Photocatalytic Hydrogen Evolution Based on Efficient Energy and Electron Transfers in Donor-Bridge-Acceptor Multibranched-Porphyrin-Functionalized Platinum Nanocomposites
文献类型：期刊论文
| 作者 | Zhu, Mingshan1,2; Dong, Yupei1; Du, Yukou1; Mou, Zhigang1; Liu, Jian1; Yang, Ping1; Wang, Xiaomei1 |
| 刊名 | CHEMISTRY-A EUROPEAN JOURNAL
 |
| 出版日期 | 2012-04-01 |
| 卷号 | 18期号:14页码:4367-4374 |
| 关键词 | Donor-acceptor Systems Electron Transfer Hydrogen Platinum Porphyrinoids Photocatalysis |
| ISSN号 | 0947-6539 |
| DOI | 10.1002/chem.201102595 |
| 英文摘要 | Two donorbridgeacceptor conjugates (5,10,15,20-tetrakis[4-(N,N-diphenylaminobenzoate)phenyl] porphyrin (TPPZ) and 5,10,15,20-tetrakis[4-(N,N-diphenylaminostyryl)phenyl] porphyrin (TPPX)) were covalently linked to triphenylamine (TPA) at the meso-position of porphyrin ring. The triphenylamine entities were expected to act as energy donors and the porphyrins to act as an energy acceptor. In this paper, we report on the synthesis of these multibranched-porphyrin-functionalized Pt nanocomposites. The conjugates used here not only served as a stabilizer to prevent agglomeration of Pt nanoparticles, but also as a light-harvesting photosensitizer. The occurrence of photoinduced electron-transfer processes was confirmed by time-resolved fluorescence and photoelectrochemical spectral measurements. The different efficiencies for energy and electron transfer in the two multibranched porphyrins and the functionalized Pt nanocomposites were attributed to diverse covalent linkages. Moreover, in the reduction of water to produce H2, the photocatalytic activity of the Pt nanocomposite functionalized by TPPX, in which the triphenylamine and porphyrin moieties are bonded through an ethylene bridge, was much higher than that of the platinum nanocomposite functionalized by TPPZ, in which the two moieties are bonded through an ester. This investigation demonstrates the fundamental advantages of constructing donorbridgeacceptor conjugates as highly efficient photosensitizers based on efficient energy and electron transfer. |
| 语种 | 英语 |
| WOS记录号 | WOS:000302073700030 |
| 出版者 | WILEY-V C H VERLAG GMBH |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/49145]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Yang, Ping |
| 作者单位 | 1.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, Inst Chem, CAS Key Lab Colloid Interface & Chem Thermodynam, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Mingshan,Dong, Yupei,Du, Yukou,et al. Photocatalytic Hydrogen Evolution Based on Efficient Energy and Electron Transfers in Donor-Bridge-Acceptor Multibranched-Porphyrin-Functionalized Platinum Nanocomposites[J]. CHEMISTRY-A EUROPEAN JOURNAL,2012,18(14):4367-4374. |
| APA | Zhu, Mingshan.,Dong, Yupei.,Du, Yukou.,Mou, Zhigang.,Liu, Jian.,...&Wang, Xiaomei.(2012).Photocatalytic Hydrogen Evolution Based on Efficient Energy and Electron Transfers in Donor-Bridge-Acceptor Multibranched-Porphyrin-Functionalized Platinum Nanocomposites.CHEMISTRY-A EUROPEAN JOURNAL,18(14),4367-4374. |
| MLA | Zhu, Mingshan,et al."Photocatalytic Hydrogen Evolution Based on Efficient Energy and Electron Transfers in Donor-Bridge-Acceptor Multibranched-Porphyrin-Functionalized Platinum Nanocomposites".CHEMISTRY-A EUROPEAN JOURNAL 18.14(2012):4367-4374. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。