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Citation: Chu Dao-Bao, Wang Feng-Wu, Wei Yi-Jun, Yao Wen-Li, Li Xiao-Hua. Electrocatalytic Activities and Preparation of Nanocrystalline TiO₂ -Pt Modified Electrode[J]. Acta Physico-Chimica Sinica, ;2004, 20(02): 182-185. doi: 10.3866/PKU.WHXB20040215 shu

Electrocatalytic Activities and Preparation of Nanocrystalline TiO₂ -Pt Modified Electrode

1.
College of Chemistry and Materials Science, Anhui Normal University, Wuhu　241000; 2Huainan Teachers College, Huainan　232001

Received Date: 5 June 2003
Available Online: 15 February 2004

The nanocrystalline TiO2-Pt modified titanium (Ti/nano-TiO2-Pt) electrode was prepared by electrosynthesis and direct hydrolysis and electrodeposited Pt on nanocrystalline TiO2 film. SEM was used to characterize the structure of Ti/nano-TiO2-Pt (Pt micro particle 60 nm). Redox behaviors of the Ti/nano-TiO2-Pt electrode, as well as the electrocatalytic activity of the Ti/nano-TiO2-Pt electrode for Mn2＋ oxydized to Mn3＋ were investigated by cyclic voltammetry and bulk electrolysis. The results indicated that there was high electrocatalytic activity of the Ti/nano-TiO2-Pt electrode for Mn2＋ oxydized to Mn3＋; The electrocatalytic activity of the Ti/nano-TiO2-Pt electrode was higher than Pt electrode. In preparative electrolysis under heterogeneous optimal conditions, average current efficiency for Mn3＋ was 86％.
- Nanocrystalline TiO₂-Pt electrode;Electrocatalysis, Mn^3＋/Mn^2＋;Electrolytic oxidation;Cyclic voltammetry
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沈阳化工大学材料科学与工程学院沈阳 110142

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Electrocatalytic Activities and Preparation of Nanocrystalline TiO2 -Pt Modified Electrode

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通讯作者: 陈斌, bchen63@163.com

Electrocatalytic Activities and Preparation of Nanocrystalline TiO₂ -Pt Modified Electrode