DICP OpenIR
学科主题物理化学
Combination of Semiconductor and Bio-Mimetic Complex in Photosystem for Photocatalytic H2 Evolution under Visible Light
Wen FY(温福宇); Zong X(宗旭); Li C(李灿)
会议名称第十三届亚洲化学会
会议日期2009-9-13
2009-09-13
会议地点China
页码131/1
部门归属五室
主办者Chinese Chemical Society
英文摘要H2 production from photocatalytic reaction which mimicking nature photosynthesis has recently attracted much attention [1,2]. Here we report a hybrid photocatalytic system which composed of semiconductor and mimetic hydrogenase (CdS/CoIII(dmgH)2pyCl) can effectively enhance the visible light-driven hydrogen producing activity. The rate of H2 evolution catalyzed by this combined catalysts is 30 times faster than that obtained merely using CdS as photocatalyst under the same conditions. More than 42 turnovers (based on CoIII(dmgH)2pyCl) can be achieved during 6 h photacatalysis. From a series of parallel experiment, the reaction mechanism is postulated to involve: 1) the production of photoinduced electron on CdS; 2) the transfer to Co complex to form reduced species CoI(dmgH)2pyCl; 3) combination with H+ and then release of H2. The process of H2 evolution for the hybrid photocatalytic system reported here is very analogic to the one for photosystem I in algae.
语种中文
文献类型会议论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/113834
专题中国科学院大连化学物理研究所
通讯作者Li C(李灿)
推荐引用方式
GB/T 7714
Wen FY,Zong X,Li C. Combination of Semiconductor and Bio-Mimetic Complex in Photosystem for Photocatalytic H2 Evolution under Visible Light[C],2009:131/1.
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