Electrocatalytic degradation of 4-chlorophenol on F-doped PbO2 anodes
文献类型：期刊论文
| 作者 | Cao, Jianglin3; Zhao, Haiyan4; Cao, Fahe1; Zhang, Jianqing1,2; Cao, Chunan1,2 |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2009-03-30 |
| 卷号 | 54期号:9页码:2595-2602 |
| 关键词 | PbO2 F-doped PbO2 Electrocatalytic degradation 4-Chlorophenol Electron spin resonance |
| ISSN号 | 0013-4686 |
| DOI | 10.1016/j.electacta.2008.10.049 |
| 通讯作者 | Cao, Jianglin(jlcao@tongji.edu.cn) |
| 英文摘要 | PbO2 and F-doped PbO2 (F-PbO2) anodes have been prepared by a standard thermal decomposition-electrodeposition technique. The electrochemical stability of these anodes has been investigated by the accelerated life tests in sulphuric acid solution. The results show that the service life of the F-PbO2 anodes is almost three times longer than that of the PbO2 anodes. Furthermore, in the degradation of 4-chlorophenol (4-CP), the F-PbO2 anodes give a higher degradation rate than that observed for the PbO2 anodes. The influence of F- anion doping on the stability and activity of PbO2 anodes has been discussed. With the F-PbO2 anodes, the degradation of 4-CP is investigated according to the results of high-performance liquid chromatograph (HPLC), ionic chromatograph (IC) and cyclic voltammetry (CV). In addition, the electron spin resonance(ESR) technique using 5,5-dimethyl-1-pyrroline-N-oxide (DMPO)as the spin-trap reagent has been applied to detect free radical intermediates generated during in situ the electrocatalytic degradation of aqueous 4-CP on the F-PbC2 anodes. ESR measurements give the direct evidence that the active species (*OH) are responsible for the decomposition of 4-CP over F-PbO2 under anodic bias potential, strongly suggesting that the electrocatalytic degradation of most organic compounds on F-PbO2 anodes proceed via surface intermediates of water oxidation, not via direct oxidation at electrode surface. The formation mechanism of surface intermediates is also discussed. (C) 2008 Elsevier Ltd. All rights reserved. |
| WOS研究方向 | Electrochemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000264743900030 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.imr.ac.cn/handle/321006/96982]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Cao, Jianglin |
| 作者单位 | 1.Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China 2.Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China 3.Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China 4.Hebei Univ Sci & Technol, Coll Sci, Shijiazhuang 050018, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Jianglin,Zhao, Haiyan,Cao, Fahe,et al. Electrocatalytic degradation of 4-chlorophenol on F-doped PbO2 anodes[J]. ELECTROCHIMICA ACTA,2009,54(9):2595-2602. |
| APA | Cao, Jianglin,Zhao, Haiyan,Cao, Fahe,Zhang, Jianqing,&Cao, Chunan.(2009).Electrocatalytic degradation of 4-chlorophenol on F-doped PbO2 anodes.ELECTROCHIMICA ACTA,54(9),2595-2602. |
| MLA | Cao, Jianglin,et al."Electrocatalytic degradation of 4-chlorophenol on F-doped PbO2 anodes".ELECTROCHIMICA ACTA 54.9(2009):2595-2602. |
入库方式： OAI收割
来源：金属研究所
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