IHEP OpenIR  > 多学科研究中心
Vectorial Electron Transfer for Improved Hydrogen Evolution by Mercaptopropionic-Acid-Regulated CdSe Quantum-Dots-TiO2-Ni(OH)(2) Assembly
Yu, S; Li, ZJ; Fan, XB; Li, JX; Zhan, F; Li, XB; Tao, Y; Tung, CH; Wu, LZ; Zhan F(展飞); Tao Y(陶冶)
2015
Source PublicationCHEMSUSCHEM
ISSN1864-5631
EISSN1864-564X
Volume8Issue:4Pages:642-649
SubtypeArticle
AbstractA visible-light-induced hydrogen evolution system based on a CdSe quantum dots (QDs)-TiO2-Ni(OH)(2) ternary assembly has been constructed under an ambient environment, and a bifunctional molecular linker, mercaptopropionic acid, is used to facilitate the interaction between CdSe QDs and TiO2. This hydrogen evolution system works effectively in a basic aqueous solution (pH11.0) to achieve a hydrogen evolution rate of 10.1mmolg(-1)h(-1) for the assembly and a turnover frequency of 5140h(-1) with respect to CdSe QDs (10h); the latter is comparable with the highest value reported for QD systems in an acidic environment. X-ray photoelectron spectroscopy, X-ray absorption spectroscopy, and control experiments demonstrate that Ni(OH)(2) is an efficient hydrogen evolution catalyst. In addition, inductively coupled plasma optical emission spectroscopy and the emission decay of the assembly combined with the hydrogen evolution experiments show that TiO2 functions mainly as the electron mediator; the vectorial electron transfer from CdSe QDs to TiO2 and then from TiO2 to Ni(OH)(2) enhances the efficiency for hydrogen evolution. The assembly comprises light antenna CdSe QDs, electron mediator TiO2, and catalytic Ni(OH)(2), which mimics the strategy of photosynthesis exploited in nature and takes us a step further towards artificial photosynthesis.
Keywordelectron transfer hydrogen nickel photosynthesis quantum dots
Subject AreaChemistry
DOI10.1002/cssc.201402885
Indexed BySCI ; EI
Language英语
WOS Research AreaChemistry, Multidisciplinary ; Green & Sustainable Science & Technology
WOS SubjectChemistry ; Science & Technology - Other Topics
WOS IDWOS:000349954400011
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/228274
Collection多学科研究中心
Recommended Citation
GB/T 7714
Yu, S,Li, ZJ,Fan, XB,et al. Vectorial Electron Transfer for Improved Hydrogen Evolution by Mercaptopropionic-Acid-Regulated CdSe Quantum-Dots-TiO2-Ni(OH)(2) Assembly[J]. CHEMSUSCHEM,2015,8(4):642-649.
APA Yu, S.,Li, ZJ.,Fan, XB.,Li, JX.,Zhan, F.,...&陶冶.(2015).Vectorial Electron Transfer for Improved Hydrogen Evolution by Mercaptopropionic-Acid-Regulated CdSe Quantum-Dots-TiO2-Ni(OH)(2) Assembly.CHEMSUSCHEM,8(4),642-649.
MLA Yu, S,et al."Vectorial Electron Transfer for Improved Hydrogen Evolution by Mercaptopropionic-Acid-Regulated CdSe Quantum-Dots-TiO2-Ni(OH)(2) Assembly".CHEMSUSCHEM 8.4(2015):642-649.
Files in This Item:
File Name/Size DocType Version Access License
208.pdf(1236KB)期刊论文作者接受稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yu, S]'s Articles
[Li, ZJ]'s Articles
[Fan, XB]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yu, S]'s Articles
[Li, ZJ]'s Articles
[Fan, XB]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yu, S]'s Articles
[Li, ZJ]'s Articles
[Fan, XB]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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