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Self-Assembled Framework Enhances Electronic Communication of Ultrasmall-Sized Nanoparticles for Exceptional Solar Hydrogen Evolution
Li, XB; Gao, YJ; Wang, Y; Zhan, F; Zhang, XY; Kong, QY; Zhao, NJ; Guo, Q; Wu, HL; Li, ZJ; Tao, Y; Zhang, JP; Chen, B; Tung, CH; Wu, LZ; Zhan F(展飞); Tao Y(陶冶)
2017
Source PublicationJOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN0002-7863
Volume139Issue:13Pages:4789-4796
SubtypeArticle
AbstractColloidal quantum dots (QDs) have demonstrated great promise in artificial photosynthesis. However, the ultrasmall size hinders its controllable and effective interaction with cocatalysts. To improve the poor interparticle electronic communication between free QD and cocatalyst, we design here a self-assembled architecture of nanoparticles, QDs and Pt nanoparticles, simply jointed together by molecular polyacrylate to greatly enhance the rate and efficiency of interfacial electron transfer (ET). The enhanced interparticle electronic communication is confirmed by femtosecond transient absorption spectroscopy and X-ray transient absorption. Taking advantage of the enhanced interparticle ET with a time scale of similar to 65 ps, 5.0 mL of assembled CdSe/CdS QDs/cocatalysts solution produces 94 +/- 1.5 mL (4183 +/- 67 mu mol) of molecular H-2 in 8 h, giving rise to an internal quantum yield of similar to 65% in the first 30 min and a total turnover number of >1.64 x 10(7) per Pt nanoparticle. This study demonstrates that self-assembly is a promising way to improve the sluggish kinetics of the interparticle ET process, which is the key step for advanced H2 photosynthesis.
DOI10.1021/jacs.6b12976
WOS KeywordCDSE/CDS CORE/SHELL NANOCRYSTALS ; PHOTOCATALYTIC H-2 EVOLUTION ; METAL-ORGANIC FRAMEWORKS ; ION LAYER ADSORPTION ; QUASI-TYPE-II ; QUANTUM DOTS ; SEMICONDUCTOR NANOCRYSTALS ; AQUEOUS-SOLUTION ; CHALCOGENIDE NANOCRYSTALS ; HIGHLY LUMINESCENT
Indexed BySCI ; EI ; PUBMED ; MEDLINE ; SCOPUS
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000398764000031
EI Accession Number20171503553741
EI KeywordsAbsorption spectroscopy - Artificial photosynthesis - Cadmium compounds - Hydrogen - II-VI semiconductors - Metal nanoparticles - Self assembly - Solar power generation
EI Classification Number615.2 Solar Power - 714.2 Semiconductor Devices and Integrated Circuits - 761 Nanotechnology - 804 Chemical Products Generally - 951 Materials Science
MedlineIDMEDLINE:28281343
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285111
Collection多学科研究中心
加速器中心
粒子天体物理中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Li, XB,Gao, YJ,Wang, Y,et al. Self-Assembled Framework Enhances Electronic Communication of Ultrasmall-Sized Nanoparticles for Exceptional Solar Hydrogen Evolution[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2017,139(13):4789-4796.
APA Li, XB.,Gao, YJ.,Wang, Y.,Zhan, F.,Zhang, XY.,...&陶冶.(2017).Self-Assembled Framework Enhances Electronic Communication of Ultrasmall-Sized Nanoparticles for Exceptional Solar Hydrogen Evolution.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,139(13),4789-4796.
MLA Li, XB,et al."Self-Assembled Framework Enhances Electronic Communication of Ultrasmall-Sized Nanoparticles for Exceptional Solar Hydrogen Evolution".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 139.13(2017):4789-4796.
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