Electrochemical Surface Restructuring of Phosphorus-Doped Carbon@MoP Electrocatalysts for Hydrogen Evolution

• DOI: 10.1007/s40820-021-00737-w
• Publication Date: 2021-10-21T17:02:21Z
• Authors: Huimin Jiang; Liting Yan; Shuo Zhang; Yanchao Zhao; Xue Yang; Yameng Wang; Jianxing Shen; Xuebo Zhao; Lianzhou Wang
• Keywords: Carbon fibers; Electronegativity

The hydrogen evolution reaction (HER) through electrocatalysis is promising for the production of clean fuel. However, designing structure catalysts, controlling their electronic properties, and manipulating catalytic sites are a significant challenge in this field. Here, we propose an electrochemical surface restructuring strategy to design synergistically interactive phosphorus-doped carbon@MoP electrocatalysts HER. A simple cycling method developed tune thickness carbon layers that cover on MoP core, which significantly influences HER performance. Experimental investigations theoretical calculations indicate inactive can be removed cycling, leading close bond between few coated graphene. electrons donated by core enhance adhesion electronegativity layers; negatively charged act as active surface. electrochemically induced optimization surface/interface structures promotes Using endows catalyst with excellent activity terms both acidic alkaline environments (current density 10 mA cm-2 at low overpotentials, 68 mV 0.5 M H2SO4 67 1.0 KOH).