Stable Ti/RuO2-Sb2O5-SnO2electrodes for O2evolution

Xueming Chen; Guohua Chen

doi:10.1016/j.electacta.2005.01.032

Stable Ti/RuO₂-Sb₂O₅-SnO₂electrodes for O₂evolution

Xueming Chen, Guohua Chen

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

132 Citations (Scopus)

Abstract

RuO2-based electrodes are generally known to be unstable for O2evolution. In this paper, a stable type of RuO2-based electrode, Ti/RuO2-Sb2O5-SnO2, is demonstrated for O2evolution. In the ternary oxide coating, RuO2serves as the catalyst, SnO2as the dispersing agent, and Sb2O5as the dopant. The accelerated life test showed that the Ti/RuO2-Sb2O5-SnO2electrode containing 12.2 molar percent of RuO2nominally in the coating had a service life of 307 h in 3 M H2SO4solution under a current density of 0.5 A cm-2at 25 °C, which is more than 15 times longer than other types of RuO2-based electrodes. Instrumental analysis indicated that RuO2-Sb2O5-SnO2was a solid solution with a compact structure, which contributed to the stable nature of the electrode.

Original language	English
Pages (from-to)	4155-4159
Number of pages	5
Journal	Electrochimica Acta
Volume	50
Issue number	20
DOIs	https://doi.org/10.1016/j.electacta.2005.01.032
Publication status	Published - 25 Jul 2005
Externally published	Yes

Keywords

Dimensionally stable anode
Electroflotation
Electrolysis
Electroplating
O evolution 2

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry

More information

10.1016/j.electacta.2005.01.032

Cite this

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title = "Stable Ti/RuO2-Sb2O5-SnO2electrodes for O2evolution",

abstract = "RuO2-based electrodes are generally known to be unstable for O2evolution. In this paper, a stable type of RuO2-based electrode, Ti/RuO2-Sb2O5-SnO2, is demonstrated for O2evolution. In the ternary oxide coating, RuO2serves as the catalyst, SnO2as the dispersing agent, and Sb2O5as the dopant. The accelerated life test showed that the Ti/RuO2-Sb2O5-SnO2electrode containing 12.2 molar percent of RuO2nominally in the coating had a service life of 307 h in 3 M H2SO4solution under a current density of 0.5 A cm-2at 25 °C, which is more than 15 times longer than other types of RuO2-based electrodes. Instrumental analysis indicated that RuO2-Sb2O5-SnO2was a solid solution with a compact structure, which contributed to the stable nature of the electrode.",

keywords = "Dimensionally stable anode, Electroflotation, Electrolysis, Electroplating, O evolution 2",

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T1 - Stable Ti/RuO2-Sb2O5-SnO2electrodes for O2evolution

AU - Chen, Xueming

AU - Chen, Guohua

PY - 2005/7/25

Y1 - 2005/7/25

N2 - RuO2-based electrodes are generally known to be unstable for O2evolution. In this paper, a stable type of RuO2-based electrode, Ti/RuO2-Sb2O5-SnO2, is demonstrated for O2evolution. In the ternary oxide coating, RuO2serves as the catalyst, SnO2as the dispersing agent, and Sb2O5as the dopant. The accelerated life test showed that the Ti/RuO2-Sb2O5-SnO2electrode containing 12.2 molar percent of RuO2nominally in the coating had a service life of 307 h in 3 M H2SO4solution under a current density of 0.5 A cm-2at 25 °C, which is more than 15 times longer than other types of RuO2-based electrodes. Instrumental analysis indicated that RuO2-Sb2O5-SnO2was a solid solution with a compact structure, which contributed to the stable nature of the electrode.

AB - RuO2-based electrodes are generally known to be unstable for O2evolution. In this paper, a stable type of RuO2-based electrode, Ti/RuO2-Sb2O5-SnO2, is demonstrated for O2evolution. In the ternary oxide coating, RuO2serves as the catalyst, SnO2as the dispersing agent, and Sb2O5as the dopant. The accelerated life test showed that the Ti/RuO2-Sb2O5-SnO2electrode containing 12.2 molar percent of RuO2nominally in the coating had a service life of 307 h in 3 M H2SO4solution under a current density of 0.5 A cm-2at 25 °C, which is more than 15 times longer than other types of RuO2-based electrodes. Instrumental analysis indicated that RuO2-Sb2O5-SnO2was a solid solution with a compact structure, which contributed to the stable nature of the electrode.

KW - Dimensionally stable anode

KW - Electroflotation

KW - Electrolysis

KW - Electroplating

KW - O evolution 2

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