Other formats:
BibTeX
LaTeX
RIS
@article{1752485, author = {Zhang, X. and Li, H. and Yang, H. and Xie, F. and Yuan, Z.H. and Zajíčková, Lenka and Li, W.J.}, article_location = {WEINHEIM}, article_number = {15}, doi = {http://dx.doi.org/10.1002/celc.202000745}, keywords = {molybdenum disulfide; ionic liquid; 1T phase; phase engineering; electrocatalytic hydrogen evolution}, language = {eng}, issn = {2196-0216}, journal = {ChemElectroChem}, title = {Phase-Engineering of 1T/2H Molybdenum Disulfide by Using Ionic Liquid for Enhanced Electrocatalytic Hydrogen Evolution}, url = {https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/celc.202000745}, volume = {7}, year = {2020} }
TY - JOUR ID - 1752485 AU - Zhang, X. - Li, H. - Yang, H. - Xie, F. - Yuan, Z.H. - Zajíčková, Lenka - Li, W.J. PY - 2020 TI - Phase-Engineering of 1T/2H Molybdenum Disulfide by Using Ionic Liquid for Enhanced Electrocatalytic Hydrogen Evolution JF - ChemElectroChem VL - 7 IS - 15 SP - 3347-3352 EP - 3347-3352 PB - WILEY-V C H VERLAG GMBH SN - 21960216 KW - molybdenum disulfide KW - ionic liquid KW - 1T phase KW - phase engineering KW - electrocatalytic hydrogen evolution UR - https://chemistry-europe.onlinelibrary.wiley.com/doi/full/10.1002/celc.202000745 N2 - Two-dimensional (2D) molybdenum disulfide (MoS2) has been regarded as an attractive non-precious-metal electrocatalyst for the hydrogen evolution reaction (HER). Engineering the crystal phase of MoS(2)to activate the basal planes/edges and simultaneously improve the electronic conductivity is currently an effective strategy for enhancing its HER activity. Herein, we report a facile and efficient hydrothermal route to prepare 1T/2H-MoS(2)catalysts using ionic liquid (N-butyl pyridinium bromide, [BPy]Br) as a structure-directing agent, where the large steric hindrance of [BPy]Br and the mutual pi-stacking interaction induce the phase transition of MoS(2)from 2H to the 1T phase. By adding a suitable amount of [BPy]Br in the reaction system, the portion of the 1T phase in 1T/2H-MoS(2)was increased, which can expose more active sites on its basal planes/edges as well as facilitate charge transfer for the HER. Consequently, 1T/2H-MoS(2)with the 1T portion of 91.9 % exhibits a significantly enhanced HER activity compared to that of the MoS(2)synthesized without the aid of [BPy]Br, in terms of a lower Tafel slope of 59 mV dec(-1). This synthesis strategy provides valuable guidance for designing the phase structure of MoS2-based electrocatalysts to achieve high HER efficiency. ER -
ZHANG, X., H. LI, H. YANG, F. XIE, Z.H. YUAN, Lenka ZAJÍČKOVÁ and W.J. LI. Phase-Engineering of 1T/2H Molybdenum Disulfide by Using Ionic Liquid for Enhanced Electrocatalytic Hydrogen Evolution. \textit{ChemElectroChem}. WEINHEIM: WILEY-V C H VERLAG GMBH, 2020, vol.~7, No~15, p.~3347-3352. ISSN~2196-0216. Available from: https://dx.doi.org/10.1002/celc.202000745.
|