Defect Graphene as a Trifunctional Catalyst for Electrochemical Reactions.
Defects derived by the removal of heteroatoms from graphene are demonstrated, both experimentally and theoretically, to be effective for all three basic electrochemical reactions, e.g., oxygen reduction (ORR), oxygen evolution (OER), and hydrogen evolution (HER). Density function theory calculations further reveal that the different types of defects are essential for the individual electrocatalytic activity for ORR, OER, and HER, respectively.
Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan Campus, Queensland, 4111, Australia.|School of Natural Sciences, Griffith University, Queensland, 4111, Australia.
Yi
Y
Jia
Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan Campus, Queensland, 4111, Australia.|School of Natural Sciences, Griffith University, Queensland, 4111, Australia.
Longzhou
L
Zhang
School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland, 4000, Australia.
Aijun
A
Du
School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, Brisbane, Queensland, 4000, Australia.
Guoping
G
Gao
Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, AIIM Facility, University of Wollongong, Innovation Campus, Wollongong, NSW 2522, Australia.
Jun
J
Chen
Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan Campus, Queensland, 4111, Australia.|School of Natural Sciences, Griffith University, Queensland, 4111, Australia.
Xuecheng
X
Yan
School of Natural Sciences, Griffith University, Queensland, 4111, Australia.|Environmental Futures Research Institute, Griffith University, Queensland, 4111, Australia.
Christopher L
CL
Brown
Queensland Micro- and Nanotechnology Centre, Griffith University, Nathan Campus, Queensland, 4111, Australia.|School of Natural Sciences, Griffith University, Queensland, 4111, Australia.
Xiangdong
X
Yao
defects; electrocatalysts; graphene; hydrogen evolution; oxygen reduction, oxygen evolution