The vital role of reduced graphene oxide in enhanced hydrogen photoproduction with a pyrene-pendant rhodium catalyst and platinum nanoparticles
- 등재 SCIE, SCOPUS
- 발행기관 Elsevier Ltd
- 발행년도 2015
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000119184
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.carbon.2015.06.083
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
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 π-π 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. © 2015 Elsevier Ltd. All rights reserved.
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