Boundary activated hydrogen evolution reaction on monolayer MoS2

Jianqi Zhu, Zhi-Chang Wang, Huijia Dai, Qinqin Wang, Rong Yang (), Hua Yu, Mengzhou Liao, Jing Zhang, Wei Chen, Zheng Wei, Na Li, Luojun Du, Dongxia Shi, Wenlong Wang, Lixin Zhang (), Ying Jiang () and Guangyu Zhang ()
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Jianqi Zhu: Chinese Academy of Sciences
Zhi-Chang Wang: Peking University
Huijia Dai: Nankai University
Qinqin Wang: Chinese Academy of Sciences
Rong Yang: Chinese Academy of Sciences
Hua Yu: Chinese Academy of Sciences
Mengzhou Liao: Chinese Academy of Sciences
Jing Zhang: Chinese Academy of Sciences
Wei Chen: Chinese Academy of Sciences
Zheng Wei: Chinese Academy of Sciences
Na Li: Chinese Academy of Sciences
Luojun Du: Chinese Academy of Sciences
Dongxia Shi: Chinese Academy of Sciences
Wenlong Wang: Chinese Academy of Sciences
Lixin Zhang: Nankai University
Ying Jiang: Peking University
Guangyu Zhang: Chinese Academy of Sciences

Nature Communications, 2019, vol. 10, issue 1, 1-7

Abstract: Abstract Recently, monolayer molybdenum disulphide (MoS2) has emerged as a promising and non–precious electrocatalyst for hydrogen evolution reaction. However, its performance is largely limited by the low density and poor reactivity of active sites within its basal plane. Here, we report that domain boundaries in the basal plane of monolayer MoS2 can greatly enhance its hydrogen evolution reaction performance by serving as active sites. Two types of effective domain boundaries, the 2H-2H domain boundaries and the 2H-1T phase boundaries, were investigated. Superior hydrogen evolution reaction catalytic activity, long-term stability and universality in both acidic and alkaline conditions were achieved based on a multi-hierarchy design of these two types of domain boundaries. We further demonstrate that such superior catalysts are feasible at a large scale by applying this multi-hierarchy design of domain boundaries to wafer-scale monolayer MoS2 films.

Date: 2019
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DOI: 10.1038/s41467-019-09269-9

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