Stable Ti/RuO2-Sb2O5-SnO2 electrodes for O2 evolution

Xueming Chen; Guohua Chen

doi:10.1016/j.electacta.2005.01.032

Stable Ti/RuO₂-Sb₂O₅-SnO₂ electrodes for O₂ evolution

Xueming Chen, Guohua Chen

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

136 Citations (Scopus)

Abstract

RuO₂-based electrodes are generally known to be unstable for O₂ evolution. In this paper, a stable type of RuO₂-based electrode, Ti/RuO₂-Sb₂O₅-SnO₂, is demonstrated for O₂ evolution. In the ternary oxide coating, RuO ₂ serves as the catalyst, SnO₂ as the dispersing agent, and Sb₂O₅ as the dopant. The accelerated life test showed that the Ti/RuO₂-Sb₂O₅-SnO₂ electrode containing 12.2 molar percent of RuO₂ nominally in the coating had a service life of 307 h in 3 M H₂SO₄ solution under a current density of 0.5 A cm^-2 at 25 °C, which is more than 15 times longer than other types of RuO₂-based electrodes. Instrumental analysis indicated that RuO₂-Sb₂O ₅-SnO₂ was a solid solution with a compact structure, which contributed to the stable nature of the electrode. © 2005 Elsevier Ltd. All rights reserved.

Original language	English
Pages (from-to)	4155-4159
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

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Research Keywords

Dimensionally stable anode
Electroflotation
Electrolysis
Electroplating
O2 evolution

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title = "Stable Ti/RuO2-Sb2O5-SnO2 electrodes for O2 evolution",

abstract = "RuO2-based electrodes are generally known to be unstable for O2 evolution. In this paper, a stable type of RuO2-based electrode, Ti/RuO2-Sb2O5-SnO2, is demonstrated for O2 evolution. In the ternary oxide coating, RuO 2 serves as the catalyst, SnO2 as the dispersing agent, and Sb2O5 as the dopant. The accelerated life test showed that the Ti/RuO2-Sb2O5-SnO2 electrode containing 12.2 molar percent of RuO2 nominally in the coating had a service life of 307 h in 3 M H2SO4 solution under a current density of 0.5 A cm-2 at 25 °C, which is more than 15 times longer than other types of RuO2-based electrodes. Instrumental analysis indicated that RuO2-Sb2O 5-SnO2 was a solid solution with a compact structure, which contributed to the stable nature of the electrode. {\textcopyright} 2005 Elsevier Ltd. All rights reserved.",

keywords = "Dimensionally stable anode, Electroflotation, Electrolysis, Electroplating, O2 evolution",

author = "Xueming Chen and Guohua Chen",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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T1 - Stable Ti/RuO2-Sb2O5-SnO2 electrodes for O2 evolution

AU - Chen, Xueming

AU - Chen, Guohua

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2005/7/25

Y1 - 2005/7/25

N2 - RuO2-based electrodes are generally known to be unstable for O2 evolution. In this paper, a stable type of RuO2-based electrode, Ti/RuO2-Sb2O5-SnO2, is demonstrated for O2 evolution. In the ternary oxide coating, RuO 2 serves as the catalyst, SnO2 as the dispersing agent, and Sb2O5 as the dopant. The accelerated life test showed that the Ti/RuO2-Sb2O5-SnO2 electrode containing 12.2 molar percent of RuO2 nominally in the coating had a service life of 307 h in 3 M H2SO4 solution under a current density of 0.5 A cm-2 at 25 °C, which is more than 15 times longer than other types of RuO2-based electrodes. Instrumental analysis indicated that RuO2-Sb2O 5-SnO2 was a solid solution with a compact structure, which contributed to the stable nature of the electrode. © 2005 Elsevier Ltd. All rights reserved.

AB - RuO2-based electrodes are generally known to be unstable for O2 evolution. In this paper, a stable type of RuO2-based electrode, Ti/RuO2-Sb2O5-SnO2, is demonstrated for O2 evolution. In the ternary oxide coating, RuO 2 serves as the catalyst, SnO2 as the dispersing agent, and Sb2O5 as the dopant. The accelerated life test showed that the Ti/RuO2-Sb2O5-SnO2 electrode containing 12.2 molar percent of RuO2 nominally in the coating had a service life of 307 h in 3 M H2SO4 solution under a current density of 0.5 A cm-2 at 25 °C, which is more than 15 times longer than other types of RuO2-based electrodes. Instrumental analysis indicated that RuO2-Sb2O 5-SnO2 was a solid solution with a compact structure, which contributed to the stable nature of the electrode. © 2005 Elsevier Ltd. All rights reserved.

KW - Dimensionally stable anode

KW - Electroflotation

KW - Electrolysis

KW - Electroplating

KW - O2 evolution

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U2 - 10.1016/j.electacta.2005.01.032

DO - 10.1016/j.electacta.2005.01.032

M3 - RGC 21 - Publication in refereed journal

SN - 0013-4686

VL - 50

SP - 4155

EP - 4159

JO - Electrochimica Acta

JF - Electrochimica Acta

IS - 20

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