Ultrahigh hydrogen evolution performance of under-water "superaerophobic" MoS₂ nanostructured electrodes.
The adhesion of as-formed gas bubbles on the electrode surface usually impedes mass-transfer kinetics and subsequently decreases electrolysis efficiency. Here it is demonstrated that nanostructured MoS₂ films on conductive substrates show a faster hydrogen evolution reaction (HER), current increase, and a more-stable working state than their flat counterpart by significantly alleviating the adhesion of as-formed gas bubbles on the electrode. This study clearly reveals the importance of a nano-porous structure for HER, which should be general and beneficial for constructing other gas-evolution electrodes.
State Key Laboratory of Chemical Resource Engineering, P.O. Box 98, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
Zhiyi
Z
Lu
Wei
W
Zhu
Xiaoyou
X
Yu
Haichuan
H
Zhang
Yingjie
Y
Li
Xiaoming
X
Sun
Xinwei
X
Wang
Hao
H
Wang
Jingming
J
Wang
Jun
J
Luo
Xiaodong
X
Lei
Lei
L
Jiang
MoS2 nanostructured film; bubble releasing; hydrogen evolution reaction; low adhesion surface