The Effect of Sintering Temperature on Microstructure and Electrocatalytic Capability of RuO₂-IrO₂-TiO₂/Ti Anode

Abstract:

The anodes of RuO₂-IrO₂-TiO₂/Ti were prepared by Pechini method. The surface morphology and electrocatalytic capability of anodes were studied by SEM, EDX, XRD, polarization curve, cyclic voltammetry curve and accelerated life test. It has been shown that the anodes have uniform surface composition, and the surface density of the anodes were increased as the sintering temperature increased, some active elements were crystallization grains at the surface of the anode when sintering temperature ≥500°C. The chlorine evolution capability of anode had a tendency to increase firstly then fall down afterwards as the sintering temperature increased. But the electrocatalytic capability of anodes showed an opposite tendency. The RuO₂-IrO₂-TiO₂/Ti anode prepared at 500°C presents the longest service life.

• Periodical: Key Engineering Materials (Volumes 512-515)
• Pages: 1668-1672
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.512-515.1668
• Online since: June 2012
• Authors: Dong Qu, Jin Hu, Li Shen, Wei Jun Zhang, Hua Tang
• Keywords: Pechini Method, RuO₂-IrO₂-TiO₂/Ti Anode, Sintering Temperature

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