Investigation of Ti/IrO2-Sb2O5-SnO2electrodes for O2evolution calcination temperature and precursor composition effects

Xueming Chen; Guohua Chen

doi:10.1149/1.1922890

Investigation of Ti/IrO₂-Sb₂O₅-SnO₂electrodes for O₂evolution calcination temperature and precursor composition effects

Xueming Chen, Guohua Chen

Research output: Journal article publication › Journal article › Academic research › peer-review

37 Citations (Scopus)

Abstract

Previous studies have shown that ternary IrO2-Sb2O5-SnO2is among the best electrocatalysts for O2evolution. Its high stability and low Ir content make it more attractive than IrO2and many other electrocatalysts. In this paper, the electrochemical stability and activity of the Ti/IrO2-Sb2O5-SnO2electrodes prepared under different conditions were investigated. It was found that the calcination temperature and Sb and Ir contents could affect the stability and activity significantly. The optimal calcination temperature, and Sb content are 550°C and 15 mol %, respectively. The stability and activity increased with an increase in the Ir content in the investigated range of 0-10 mol %. Physicochemical analysis showed that the IrO2-Sb2O5-SnO2coatings obtained were oxide solid solutions even at a Sb content up to 25 mol % and had compact microstructure when Sb ≤ 15 mol %.

Original language	English
Journal	Journal of the Electrochemical Society
Volume	152
Issue number	7
DOIs	https://doi.org/10.1149/1.1922890
Publication status	Published - 23 Aug 2005
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films
Electrochemistry
Materials Chemistry

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This output contributes to the following UN Sustainable Development Goals (SDGs)

More information

10.1149/1.1922890

Cite this

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title = "Investigation of Ti/IrO2-Sb2O5-SnO2electrodes for O2evolution calcination temperature and precursor composition effects",

abstract = "Previous studies have shown that ternary IrO2-Sb2O5-SnO2is among the best electrocatalysts for O2evolution. Its high stability and low Ir content make it more attractive than IrO2and many other electrocatalysts. In this paper, the electrochemical stability and activity of the Ti/IrO2-Sb2O5-SnO2electrodes prepared under different conditions were investigated. It was found that the calcination temperature and Sb and Ir contents could affect the stability and activity significantly. The optimal calcination temperature, and Sb content are 550°C and 15 mol %, respectively. The stability and activity increased with an increase in the Ir content in the investigated range of 0-10 mol %. Physicochemical analysis showed that the IrO2-Sb2O5-SnO2coatings obtained were oxide solid solutions even at a Sb content up to 25 mol % and had compact microstructure when Sb ≤ 15 mol %.",

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AB - Previous studies have shown that ternary IrO2-Sb2O5-SnO2is among the best electrocatalysts for O2evolution. Its high stability and low Ir content make it more attractive than IrO2and many other electrocatalysts. In this paper, the electrochemical stability and activity of the Ti/IrO2-Sb2O5-SnO2electrodes prepared under different conditions were investigated. It was found that the calcination temperature and Sb and Ir contents could affect the stability and activity significantly. The optimal calcination temperature, and Sb content are 550°C and 15 mol %, respectively. The stability and activity increased with an increase in the Ir content in the investigated range of 0-10 mol %. Physicochemical analysis showed that the IrO2-Sb2O5-SnO2coatings obtained were oxide solid solutions even at a Sb content up to 25 mol % and had compact microstructure when Sb ≤ 15 mol %.

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