Related references
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Article
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Jin-Tao Ren et al.
Summary: Heterogeneous electrocatalysis relies on the surface electronic states of active sites. Modulating the surface charge state of electrocatalysts can enhance their performance. In this study, exceptional HOR and HER activities were achieved by coupling metal oxides with Ni, resulting in improved stability and efficiency of hydrogen electrocatalysts.
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Jin-Tao Ren et al.
Summary: A new integrated device for solar hydrogen production was developed, using rechargeable zinc-air battery as energy storage and alkaline water electrolyzer as the H-2 production terminal. Highly active FeNi phosphide-carbon hybrid materials were employed as advanced electrode catalysts to improve device efficiency. The device demonstrated excellent stability and performance, showing prospects for low-cost and uninterrupted solar hydrogen production.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
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Chemistry, Physical
Shucong Zhang et al.
Summary: Researchers have successfully integrated the dual functions of hydrazine oxidation reaction and hydrogen evolution reaction by fabricating a heterogeneous nanowire array consisting of CoP and N-doped Ni5P4 on carbon fiber paper (N-Ni5P4@CoP/CFP), leading to efficient and energy-saving hydrogen production.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
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Wanli Liang et al.
Summary: Hydrogen, as an efficient energy alternative, can be produced from seawater through electrolysis using offshore wind power. In this study, nickel-doped tungsten oxide (Ni-WOx@NF) was prepared to enhance hydrogen production from seawater. The amount of Ni doping was found to be directly related to the activity of the hydrogen evolution reaction. Notably, Ni-WOx@NF exhibited a low overpotential of 45.69 mV and maintained stability for 120 hours in alkaline seawater. Theoretical calculations further confirmed the enhanced activity of the hydrogen evolution reaction due to Ni doping. This work highlights the potential of nickel-doped tungsten oxide as an efficient and corrosion-resistant catalyst for hydrogen production in alkaline seawater.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
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Ya-Nan Zhou et al.
Summary: A unique Co(OH)(NO3) (CoNH) material is used to achieve oriented atom substitution and vacancy generation for boosting electrocatalytic overall water splitting (OWS) activity. The controlled atom substitutional doping and vacancies modulate the electron arrangement, chemical environment, and adsorption capability of the host materials. This research sheds light on accurate atom incorporation and vacancy engineering, providing a deeper understanding of the structure-composition-property relationship.
CHEMICAL ENGINEERING JOURNAL
(2023)
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Ding Chen et al.
Summary: Efficient and stable low-cost catalysts are lacking for industrial water electrolysis. This work demonstrates the dynamic microstructure manipulation of bimetallic phosphide NiCoP, which enables efficient utilization of active sites and stability as required by industry.
ADVANCED ENERGY MATERIALS
(2023)
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Lei Chen et al.
Advanced Energy Materials
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Nanoscience & Nanotechnology
Hao-Yu Wang et al.
Summary: Through electrochemical measurements, characterizations, and density functional theory calculations, we demonstrate the impressive electrocatalytic performance of P/Fe-doped NiSe2 nanosheets for hydrazine-assisted water electrolysis and hydrazine oxidation reaction. The specific effect of P doping on the kinetics of the hydrazine oxidation reaction is investigated, providing insights for rational design of bifunctional electrocatalysts for hydrogen production.
NANO-MICRO LETTERS
(2023)
Article
Chemistry, Physical
Yi-Wen Dong et al.
Summary: In this study, a CoO@FeBTC/NF p-n heterojunction structure was prepared by first preparing cobalt oxide (CoO) on nickel foam (NF) and then wrapping it with FeBTC synthesized by ligating isophthalic acid (BTC) with iron ions by electrodeposition. The catalyst only requires 255 mV overpotential to reach a current density of 100 mA cm-2 and can maintain long-term stability at high current densities. This study provides a convenient and efficient approach for the control design of the electronic structure of MOF, leading to a more efficient electrocatalytic process.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
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Yi-Wen Dong et al.
