An alternative approach to ascertain the rate-determining steps of TiO2 photoelectrocatalytic reaction by electrochemical impedance spectroscopy
文献类型：期刊论文
| 作者 | Liu, H; Li, XZ; Leng, YJ; Li, WZ |
| 刊名 | journal of physical chemistry b
 |
| 出版日期 | 2003-08-28 |
| 卷号 | 107期号:34页码:8988-8996 |
| 产权排序 | 3;1 |
| 英文摘要 | in an attempt to ascertain the rate-determining steps (rds) of tio2 photoelectrocatalytic (pec) reaction, the pec oxidation of sulfosalicylic acid (ssa) solution in a tio2-coated electrode reactor system was monitored by applying the electrochemical impedance spectroscopy (eis) method. in the meantime, an eis mathematical model was first established to theoretically simulate the pec reaction. based on the eis model, the theoretical simulation indicates three typical reactions in a pec oxidation process, which include the charge-transfer-dominated reaction, both the charge-transfer- and adsorption-dominated reaction, and the adsorption-dominated reaction. the experimental results of eis measurement showed that there was only one arc/semicircle on the eis plane display when the external bias applied was below 200 mv (vs sce) in the ssa pec degradation whereas there were two arcs/semicircles when the externally applied bias exceeded 200 mv (vs sce). the experimental results have a good agreement with the model simulation. the eis method in this study provides an easier way to determine the rds in a pec oxidation process, which would be helpful to better control the reaction in practice. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | intensity-modulated photocurrent ; photocatalytic degradation ; film electrodes ; sulfosalicylic acid ; titanium-dioxide ; aqueous-solution ; adsorption ; photooxidation ; oxidation ; kinetics |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000184968000039 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/83009]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Civil & Struct Engn, Kowloon, Hong Kong, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Nanyang Technol Univ, Sch Mech & Prod Engn, Singapore 639798, Singapore |
| 推荐引用方式 GB/T 7714 | Liu, H,Li, XZ,Leng, YJ,et al. An alternative approach to ascertain the rate-determining steps of TiO2 photoelectrocatalytic reaction by electrochemical impedance spectroscopy[J]. journal of physical chemistry b,2003,107(34):8988-8996. |
| APA | Liu, H,Li, XZ,Leng, YJ,&Li, WZ.(2003).An alternative approach to ascertain the rate-determining steps of TiO2 photoelectrocatalytic reaction by electrochemical impedance spectroscopy.journal of physical chemistry b,107(34),8988-8996. |
| MLA | Liu, H,et al."An alternative approach to ascertain the rate-determining steps of TiO2 photoelectrocatalytic reaction by electrochemical impedance spectroscopy".journal of physical chemistry b 107.34(2003):8988-8996. |
入库方式： OAI收割
来源：大连化学物理研究所
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