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| ELECTROCHEMICAL PROPERTIES OF TITANIUM ANODES PREPARED BY SURFACTANT-ASSISTED |
| GUO Haiyan, ZHU Junqiu, SHAO Yanqun, TANG Dian |
| Institute for Materials Research, Fuzhou University, Fuzhou 350108 |
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Abstract 30%Ru-70%Ti/Ti anode coatings on titanium TA2 substrates were prepared by thermal decomposition method. The cationic surfactant cetyltrimethylammonium bromide (CTAB) was introduced into this process as a templating agent. The effect of the templating agent CTAB on the surface area and the electrocatalytic activity of the anodes were studied by chlorine evolution potential (ECl), cyclic voltammetry (CV), voltammetric charge capacity (q*), active sites (Na) and roughness (Rf) tests. The results show that the using of templating agent CTAB had significant effects on reducing chlorine potential and enhancing electrocatalytic activity. The improvements of the electrocatalytic activity the RuO2-TiO2/Ti anodes can be attributed to two reasons: on the one hand, the high-surface areas and the porous oxide structures were obtained via CTAB, on the other hand, the porous oxide coatings had high-density structural defects, the surface active sites density was increased.
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Received: 27 July 2009
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Corresponding Authors:
SHAO Yanqun
E-mail: yqshao1989@163.com
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