Bi-axial grown amorphous MoSx bridged with oxygen on r-GO as a superior stable and efficient nonprecious catalyst for hydrogen evolution

Title
Bi-axial grown amorphous MoSx bridged with oxygen on r-GO as a superior stable and efficient nonprecious catalyst for hydrogen evolution
Authors
조성무이성호이철호윤진문엄광섭이도창조한익Thomas F. Fuller
Keywords
황화몰리브데늄; 그래핀; 수소생산; MoS3
Issue Date
2017-01
Publisher
Scientific Reports
Citation
VOL 7, 41190
Abstract
Amorphous molybdenum sulfide (MoSx) is covalently anchored to reduced graphene oxide (r-GO) via a simple one-pot reaction, thereby inducing the reduction of GO and simultaneous doping of heteroatoms on the GO. The oxygen atoms form a bridged between MoSx and GO and play a crucial role in the fine dispersion of the MoSx particles, control of planar MoSx growth, and increase of exposed active sulfur sites. This bridging leads to highly efficient (-157 mV overpotential and 41 mV/decade Tafel slope) and stable (95% versus initial activity after 1000 cycles) electrocatalyst for hydrogen evolution.
URI
http://pubs.kist.re.kr/handle/201004/66713
ISSN
2045-2322
Appears in Collections:
KIST Publication > Article
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