One-step synthesis of self-supporting porous Cu81(Ni,Co)19 intermetallic catalysts for hydrogen evolution reaction

Wang, Can; Zou, Peng; Xu, Wei; Zhang, Yan; Huo, Juntao; Wang, Jun-Qiang; Liu, Yang; Qin, Chunling

doi:10.1016/j.jallcom.2024.174790

Journal of Alloys and Compounds

2024

DOI: 10.1016/j.jallcom.2024.174790

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One-step synthesis of self-supporting porous Cu81(Ni,Co)19 intermetallic catalysts for hydrogen evolution reaction

Can Wang,

Peng Zou,

Wei Xu

et al.

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2024

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Electronic-Structure-Modulated Cu,Co-Coanchored N-Doped Nanocarbon as a Difunctional Electrocatalyst for Hydrogen Evolution and Oxygen Reduction Reactions

Cao,

Liu,

Huang

et al. 2024

Molecules

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To alleviate the problems of environmental pollution and energy crisis, aggressive development of clean and alternative energy technologies, in particular, water splitting, metal–air batteries, and fuel cells involving two key half reactions comprising hydrogen evolution reaction (HER) and oxygen reduction (ORR), is crucial. In this work, an innovative hybrid comprising heterogeneous Cu/Co bimetallic nanoparticles homogeneously dispersed on a nitrogen-doped carbon layer (Cu/Co/NC) was constructed as a bifunctional electrocatalyst toward HER and ORR via a hydrothermal reaction along with post-solid-phase sintering technique. Thanks to the interfacial coupling and electronic synergism between the Cu and Co bimetallic nanoparticles, the Cu/Co/NC catalyst showed improved catalytic ORR activity with a half-wave potential of 0.865 V and an excellent stability of more than 30 h, even compared to 20 wt% Pt/C. The Cu/Co/NC catalyst also exhibited excellent HER catalytic performance with an overpotential of below 149 mV at 10 mA/cm2 and long-term operation for over 30 h.

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Electronic-Structure-Modulated Cu,Co-Coanchored N-Doped Nanocarbon as a Difunctional Electrocatalyst for Hydrogen Evolution and Oxygen Reduction Reactions

Cao,

Liu,

Huang

et al. 2024

Molecules

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One-step synthesis of self-supporting porous Cu81(Ni,Co)19 intermetallic catalysts for hydrogen evolution reaction

Cited by 1 publication

References 47 publications

Electronic-Structure-Modulated Cu,Co-Coanchored N-Doped Nanocarbon as a Difunctional Electrocatalyst for Hydrogen Evolution and Oxygen Reduction Reactions

Electronic-Structure-Modulated Cu,Co-Coanchored N-Doped Nanocarbon as a Difunctional Electrocatalyst for Hydrogen Evolution and Oxygen Reduction Reactions

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