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The vital role of reduced graphene oxide in enhanced hydrogen photoproduction with a pyrene-pendant rhodium catalyst and platinum nanoparticles

Title
The vital role of reduced graphene oxide in enhanced hydrogen photoproduction with a pyrene-pendant rhodium catalyst and platinum nanoparticles
Authors
Park, Sol JiKim, SoojinAnjong, Tikum FlorenceLee, Sung EunKim, Jinheung
Ewha Authors
김진흥
SCOPUS Author ID
김진흥scopus
Issue Date
2015
Journal Title
CARBON
ISSN
0008-6223JCR Link1873-3891JCR Link
Citation
vol. 94, pp. 448 - 454
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
A cyclopentadienyl rhodium catalyst derivatized with pyrene was used to study the effects of a reduced graphene oxide (rGO) on visible light-driven photocatalytic hydrogen production using formate and Pt nanoparticles. The pyrene-derivatized rhodium catalyst was immobilized on rGO by pi-pi stacking interactions. A tight formation of the Rh catalyst on rGO surprisingly enhanced the hydrogen production upon visible light irradiation, in contrast with the results using a thin formation of the catalyst or the unfunctionalized Rh catalyst. Our results also demonstrated that the catalytic stability of the pyrene-functionalized Rh complex dramatically increased when it was immobilized on rGO during the photocatalytic reaction cycle. RGO played a crucial role in efficiently transferring electrons from the Rh(III)-hydrides to the platinum nanoparticles. (C) 2015 Elsevier Ltd. All rights reserved.
DOI
10.1016/j.carbon.2015.06.083
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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