@article{Liu2019, 
author = {Zhengqing Liu and Xiao Zhang and Yue Gong and Qipeng Lu and Zhicheng Zhang and Hongfei Cheng and Qinglang Ma and Junze Chen and Meiting Zhao and Bo Chen and Ye Chen and Xue-Jun Wu and Pengfei Yin and Lin Gu and Yaping Du and Hua Zhang},
title = {Synthesis of MoX2 (X = Se or S) monolayers with high-concentration 1T' phase on 4H/fcc-Au nanorods for hydrogen evolution},
year = {2019},
journal = {Nano Research},
volume = {12},
number = {6},
pages = {1301-1305},
keywords = {hydrogen evolution, MoS2 monolayers, semimetallic 1Tx phase, 4H/face-centered cubic (fcc)-Au nanorods},
url = {https://www.sciopen.com/article/10.1007/s12274-018-2212-8},
doi = {10.1007/s12274-018-2212-8},
abstract = {Controlled synthesis of transition metal dichalcogenide (TMD) monolayers with unusual crystal phases has attracted increasing attention due to their promising applications in electrocatalysis. However, the facile and large-scale preparation of TMD monolayers with high-concentration unusual crystal phase still remains a challenge. Herein, we report the synthesis of MoX2 (X = Se or S) monolayers with high-concentration semimetallic 1Tx phase by using the 4H/face-centered cubic (fcc)-Au nanorod as template to form the 4H/fcc-Au@MoX2 nanocomposite. The concentrations of 1Tx phase in the prepared MoSe2 and MoS2 monolayers are up to 86% and 81%, respectively. As a proof-of-concept application, the obtained Au@MoS2 nanocomposite is used for the electrocatalytic hydrogen evolution reaction (HER) in acid medium, exhibiting excellent performance with a low overpotential of 178 mV at the current density of 10 mA/cm2, a small Tafel slope of 43.3 mV/dec, and excellent HER stability. This work paves a way for direct synthesis of TMD monolayers with high-concentration of unusual crystal phase for the electrocatalytic application.}
}