Summary: Trace Mn doping strategy is used to enhance the built-in electric field (BIEF) of FeBTC/NIF, leading to the preparation of Mn-FeBTC/NIF with excellent photoelectric coupling catalytic capability. The elevated BIEF accelerates charge transport and improves catalytic activity. Additionally, the addition of Mn improves the energy band structure and enhances the photocatalytic performance, providing new ideas for increasing the BIEF of heterojunction materials.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
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Jin-Tao Ren et al.
Summary: In this research, a heterojunction (Ni2P-NiMoOx/NF) was created by coupling crystalline Ni(2)P clusters with an amorphous NiMoOx nanorod support on a nickel foam substrate, which enhances mass/charge transfer, tunes energy barriers, and improves reaction kinetics. The Ni2P-NiMoOx/NF heterojunction exhibits ultralow overpotentials for the hydrogen evolution reaction and superior performance in the oxygen evolution reaction. Besides, it achieves high current densities at low cell voltages and maintains stable electrolysis for a long time under industrial testing.
Article
Engineering, Environmental
Hui-Min Yang et al.
Summary: In this study, a bifunctional electrocatalyst Ni(OH)(2)/Ni2P/NF was successfully synthesized on nickel foam, which exhibited impressive electrocatalytic activities for both HER and HzOR. The interfacial heterogeneous structure of Ni(OH)(2)/Ni2P/NF promoted the kinetics of the two reactions. The intermittent hydrazine-assisted water electrolysis system was proposed as a potential approach for hydrazine sewage purification and energy-saving hydrogen production.
CHEMICAL ENGINEERING JOURNAL
(2023)
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Jiawei Zhu et al.
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INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
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Xipeng Tong et al.
Summary: Insufficient active sites and weak vertical conduction limit electrocatalytic HER for transition-metal dichalcogenides. A spiral MoTe2 model was proposed to address these issues, optimizing vertical conduction through screw dislocation lines between layers. Theoretical calculations showed that spiral structures near the edge easily formed Te vacancies, providing extra active sites for high HER activity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
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Xin Ren et al.
Summary: In this study, novel CoS/Nb2O5 heterojunctions were constructed by loading CoS cocatalyst on the surface of Nb2O5 nanosheets, significantly improving the photocatalytic hydrogen evolution rate. Femtosecond-resolved transient absorption spectroscopy results showed that the charge carrier lifetime in the CoS/Nb2O5 heterojunctions was drastically shortened, indicating a rapid charge transfer process.
CHINESE CHEMICAL LETTERS
(2022)
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Chemistry, Physical
Yao Kang et al.
Summary: This study presents a simple method to activate surface reconstruction on Ni(OH)(2) by incorporating F anions, leading to enhanced oxygen evolution reaction (OER) activity. Experimental results show that the incorporation of F ions facilitates surface reconstruction and the transformation of Ni(OH)(2) into a mesoporous and amorphous F-NiOOH layer.
Article
Chemistry, Physical
Changliang Guo et al.
Summary: In this study, a high-efficiency photoreduction catalyst was successfully synthesized by in-situ growing a layer of flaky nickel chromium layered double hydroxides nanosheets on carbon nitride hexagonal tube. The resulting tube-flakes heterostructure showed significantly enhanced hydrogen evolution efficiency.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
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Qunlei Wen et al.
Summary: In this study, we propose a method of manipulating the catalyst-electrolyte interface to enhance alkaline hydrogen evolution activity by introducing local force fields through surface hydroxyl groups. We show that the local hydrogen bond induced by the surface hydroxyl group can drag H2O molecules across the inner Helmholtz plane (IHP) to continuously supply reactants to catalytic sites. Additionally, the hydroxyl group coupled with the Ni/Ni3C heterostructure lowers the water dissociation energy by polarization effects. As a result, hydroxyl-rich catalysts exhibit higher activity than Pt/C at high current density in alkaline medium.
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Hao-Yu Wang et al.
Summary: In this study, a seawater electrolysis catalyst with high activity and stability was developed for efficient hydrogen and oxygen production. It showed impressive electrocatalytic performance and long-term stability in both seawater and saline water.
