Phase-Transformation Engineering in Cobalt Diselenide Realizing Enhanced Catalytic Activity for Hydrogen Evolution in an Alkaline Medium.
Phase-transformation engineering is successfully applied in designing an alkaline hydrogen evolution reaction (HER) electrocatalyst. Benefiting from phase-transformation engineering, which endows higher electrical conductivity, ideal water adsorption energy, and faster transformation efficiency of Hads into hydrogen, cubic-phase CoSe2 realizes an enhanced electrocatalytic activity for HER under alkaline conditions.
Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center (CAS) and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
Pengzuo
P
Chen
Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center (CAS) and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
Kun
K
Xu
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, P. R. China.
Shi
S
Tao
Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center (CAS) and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
Tianpei
T
Zhou
Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center (CAS) and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
Yun
Y
Tong
Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center (CAS) and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
Hui
H
Ding
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, P. R. China.
Lidong
L
Zhang
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, Anhui, 230029, P. R. China.
Wangsheng
W
Chu
Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center (CAS) and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China. czwu@ustc.edu.cn.
Changzheng
C
Wu
Hefei National Laboratory for Physical Science at the Microscale, CAS Center for Excellence in Nanoscience, Hefei Science Center (CAS) and CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.
Yi
Y
Xie
3D electrode configuration; cobalt diselenide; hydrogen evolution reaction; metallic electrocatalysts; phase-transformation