Influence of the Electrostatic Interaction between a Molecular Catalyst and Semiconductor on Photocatalytic Hydrogen Evolution Activity in Cobaloxime/CdS Hybrid Systems | |
Xu, Yuxing1,2,3,4; Chen, Ruotian1,2,3,4; Li, Zhen1,2,3,4; Li, Ailong1,2,3,4; Han, Hongxian1,3,4; Li, Can1,3,4 | |
刊名 | ACS APPLIED MATERIALS & INTERFACES |
2017-07-12 | |
卷号 | 9期号:27页码:23230-23237 |
关键词 | electrostatic interaction cobaloxime cadmium sulfide (CdS) photocatalytic hydrogen evolution charge transfer |
英文摘要 | The influence of the electrostatic interaction on photocatalytic H-2 evolution activity in cobaloxime/cadmium sulfide (CdS) hybrid systems was studied by measuring the charges of the cobaloximes and the zeta potentials of CdS under different pH conditions (pHs 4-7). Cobaloxime/CdS hybrid systems may have potential as a valid model for the investigation of the electrostatic interaction between a molecular catalyst and semiconductor because the kinetics of methanol oxidation and the driving force of electron transfer from photoirradiated CdS to cobaloxime have little effect on the pH-dependent photocatalytic H-2 evolution activity. Our experimental results suggest that electrostatic repulsion between cobaloxime and CdS disfavors the electron transfer from CdS to cobaloxime and hence lowers the photocatalytic H-2 evolution activity. Whereas, electrostatic attraction favors the electron transfer process and enhances the photocatalytic H-2 evolution activity. However, an electrostatic attraction interaction that is too strong may accelerate both forward and backward electron transfer processes, which would reduce charge separation efficiency and lower photocatalytic H-2 evolution activity. |
WOS标题词 | Science & Technology ; Technology |
类目[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
研究领域[WOS] | Science & Technology - Other Topics ; Materials Science |
关键词[WOS] | AQUEOUS-SOLUTIONS ; NICKEL-CATALYST ; COBALT CATALYST ; CADMIUM-SULFIDE ; SURFACE-CHARGE ; H-2 PRODUCTION ; CO2 REDUCTION ; QUANTUM DOTS ; PK(A) VALUES ; CDSE QUANTUM |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000405764700120 |
内容类型 | 期刊论文 |
源URL | [http://cas-ir.dicp.ac.cn/handle/321008/150113] |
专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
作者单位 | 1.Dalian Natl Lab Clean Energy, Div Solar Energy, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China 4.Collaborat Innovat Ctr Chem Energy Mat iChEM, 457 Zhongshan Rd, Dalian 116023, Peoples R China |
推荐引用方式 GB/T 7714 | Xu, Yuxing,Chen, Ruotian,Li, Zhen,et al. Influence of the Electrostatic Interaction between a Molecular Catalyst and Semiconductor on Photocatalytic Hydrogen Evolution Activity in Cobaloxime/CdS Hybrid Systems[J]. ACS APPLIED MATERIALS & INTERFACES,2017,9(27):23230-23237. |
APA | Xu, Yuxing,Chen, Ruotian,Li, Zhen,Li, Ailong,Han, Hongxian,&Li, Can.(2017).Influence of the Electrostatic Interaction between a Molecular Catalyst and Semiconductor on Photocatalytic Hydrogen Evolution Activity in Cobaloxime/CdS Hybrid Systems.ACS APPLIED MATERIALS & INTERFACES,9(27),23230-23237. |
MLA | Xu, Yuxing,et al."Influence of the Electrostatic Interaction between a Molecular Catalyst and Semiconductor on Photocatalytic Hydrogen Evolution Activity in Cobaloxime/CdS Hybrid Systems".ACS APPLIED MATERIALS & INTERFACES 9.27(2017):23230-23237. |
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