Plasma-induced transformation: a new strategy to in situ engineer MOF-derived heterointerface for high-efficiency electrochemical hydrogen evolution

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

View graph of relations

Author(s)

  • Guiyang Liu
  • Hui-Qing Peng
  • Zian Xu
  • Bin Liu

Detail(s)

Original languageEnglish
Pages (from-to)6596-6606
Journal / PublicationJournal of Materials Chemistry A
Volume10
Issue number12
Online published2 Feb 2022
Publication statusPublished - 28 Mar 2022

Abstract

High-efficiency hydrogen production using nonprecious electrocatalysts is considered a feasible solution for solving energy and environmental crises. Herein, we first develop a novel, simple, rapid, and environmentally friendly plasma-induced transformation approach to in situ engineer MOF-derived heterointerface catalyst. The plasma engineered MOF-derived Co4N-Co3O4-C has a well-defined interface structure and exhibits remarkable electrocatalytic performance for alkaline hydrogen evolution with a very low overpotential of 46 mV at 10 mA cm(-2). Theory calculation verifies that the formation of heterointerface induces electron redistribution mainly in the interface region, particularly to the side of Co4N, triggering interface Co as active sites, in which there is stronger water capture capability, decreasing the energetic barrier of water dissociation, and optimal hydrogen absorption. This work presents a feasible and ingenious strategy to design and synthesize diverse electrocatalysts with MOF-derived heterointerface.

Research Area(s)

  • BIFUNCTIONAL ELECTROCATALYST, OXYGEN VACANCIES, WATER, CO3O4, COBALT, NANOPARTICLES, NITROGEN, OXIDE, IRON

Citation Format(s)

Plasma-induced transformation: a new strategy to in situ engineer MOF-derived heterointerface for high-efficiency electrochemical hydrogen evolution. / Kong, Xin; Liu, Guiyang; Peng, Hui-Qing; Xu, Zian; Bu, Shuyu; Liu, Bin; Zhang, Wenjun.

In: Journal of Materials Chemistry A, Vol. 10, No. 12, 28.03.2022, p. 6596-6606.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review