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

Chen-Chen Zhang ¹Sheng Wei ²Li-Xian Sun ³Yi-Fang Ouyang ⁴Fen Xu ³Hai-Liang Chu ³Hong-Ge Pan ⁵Li-Xin Chen ⁶Xue-Zhang Xiao⁶

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作者信息

1. 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
2. Shenzhen Institute of Advanced Technology,Chinese Academy of Sciences,Shenzhen 518055,Guangdong,China
3. School of Material Science and Engineering,Guilin University of Electronic Technology,Guilin 541004,China
4. School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China
5. Institute of Science and Technology for New Energy,Xi'an Technological University,Xi'an 710021,China
6. School of Materials Science and Engineering,Zhejiang University,Hangzhou 310058,China
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Abstract

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.

Key words

Hydrogen evolution reaction/Template method/3D ordered macroporous/Ru-CoP@NC

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基金项目

National Natural Science Foundation of China(U20A20237)

National Natural Science Foundation of China(52371218)

National Natural Science Foundation of China(51863005)

National Natural Science Foundation of China(52271205)

National Natural Science Foundation of China(51871065)

National Natural Science Foundation of China(51971068)

National Natural Science Foundation of China(52101245)

Scientific Research and Technology Development Program of Guangxi(AA19182014)

Scientific Research and Technology Development Program of Guangxi(AD17195073)

Scientific Research and Technology Development Program of Guangxi(AA17202030-1)

Scientific Research and Technology Development Program of Guangxi(AB21220027)

Scientific Research and Technology Development Program of Guangxi(2021AB 17045)

National Natural Science Foundation of Guangxi Province(2021GXNSFBA075057)

National Natural Science Foundation of Guangxi Province(2018GXNSFDA281051)

National Natural Science Foundation of Guangxi Province(2014GXNSFAA118401)

National Natural Science Foundation of Guangxi Province(2013GXNSFBA019244)

Scientific Research and Technology Development Program of Guilin(20210102-4)

Scientific Research and Technology Development Program of Guilin(20210216-1)

Guangxi Bagui Scholar Foundation,Guilin Lijiang Scholar Foundation()

Guangxi Collaborative Innovation Centre of Structure and Property for New Energy and Materials()

Guangxi Advanced Functional Materials Foundation and Application Talents Small Highlands and Chinesisch-Deutsche Kooperationsgru(GZ1528)

出版年

2024

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

参考文献量55

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