Iridium oxide/platinum electrocatalysts for unitized regenerative polymer electrolyte fuel cells

被引：164

作者：

Ioroi, T ^{[1
]}

Kitazawa, N

Yasuda, K

Yamamoto, Y

Takenaka, H

机构：

[1] Osaka Natl Res Inst, Dept Energy & Environm, Ikeda, Osaka 5638577, Japan

[2] Ritsumeikan Univ, Fac Sci & Engn, Dept Chem, Shiga 52577, Japan

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2000年 / 147卷 / 06期

关键词：

D O I：

10.1149/1.1393478

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

To improve the water electrolysis performance of unitized regenerative fuel cells, ultrafine IrO2 powder was synthesized from colloidal precursors, and an active electrode for oxygen evolution and reduction was prepared by mixing the IrO2 powder and Pt black. Analysis showed that the surface area of the synthesized IrO2 was higher than that of high-surface-area Pt black. During fuel cell operation, IrO2 increased the overpotential slightly; however during water electrolysis, the mixed Pt-IrO2 electrocatalyst had a considerably higher activity for oxygen evolution. The addition of only a small amount of IrO2 (10-30 mol %) to the oxygen electrode was sufficient for the unitized regenerative fuel cell. (C) 2000 The Electrochemical Society. S0013-4651(99)09-093-X. All rights reserved.

引用

页码：2018 / 2022

页数：5

共 27 条

[1] HYDROGEN OXYGEN PROTON-EXCHANGE MEMBRANE FUEL-CELLS AND ELECTROLYZERS
BALDWIN, R
PHAM, M
LEONIDA, A
MCELROY, J
NALETTE, T
[J]. JOURNAL OF POWER SOURCES, 1990, 29 (3-4) : 399 - 412
[2] PREPARATION AND ULTRAVIOLET-VISIBLE SPECTRUM OF HEXA-AQUAIRIDIUM(III)
BEUTLER, P
GAMSJAGER, H
[J]. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1976, (14) : 554 - 555
[3] EISENBERG A, 1998, INTRO IONOMERS, P164
[4] INAZUMI C, 1999, NEW EN SYST CONV P 4
[5] Kinoshita K., 1992, ELECTROCHEMICAL OXYG, P19
[6] KINOSHITA K, 1992, ELECTROCHEMICAL OXYG, P78
[7] LaConti A.B., 1977, P ELECTROCHEM SOC, V77, P354
[8] DEVELOPMENT OF ELECTRODE MEMBRANE UNITS FOR THE REVERSIBLE SOLID POLYMER FUEL-CELL (RSPFC)
LEDJEFF, K
MAHLENDORF, F
PEINECKE, V
HEINZEL, A
[J]. ELECTROCHIMICA ACTA, 1995, 40 (03) : 315 - 319
[9] ADVANCES IN WATER ELECTROLYSIS TECHNOLOGY WITH EMPHASIS ON USE OF THE SOLID POLYMER ELECTROLYTE
LU, PWT
SRINIVASAN, S
[J]. JOURNAL OF APPLIED ELECTROCHEMISTRY, 1979, 9 (03) : 269 - 283
[10] Regenerative fuel cell systems
Mitlitsky, F
Myers, B
Weisberg, AH
[J]. ENERGY & FUELS, 1998, 12 (01) : 56 - 71

← 1 2 3 →