introducing Schottky heterojunction optimized the electronic structure and tuned the hydrogen adsorption and dissociation behavior, leading to improved performance in hydrogen evolution. The MoSe2-Mo2N/Mo electrode demonstrated efficient hydrogen evolution in alkaline media, outperforming commercial Pt/C electrodes.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Xiang Peng et al.
Article
Multidisciplinary Sciences
Chi Zhang et al.
NATURE COMMUNICATIONS
(2020)
Article
Multidisciplinary Sciences
Zhilong Zheng et al.
NATURE COMMUNICATIONS
(2020)
Article
Chemistry, Physical
Kaian Sun et al.
Editorial Material
Chemistry, Physical
Sengeni Anantharaj et al.
ACS ENERGY LETTERS
(2019)
Article
Nanoscience & Nanotechnology
Lin Wang et al.
ACS APPLIED MATERIALS & INTERFACES
(2019)
Article
Chemistry, Physical
Chao Huang et al.
Article
Chemistry, Physical
Jieun Yang et al.
Article
Materials Science, Multidisciplinary
Danni Su et al.
NPG ASIA MATERIALS
(2019)
Review
Chemistry, Physical
Xiang Peng et al.
SUSTAINABLE ENERGY & FUELS
(2019)
Article
Chemistry, Physical
Mingjie Zang et al.
Article
Chemistry, Multidisciplinary
Guixiang Li et al.
ADVANCED FUNCTIONAL MATERIALS
(2018)
Review
Chemistry, Physical
Ning Han et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
Article
Chemistry, Multidisciplinary
Sayyar Ali Shah et al.
ADVANCED MATERIALS INTERFACES
(2018)
Article
Chemistry, Physical
Zexia Zhang et al.
ACS APPLIED ENERGY MATERIALS
(2018)
Article
Multidisciplinary Sciences
Lili Zhu et al.
NATURE COMMUNICATIONS
(2016)
Article
Chemistry, Physical
Jiyicheng Qiu et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2016)
Article
Electrochemistry
JK Norskov et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2005)
