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ru doping triggering reconstruction of cobalt phosphide for coupling glycerol electrooxidation with seawater electrolysis

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Journal of Energy Chemistry 2025年第1期100卷 317-326页

作者： Binglu Deng Jie Shen Jinxing Lu Chuqiang Huang Zhuoyuan Chen Feng Peng Yunpeng Liu School of Materials Science and Hydrogen Energy Foshan University School of Chemistry and Chemical Engineering Guangzhou University Guangdong Key Laboratory for Hydrogen Energy Technologies

Seawater electrolysis is a promising approach for sustainable energy without relying on precious ***,the large-scale seawater electrolysis is hindered by low catalytic efficiency and severe anode corrosion caused by the harmful *** contrast to the oxygen evolution reaction （OER）and chlorin ion oxidation reaction （ClOR）,glycerol oxidation reaction （GOR） is more thermodynamically and kinetically favorable ***,a ru doping cobalt phosphide （ru-CoP2） is proposed as a robust bifunctional electrocatalyst for seawater electrolysis and GOR,for the concurrent productions of hydrogen and value-added *** in situ and ex situ characterization analyses demonstrated that ru doping featured in the dynamic reconstruction process from ru-CoP2to ru-CoOOH,accounting for the superior GOR *** coupling GOR with hydrogen evolution was realized by employing ru-CoP2as both anode and cathode,requiring only a low voltage of 1.43 V at 100 mA cm-2,which was 250 m V lower than that in alkaline *** work guides the design of bifunctional electrocatalysts for energy-efficient seawater electrolysis coupled with biomass resource upcycling.

关键词： Glycerol electrooxidation Hydrogen evolution ru doping Cobalt phosphide Bifunctional electrocatalysts

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Trace ruthenium promoted dual-reconstruction of CoFeP@C/NF for activating overall water splitting performance beyond precious-metals

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Nano Research 2023年第8期16卷 10810-10821页

作者： Jinhong Ren Jie Liu Yunmei Du Shuangshuang Li Mengmeng Wang Bin Li Bo Yang Lei Wang Yanru Liu College of Environment and Safety Engineering Qingdao University of Science and TechnologyQingdao 266042China College of Chemistry and Molecular Engineering Qingdao University of Science and TechnologyKey Laboratory of Eco-chemical EngineeringKey Laboratory of Optic-electric Sensing and Analytical Chemistry of Life ScienceTaishan Scholar Advantage and Characteristic Discipline Team of Eco Chemical Process and TechnologyQingdao 266042China College of Materials Science and Engineering Qingdao University of Science and TechnologyQingdao 266042China

At present,ru dopants mainly enhance electrocatalytic performance by inducing strain,vacancy,local electron difference,and ***,this work innovatively proposes that trace ru atoms induce dual-reconstruction of phosphide by regulating the electronic configuration and proportion of Co–P/Co–O species,and ultimately activate superb electrocatalytic ***,ru-CoFeP@C/nickel foam(NF)is reconstructed to generate hydrophilic Co(OH)_(2)nanosheets during the hydrogen evolution reaction(HER)process,further accelerating the alkaline HER kinetics of *** the as-formed CoOOH during the oxygen evolution reaction(OER)process directly accelerates the oxygen overflow *** expected,the overpotential at 100 mA·cm^(−2)(η100)values of the reconstructed ru-CoFeP@C/NF are 0.104 and 0.257 V for HER and OER,which are greatly lower than that of Pt/C-NF and ruO_(2)-NF benchmarks,*** work provides guidance for the construction of highperformance catalysts for HER and OER dual *** work provides a new idea for the optimization of catalyst structure and electrocatalytic performance.

关键词： ru doping dual reconstruction overall water splitting phosphide ru-CoFeP@C/nickel foam(NF)

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