Stable Ti/IrOx-Sb2O5-SnO2anode for O2evolution with low Ir content

Xueming Chen; Guohua Chen; Po Lock Yue

doi:10.1021/jp010038d

Stable Ti/IrO_x-Sb₂O₅-SnO₂anode for O₂evolution with low Ir content

Xueming Chen
, Guohua Chen
, Po Lock Yue

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

214 Citations (Scopus)

Abstract

Titanium anodes coated with a ternary iridium, antimony, and tin oxide mixture (Ti/IrOx-Sb2O5-SnO2) were investigated for oxygen evolution. In the active oxide coating, SnO2serves as a dispersing agent, Sb2O5as a dopant, and IrOxas a catalyst. Experimental results showed that the Ti/IrOx-Sb2O5-SnO2electrode containing only 10 mol % of IrOxnominally in the coating had a service life of 1600 h in 3 M H2SO4solution under a current density of 1 A cm-1at 35°C, compared with 355 h for Ti/IrOxunder the same conditions. Instrumental analysis indicated that the IrOx-Sb2O5-SnO2was a metastable solid solution with a compact structure, which contributes to the superstable nature of the electrode together with the good conductivity and the improvement of bonding with the TiO2interlayer formed during calcination.

Original language	English
Pages (from-to)	4623-4628
Number of pages	6
Journal	Journal of Physical Chemistry B Materials
Volume	105
Issue number	20
DOIs	https://doi.org/10.1021/jp010038d
Publication status	Published - 24 May 2001
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Surfaces, Coatings and Films
Materials Chemistry

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10.1021/jp010038d

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@article{b113d8ccd16f46a9bbfa4ce53efd4461,

title = "Stable Ti/IrOx-Sb2O5-SnO2anode for O2evolution with low Ir content",

abstract = "Titanium anodes coated with a ternary iridium, antimony, and tin oxide mixture (Ti/IrOx-Sb2O5-SnO2) were investigated for oxygen evolution. In the active oxide coating, SnO2serves as a dispersing agent, Sb2O5as a dopant, and IrOxas a catalyst. Experimental results showed that the Ti/IrOx-Sb2O5-SnO2electrode containing only 10 mol \% of IrOxnominally in the coating had a service life of 1600 h in 3 M H2SO4solution under a current density of 1 A cm-1at 35°C, compared with 355 h for Ti/IrOxunder the same conditions. Instrumental analysis indicated that the IrOx-Sb2O5-SnO2was a metastable solid solution with a compact structure, which contributes to the superstable nature of the electrode together with the good conductivity and the improvement of bonding with the TiO2interlayer formed during calcination.",

author = "Xueming Chen and Guohua Chen and Yue, \{Po Lock\}",

year = "2001",

month = may,

day = "24",

doi = "10.1021/jp010038d",

language = "English",

volume = "105",

pages = "4623--4628",

journal = "Journal of Physical Chemistry B Materials",

issn = "1089-5647",

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TY - JOUR

T1 - Stable Ti/IrOx-Sb2O5-SnO2anode for O2evolution with low Ir content

AU - Chen, Xueming

AU - Chen, Guohua

AU - Yue, Po Lock

PY - 2001/5/24

Y1 - 2001/5/24

N2 - Titanium anodes coated with a ternary iridium, antimony, and tin oxide mixture (Ti/IrOx-Sb2O5-SnO2) were investigated for oxygen evolution. In the active oxide coating, SnO2serves as a dispersing agent, Sb2O5as a dopant, and IrOxas a catalyst. Experimental results showed that the Ti/IrOx-Sb2O5-SnO2electrode containing only 10 mol % of IrOxnominally in the coating had a service life of 1600 h in 3 M H2SO4solution under a current density of 1 A cm-1at 35°C, compared with 355 h for Ti/IrOxunder the same conditions. Instrumental analysis indicated that the IrOx-Sb2O5-SnO2was a metastable solid solution with a compact structure, which contributes to the superstable nature of the electrode together with the good conductivity and the improvement of bonding with the TiO2interlayer formed during calcination.

AB - Titanium anodes coated with a ternary iridium, antimony, and tin oxide mixture (Ti/IrOx-Sb2O5-SnO2) were investigated for oxygen evolution. In the active oxide coating, SnO2serves as a dispersing agent, Sb2O5as a dopant, and IrOxas a catalyst. Experimental results showed that the Ti/IrOx-Sb2O5-SnO2electrode containing only 10 mol % of IrOxnominally in the coating had a service life of 1600 h in 3 M H2SO4solution under a current density of 1 A cm-1at 35°C, compared with 355 h for Ti/IrOxunder the same conditions. Instrumental analysis indicated that the IrOx-Sb2O5-SnO2was a metastable solid solution with a compact structure, which contributes to the superstable nature of the electrode together with the good conductivity and the improvement of bonding with the TiO2interlayer formed during calcination.

UR - https://www.scopus.com/pages/publications/0035942922

U2 - 10.1021/jp010038d

DO - 10.1021/jp010038d

M3 - Journal article

SN - 1089-5647

VL - 105

SP - 4623

EP - 4628

JO - Journal of Physical Chemistry B Materials

JF - Journal of Physical Chemistry B Materials

IS - 20

ER -

Stable Ti/IrO_x-Sb₂O₅-SnO₂anode for O₂evolution with low Ir content

Abstract

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