期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2019
卷号：252
期号：2
页码：1-5
DOI：10.1088/1755-1315/252/2/022136
出版社：IOP Publishing
摘要：Earth-abundant MoS2 has drawn continuous attentions in many fields, especially hydrogen evolution reaction (HER), which has been regarded as an effective technology for renewable energy. However, its activity is limited by edge sites, to the disadvantage of atomic economy. Herein, combination with theoretical calculation, we propose that rare-earth element (Ce, La, and Tb) synergy with defect can optimize bulk site of MoS2 for HER. Furthermore, self-supporting electrode was designed for integrating the optimized activity site, leading to an excellent HER performance. Compared to La, Tb, and pristine MoS2, the Ce-based MoS2 synergy with defect has a better activity with an overpotential of 165 mV to achieve 100 mA cm−2, close to the state-of-the-art noble metal Pt.
