Premium
Ganoderma‐Like MoS 2 /NiS 2 with Single Platinum Atoms Doping as an Efficient and Stable Hydrogen Evolution Reaction Catalyst
Author(s) -
Guan Yongxin,
Feng Yangyang,
Wan Jing,
Yang Xiaohui,
Fang Ling,
Gu Xiao,
Liu Ruirui,
Huang Zhengyong,
Li Jian,
Luo Jun,
Li Changming,
Wang Yu
Publication year - 2018
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201800697
Subject(s) - overpotential , catalysis , platinum , materials science , doping , nanostructure , heterojunction , hydrogen , chemical engineering , nanotechnology , chemistry , optoelectronics , electrochemistry , electrode , organic chemistry , engineering
Herein, a unique ganoderma‐like MoS 2 /NiS 2 hetero‐nanostructure with isolated Pt atoms anchored is reported. This novel ganoderma‐like heterostructure can not only efficiently disperse and confine the few‐layer MoS 2 nanosheets to fully expose the edge sites of MoS 2 , and provide more opportunity to capture the Pt atoms, but also tune the electronic structure to modify the catalytic activity. Because of the favorable dispersibility and exposed large specific surface area, single Pt atoms can be easily anchored on MoS 2 nanosheets with ultrahigh loading of 1.8 at% (the highest is 1.3 at% to date). Owing to the ganoderma‐like structure and platinum atoms doping, this catalyst shows Pt‐like catalytic activity for the hydrogen evolution reaction with an ultralow overpotential of 34 mV and excellent durability of only 2% increase in overpotential for 72 h under the constant current density of 10 mA cm −2 .