NDLI: Molybdenum disulfide and Au ultrasmall nanohybrids as highly active electrocatalysts for hydrogen evolution reaction

Content Provider	Royal Society of Chemistry (RSC)
Author	Liu, Wanglian Zhang, Jinxuan Zhu, Zhiwei Du, Kuangzhou Li, Meixian Wang, Tanyuan Liu, Lu
Copyright Year	2017
Abstract	Molybdenum disulfide (MoS2) is a promising catalyst for hydrogen generation from water splitting. However, there is still a gap compared to electrocatalytic performance of Pt group metals. Herein, we propose a simple solvothermal method to prepare ultrasmall MoS2–Au nanohybrids with average diameters of 2.5 nm. The MoS2–Au nanohybrids exhibit superior HER performance with a low onset potential of 17 mV, a Tafel slope of 40 mV dec−1 and a current density of 10 mA cm−2 at an overpotential of only 66 mV. The enhanced HER catalytic activity is attributed to the doping of gold resulting in a synergistic effect between Au and MoS2, which promotes the activity of the edge sites and enhancement of conductivity. Our work has provided a new approach to synthesize hybridized MoS2 for an enhanced hydrogen evolution reaction (HER).
Starting Page	4122
Ending Page	4128
Page Count	7
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	5
Issue Number	8
Journal	Journal of Materials Chemistry A
DOI	10.1039/c6ta10385e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Tafel Molybdenum disulfide Hydrogen Water splitting Current density Overpotential Dopant
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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Molybdenum disulfide and Au ultrasmall nanohybrids as highly active electrocatalysts for hydrogen evolution reaction