首页|Enhanced hydrogen evolution performance by 3D ordered macroporous Ru-CoP@NC electrocatalysts

Enhanced hydrogen evolution performance by 3D ordered macroporous Ru-CoP@NC electrocatalysts

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Electrocatalytic water splitting coupled with sustainable energies is identified as an environmentally friendly and renewable strategy to generate high-quality hydrogen for the fuel cells.However,the main challenge is to develop high performance,low cost and chemically stable electrocatalysts to decline the energy barriers and enhance the sluggish kinetics of hydrogen evolution reac-tion(HER).Herein,a three-dimensional hierarchically ordered macroporous Ru-CoP@NC electrocatalyst(3DOM Ru-CoP@NC)derived from ordered macro-microporous metal-organic frameworks has been prepared using the precursor@template and double-solvent methods.The prepared 3DOM Ru-CoP@NC catalyst exhibits an overpotential of 15 mV(j=10 mA·cm-2)and a reaction Tafel slope of 38 mV.dec-1 in alkaline electrolyte,which are superior to commercial Pt@C catalyst.Additionally,the overpotential and reaction Tafel slope of this catalyst in acidic media are 45 mV and 50 mV·dec-1,respectively.The outstanding HER activities of 3DOM Ru-CoP@NC catalysts are ascribed to the 3D highly interconnected-reticular nanospaces that can increase effective reaction active sites.The N doped carbon framework improves the electronic properties and conductivity.Moreover,the strong interaction of Ru and CoP nanoparticles also boosts the HER process.These results indicate that 3DOM Ru-CoP@NC catalysts with high catalytic activities have a broad application prospect in the future.

Hydrogen evolution reactionTemplate method3D ordered macroporousRu-CoP@NC

Chen-Chen Zhang、Sheng Wei、Li-Xian Sun、Yi-Fang Ouyang、Fen Xu、Hai-Liang Chu、Hong-Ge Pan、Li-Xin Chen、Xue-Zhang Xiao

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School of Material Science and Engineering,Guilin University of Electronic Technology,Guilin 541004,China

School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China

Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,Guangdong,China

Institute of Science and Technology for New Energy,Xi'an Technological University,Xi'an 710021,China

School of Materials Science and Engineering,Zhejiang University,Hangzhou 310058,China

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National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaScientific Research and Technology Development Program of GuangxiScientific Research and Technology Development Program of GuangxiScientific Research and Technology Development Program of GuangxiScientific Research and Technology Development Program of GuangxiScientific Research and Technology Development Program of GuangxiNational Natural Science Foundation of Guangxi ProvinceNational Natural Science Foundation of Guangxi ProvinceNational Natural Science Foundation of Guangxi ProvinceNational Natural Science Foundation of Guangxi ProvinceScientific Research and Technology Development Program of GuilinScientific Research and Technology Development Program of GuilinGuangxi Bagui Scholar Foundation,Guilin Lijiang Scholar FoundationGuangxi Collaborative Innovation Centre of Structure and Property for New Energy and MaterialsGuangxi Advanced Functional Materials Foundation and Application Talents Small Highlands and Chinesisch-Deutsche Kooperationsgru

U20A20237523712185186300552271205518710655197106852101245AA19182014AD17195073AA17202030-1AB212200272021AB 170452021GXNSFBA0750572018GXNSFDA2810512014GXNSFAA1184012013GXNSFBA01924420210102-420210216-1GZ1528

2024

10.1007/s12598-023-02494-8

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(3)
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