• 文献标题:   One-step fabrication of a laser-induced forward transfer graphene/CuxO nanocomposite-based electrocatalyst to promote hydrogen evolution reaction
  • 文献类型:   Article
  • 作  者:   XU D, CHAN KC, GUO HJ, ZHONG H, LU L
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF MATERIALS CHEMISTRY A
  • ISSN:   2050-7488 EI 2050-7496
  • 通讯作者地址:  
  • 被引频次:   10
  • DOI:   10.1039/d1ta01267c EA MAY 2021
  • 出版年:   2021

▎ 摘  要

Electrochemical water splitting is an attractive strategy to realize hydrogen harvesting. Exploring highly efficient electrocatalysts based on non-precious materials is of great significance to break the dilemma of using noble metal-based materials for large-scale commercial hydrogen production. Currently, studies on nano-structured non-precious electrocatalysts mainly focus on improving the catalytic efficiency and durability. However, conventional methods to synthesize these materials are generally time-consuming and complex, which badly hinder the progress for large-scale applications. Herein, in this study, an ultrasmall-sized CuxO nanoparticle immobilized on porous laser-induced forward transfer (LIFT) graphene dispersed on Ni foam was successfully fabricated via a fast one-step laser deposition method. This fabricated composite exhibited an impressive performance towards the hydrogen evolution reaction (HER) in 1 M KOH solution. A low overpotential of 149.6 mV was achieved to reach an area current density of 10 mA cm(-2), and a Tafel slope of 157 mV dec(-1) was obtained. A 10 h chronoamperometry test of the as-prepared electrode under a fixed potential showed an ignorable degradation of the HER activity. This study shows the great potential of a facile preparation method of a highly efficient and inexpensive electrocatalyst for scalable hydrogen production.