Assembling 2D Ni-Co nanosheets onto Mo2C Nanorod towards Efficient Electrocatalytic Hydrogen Evolution
Xiao Zhang , Yanan Diao , Huizhu Cai , Jiancong Fang , Bingbing Chen , Mingshu Bi , Chuan Shi
Chinese Journal of Chemistry ›› 2024, Vol. 42 ›› Issue (22) : 2743 -2750.
Assembling 2D Ni-Co nanosheets onto Mo2C Nanorod towards Efficient Electrocatalytic Hydrogen Evolution
A novel electrocatalyst, Ni-Co/β-Mo 2C@C, was rationally designed to enhance the efficiency of the hydrogen evolution reaction (HER) in this work. Assembled with two-dimensional Ni-Co nanosheets onto Mo 2C nanorods coated with a thin carbon shell, the catalyst demonstrates remarkable performance, including low overpotential ( η 10 = 57 mV) and reduced Tafel slope (63 mV·dec -1) in 0.5 mol·L -1 H 2SO 4 electrolyte. This innovative design strategy provides abundant active sites and efficient electron/ion transport pathways, effectively shortening reactant diffusion distances and enhancing electrocatalytic activity. Additionally, the carbon shell coating protects the catalyst from etching and agglomeration, ensuring its durability. This work presents a promising approach for engineering highly efficient metal carbide-based HER catalysts through tailored composition and nanostructure design.
Multiscale structure / Nanorods / Molybdenum carbide / Ni-Co doping / Support-metal strong interaction / Non-noble metal electrocatalyst / Hydrogen evolution reaction / Acidic media
2024 SIOC, CAS, Shanghai, & WILEY-VCH GmbH
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