Self-assembled framework enhances electronic communication of ultrasmall-sized nanoparticles for exceptional solar hydrogen evolution
文献类型：期刊论文
| 作者 | Li, Xu-Bing1,2; Gao, Yu-Ji1,2; Wang, Yang1,2; Zhan, Fei3; Zhang, Xiao-Yi4; Kong, Qing-Yu5; Zhao, Ning-Jiu6; Guo, Qing1,2; Wu, Hao-Lin1,2; Li, Zhi-Jun1,2 |
| 刊名 | Journal of the american chemical society
 |
| 出版日期 | 2017-04-05 |
| 卷号 | 139期号:13页码:4789-4796 |
| ISSN号 | 0002-7863 |
| DOI | 10.1021/jacs.6b12976 |
| 通讯作者 | Wu, li-zhu(lzwu@mail.ipc.ac.cn) |
| 英文摘要 | Colloidal 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. |
| WOS关键词 | CDSE/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 |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000398764000031 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2176664 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Wu, Li-Zhu |
| 作者单位 | 1.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Univ Chinese Acad Sci, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Inst High Energy Phys, Beijing Synchrotron Radiat Facil, Beijing 100049, Peoples R China 4.Argonne Natl Lab, Xray Sci Div, Adv Photon Source, 9700 South Cass Ave, Argonne, IL 60430 USA 5.Synchrotron Soleil Lorme Merisiers St Aubin, F-91192 Gif Sur Yvette, France 6.Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Xu-Bing,Gao, Yu-Ji,Wang, Yang,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, Xu-Bing.,Gao, Yu-Ji.,Wang, Yang.,Zhan, Fei.,Zhang, Xiao-Yi.,...&Wu, Li-Zhu.(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, Xu-Bing,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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