X-ray photoelectron spectroscopy analysis of the stability of platinized catalytic electrodes in dye-sensitized solar cells
文献类型：期刊论文
| 作者 | Wang, GQ; Lin, Y; Xiao, XR; Li, XP; Wang, WB |
| 刊名 | SURFACE AND INTERFACE ANALYSIS
 |
| 出版日期 | 2004-11-01 |
| 卷号 | 36期号:11页码:1437-1440 |
| 关键词 | Dye-sensitized Solar Cells Platinized Catalytic Electrode Stability Xps |
| ISSN号 | 0142-2421 |
| DOI | 10.1002/sia.1905 |
| 英文摘要 | The stability of platinized catalytic electrodes prepared by thermal decomposition of hexachloroplatinic acid was investigated. The platinum on the electrode did not dissolve in the presence of the electrolyte containing an iodide/triiodide redox couple, even under anodic bias. The electrocatalytic activity of platinized catalytic electrodes sealed in a cell with oxygen-free electrolyte did not decrease within 23 weeks. However, the charge transfer resistance value of platinized catalytic electrodes increased tenfold when the electrodes were heated at 150degrees for 15 min in air during the sealing process and doubled when the electrodes were reused. The XPS analysis results showed that part of the platinum catalyst on the surface of the electrode was transformed to Pt[II] and Pt[IV] during the thermal sealing process, which led to the decrease of catalytic activity of the platinized catalytic electrodes for the reduction of triiodide. A large amount of inactive iodine absorbed on the surface of the reused electrode, which was confirmed by XPS, also decreased the electrocatalytic activity of the electrodes. The electrocatalytic activity of reused electrodes can be recovered by heating again at 390degreesC or removing the platinum oxide and inactive iodine by the electrochemical method. Copyright (C) 2004 John Wiley Sons, Ltd. |
| 语种 | 英语 |
| WOS记录号 | WOS:000225242600001 |
| 出版者 | JOHN WILEY & SONS LTD |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/82163]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Lin, Y |
| 作者单位 | 1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Key Lab Photochem, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, GQ,Lin, Y,Xiao, XR,et al. X-ray photoelectron spectroscopy analysis of the stability of platinized catalytic electrodes in dye-sensitized solar cells[J]. SURFACE AND INTERFACE ANALYSIS,2004,36(11):1437-1440. |
| APA | Wang, GQ,Lin, Y,Xiao, XR,Li, XP,&Wang, WB.(2004).X-ray photoelectron spectroscopy analysis of the stability of platinized catalytic electrodes in dye-sensitized solar cells.SURFACE AND INTERFACE ANALYSIS,36(11),1437-1440. |
| MLA | Wang, GQ,et al."X-ray photoelectron spectroscopy analysis of the stability of platinized catalytic electrodes in dye-sensitized solar cells".SURFACE AND INTERFACE ANALYSIS 36.11(2004):1437-1440. |
入库方式： OAI收割
来源：化学研究所
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