TY - JOUR
T1 - Electron-Doped 1T-MoS2 via Interface Engineering for Enhanced Electrocatalytic Hydrogen Evolution
AU - Liu, Qin
AU - Fang, Qi
AU - Chu, Wangsheng
AU - Wan, Yangyang
AU - Li, Xiuling
AU - Xu, Weiyu
AU - Habib, Muhammad
AU - Tao, Shi
AU - Zhou, Yu
AU - Liu, Daobin
AU - Xiang, Ting
AU - Khalil, Adnan
AU - Wu, Xiaojun
AU - Chhowalla, Manishkumar
AU - Ajayan, Pulickel M.
AU - Song, Li
N1 - Funding Information:
We acknowledge the financial support of the 973 (2014CB848900) Program, the NSFC (11375198, U1532112, 11574280, 11605201), Strategic Priority Research Program of CAS (XDB01020300), China Postdoctoral Science Foundation (2017M612105), and National Postdoctoral Program for Innovative Talents (BX201600141). L.S. thanks the recruitment program of global experts, the CAS Hundred Talent Program. We thank the Beijing Synchrotron Radiation Facility (1W1B and soft-X-ray Endstation, BSRF), the Shanghai Synchrotron Radiation Facility (14W1, SSRF), and the Supercomputer Centers (USTCSCC, SCCAS, Tianjin and Shanghai) for help in characterizations.
PY - 2017/6/13
Y1 - 2017/6/13
N2 - Designing advanced electrocatalysts for hydrogen evolution reaction is of far-reaching significance. Active sites and conductivity play vital roles in such a process. Herein, we demonstrate a heteronanostructure for hydrogen evolution reaction, which consists of metallic 1T-MoS2 nanopatches grown on the surface of flexible single-walled carbon nanotube (1T-MoS2/SWNT) films. The simulated deformation charge density of the interface shows that 0.924 electron can be transferred from SWNT to 1T-MoS2, which weakens the absorption energy of H atom on electron-doped 1T-MoS2, resulting in superior electrocatalytic performance. The electron doping effect via interface engineering renders this heteronanostructure material outstanding hydrogen evolution reaction (HER) activity with initial overpotential as small as approximately 40 mV, a low Tafel slope of 36 mV/dec, 108 mV for 10 mA/cm2, and excellent stability. We propose that such interface engineering could be widely used to develop new catalysts for energy conversion application.
AB - Designing advanced electrocatalysts for hydrogen evolution reaction is of far-reaching significance. Active sites and conductivity play vital roles in such a process. Herein, we demonstrate a heteronanostructure for hydrogen evolution reaction, which consists of metallic 1T-MoS2 nanopatches grown on the surface of flexible single-walled carbon nanotube (1T-MoS2/SWNT) films. The simulated deformation charge density of the interface shows that 0.924 electron can be transferred from SWNT to 1T-MoS2, which weakens the absorption energy of H atom on electron-doped 1T-MoS2, resulting in superior electrocatalytic performance. The electron doping effect via interface engineering renders this heteronanostructure material outstanding hydrogen evolution reaction (HER) activity with initial overpotential as small as approximately 40 mV, a low Tafel slope of 36 mV/dec, 108 mV for 10 mA/cm2, and excellent stability. We propose that such interface engineering could be widely used to develop new catalysts for energy conversion application.
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U2 - 10.1021/acs.chemmater.7b00446
DO - 10.1021/acs.chemmater.7b00446
M3 - Article
AN - SCOPUS:85020719663
VL - 29
SP - 4738
EP - 4744
JO - Chemistry of Materials
JF - Chemistry of Materials
SN - 0897-4756
IS - 11
ER -