Open Access System for Information Sharing

Login Library

 

Article
Cited 15 time in webofscience Cited 19 time in scopus
Metadata Downloads

Catalytic synergy effect of MoS2/reduced graphene oxide hybrids for a highly efficient hydrogen evolution reaction

Title
Catalytic synergy effect of MoS2/reduced graphene oxide hybrids for a highly efficient hydrogen evolution reaction
Authors
Lee, Jung EunJung, JaeminKo, Taeg YeoungKim, SujinKim, Seong-IlNah, JunghyoRyu, SunminNam, Ki TaeLee, Min Hyung
Date Issued
Jan-2017
Publisher
Royal Society of Chemistry
Abstract
Two-dimensional layered transition metal dichalcogenide (TMD) materials such as MoS2 and WS2 have received a great deal of attention as alternatives to Pt in hydrogen evolution reaction (HER) catalysts. Recently, confined synthesis of TMD nanoparticles on graphene exhibited great catalytic performance for HER, due to the presence of many active edge sites. However, the correlation of gradual electronic transition states of TMD/graphene hybrids to catalytic behavior has been rarely studied. By means of controlling only the graphene oxide (GO) content added during the solvothermal synthesis with MoS2, we have synthesized hybrids of MoS2 and reduced graphene oxide (rGO) with tunable morphology; this tuning also brought about a gradual change in the electronic states of MoS2 due to strain induced by van der Waals interaction between heterolayers. The GO content tuning gradually enhanced the HER catalytic performance of the MoS2/rGO hybrids, decreasing the Tafel slope from 82 to 48 mV per decade owing to synergistic effects of an increase of catalytically active areas, an electronic transition of MoS2, and conductivity of rGO substrates. ? 2017 The Royal Society of Chemistry.
URI
http://oasis.postech.ac.kr/handle/2014.oak/37867
ISSN
2046-2069
Article Type
Article
Citation
RSC Advances, vol. 7, no. 9, page. 5480 - 5487, 2017-01
Files in This Item:

qr_code

  • mendeley

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Related Researcher

Researcher

 RYU, SUNMIN
Div of Advanced Materials Science
Read more

Views & Downloads

Browse