文献类型：期刊文献

英文题名：One-pot synthesis of ultrafine Pt-decorated MoS2/N-doped carbon composite with sponge-like morphology for efficient hydrogen evolution reaction

作者：Li, Liang[1];Wang, Xinran[1];Li, Jinxin[1];Guo, Ying[1];Li, Xiaowei[1];Lu, Yongwei[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Lab Low Dimens Mat, Shanghai 200237, Peoples R China

年份：2021

卷号：872

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;EI(收录号：20211410166944);WOS:【SCI-EXPANDED(收录号:WOS:000647670600004)】；

语种：英文

外文关键词：Pt; MoS2; Doping; Hydrogen evolution reaction; Electrocatalysis

摘要：Ultrafine Pt-decorated interlayer-expanded MoS2/N-doped carbon composite with sponge-like morphology (Pt-MoS2/CN) has been synthesized through a one-pot pyrolysis protocol. Using PVP modified Pt colloidal as precursor not only avoids the formation of large Pt particles, but also plays an important role in the formation of highly dispersed interlayer-expanded MoS2 nanocrystalline within N-doped carbon network. The synergy between Pt nanoparticle and interlayer-expended MoS2 nanocrystalline gives rise to favorable intrinsic catalytic activity. The resulting Pt-MoS2/CN composite boosts the hydrogen evolution reaction (HER) performance to an upper level in acidic media with low overpotential (-20 mV at 10 mA cm(-2)), high exchange current density (6.24 mA cm(-2)) and much stable durability (more than 80 h). All these properties can be compared with that of commercial Pt/C catalyst. The excellent electrocatalytic performance, simple preparation and low cost make it a promising candidate for HER. (C) 2021 Elsevier B.V. All rights reserved.