JOURNAL OF ENERGY CHEMISTRY
(2022)
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Huawei Bai et al.
Summary: Transition metal phosphides (TMPs) have attracted attention in electrocatalytic hydrogen production due to their multiple active sites and adjustable structures. However, the catalytic performance of pure TMPs in the hydrogen evolution reaction (HER) is not ideal. Atom doping engineering has the potential to enhance the kinetics of catalytic reactions by adjusting the electronic structure and Gibbs free energy. This review examines previous work on atom doping engineering, including the activity origin of doped TMPs, doping materials, methods, and the resulting HER properties.
ELECTROCHEMICAL ENERGY REVIEWS
(2022)
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Jianze Zhang et al.
Summary: Regulating charge distribution through heterostructure engineering is an effective approach for achieving efficient alkaline water electrolysis. In this study, a Fe-doped Ni phosphides/Ni sulfide p-p heterojunction electrode was constructed on nickel foam, which exhibited enhanced conductivity and catalytic activity due to the built-in electric field and modified electronic properties at the interface. The designed NiFe-PS electrode demonstrated excellent oxygen evolution reaction (OER) performance with low overpotentials and high stability, attributed to the rational electronic structure modulation and the robust phosphide layer preventing oxidation.
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Wenhao Liu et al.
Summary: An amorphous WO3/crystalline CoP heterostructure electrocatalyst was constructed through a two-step hydrothermal method and low-temperature phosphatization, displaying excellent stability and efficient hydrogen evolution activity. This study provides a new approach for constructing efficient catalysts for hydrogen generation.
ACS APPLIED ENERGY MATERIALS
(2022)
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Xin Zhao et al.
Summary: This review summarizes the recent progress in utilizing built-in electric fields (BIEFs) to overcome the sluggish kinetics of electrocatalytic reactions. The construction strategies and characterization methods of BIEFs are summarized. The latest overviews of BIEF engineering in electrocatalysis, with a focus on electron structure optimization and reaction microenvironment modulation, are analyzed and discussed in detail. The challenges and perspectives of BIEF engineering are proposed.
Review
Chemistry, Physical
Haneul Jin et al.
Summary: Long-term catalyst stability is crucial for the commercialization of hydrogen generation through electrocatalytic water-splitting. Current research focuses on enhancing electrode activity, but this review highlights the importance of catalyst stability and outlines strategies for improving long-term performance.
ADVANCED ENERGY MATERIALS
(2021)
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Chemistry, Multidisciplinary
Menglei Yuan et al.
Summary: The novel Mott-Schottky Bi-BiVO4 heterostructures exhibit remarkable urea yield rate and Faradaic efficiency by facilitating targeted activation of CO2 and N-2 molecules, effectively suppressing CO poisoning and endothermic intermediates, ensuring the desired exothermic coupling reaction.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Harish Reddy Inta et al.
Summary: In alkaline media, Ni0.85Se/MoSe2 interfacial structure exhibits superior hydrogen evolution reaction activity, attributed to the high density of active sites and efficient water dissociation process which promote reaction rate.
ACS APPLIED ENERGY MATERIALS
(2021)
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Huan Yang et al.
Summary: Activating basal plane inert sites enhances conductivity and catalytic capability of MoTe2 for hydrogen evolution, resulting in reduced overpotential.
Article
Chemistry, Physical
Sibo Chen et al.
Summary: A noble-metal-free co-catalyst CuNi@C=O with higher photocatalytic H2 evolution rate than Pt co-catalyst was designed and synthesized, showing that the C=O functional groups on the carbon layer surface modulated the work function of CuNi alloy for better hydrogen evolution performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
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Xiaodeng Wang et al.
Summary: The development of a metal-nonmetallic co-doping strategy to optimize the electronic environment and regulate the adsorption site of Ni2P has significantly improved the kinetics of alkaline hydrogen evolution reaction. The synergistic effect of co-doping Ru and S has led to lower overpotential and better HER activity, showing promise for preparing efficient and stable alkaline HER electrocatalysts.
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