A Promising Method to Fabricate Nanostructured Cu/Ni–Co Coating Electrode for Hydrogen Evolution Reaction

A Promising Method to Fabricate Nanostructured Cu/Ni–Co Coating Electrode for Hydrogen Evolution Reaction

10Wang et al. have successfully fabricated three-dimensional hierarchical nanostructured Cu/Ni–Co coating electrode via a simple two-step electroless and electro-deposition approach. In addition to characterize the morphology, structure, composition of these nanostructures, the authors have also measured the Tafel curves and Galvanostatic curves toward hydrogen evolution reaction.

It was reported that the exchange current density of the as-synthesized coating with hierarchical nanostructure was 21.9 times compared with that of flat nickel coating, according to Tafel polarization measurements. The enhanced exchange current density of the hierarchical nanostructures can be mainly ascribed to the increase of specific surface area, the nanometric “steps”, and the synergistic effect of nickel and cobalt atoms. Besides, the test of galvanostatic responses, which demonstrated the hierarchical coating also displayed good electrochemical stability.

In conclusion, this study has shown a promising method in developing new and cheap cathode electrode materials which have high catalytic activity.

Original article citation

Ning Wang and Tao Hang, “Three-Dimensional Hierarchical Nanostructured Cu/Ni–Co Coating Electrode for Hydrogen Evolution Reaction in Alkaline Media”, Nano-Micro Lett. 7(4), 347-352 (2015). doi:10.1007/s40820-015-0049-1

A Highlight from Shaotao Zhi for NMSTR.

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