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Development of Bifunctional Electrocatalyst for PEM URFC  

Yim, Sung-Dae (Fuel Cell Research Center, Hydrogen & Fuel Cell Research Department, Korea Institute of Energy Research)
Park, Gu-Gon (Fuel Cell Research Center, Hydrogen & Fuel Cell Research Department, Korea Institute of Energy Research)
Sohn, Young-Jun (Fuel Cell Research Center, Hydrogen & Fuel Cell Research Department, Korea Institute of Energy Research)
Yang, Tae-Hyun (Fuel Cell Research Center, Hydrogen & Fuel Cell Research Department, Korea Institute of Energy Research)
Yoon, Young-Gi (Fuel Cell Research Center, Hydrogen & Fuel Cell Research Department, Korea Institute of Energy Research)
Lee, Won-Yong (Fuel Cell Research Center, Hydrogen & Fuel Cell Research Department, Korea Institute of Energy Research)
Kim, Chang-Soo (Fuel Cell Research Center, Hydrogen & Fuel Cell Research Department, Korea Institute of Energy Research)
Publication Information
Transactions of the Korean hydrogen and new energy society / v.15, no.1, 2004 , pp. 23-31 More about this Journal
Abstract
For the fabrication of high efficient bifunctional electrocatalyst of oxygen electrode for PEM URFC (Polymer Electrolyte Membrane Unitized Regenerative Fuel Cell), which is a promising energy storage and conversion system using hydrogen as the energy medium, several bifunctional electrocatalysts were prepared and tested in a single cell URFC system. The catalysts for oxygen electrode revealed fuel cell performance in the order of Pt black > PtIr > PtRuOx > PtRu ~ PtRuIr > PtIrOx, whereas water electrolysis performance in the order of PtIr ~ PtIrOx > PtRu > PtRuIr > PtRuOx ~ Pt black. Considering both reaction modes PtIr was the most effective elctrocatalyst for oxygen electrode of present PEM URFC system. In addition, the water electrolysis performance was significantly improved when Ir or IrOx was added to Pt black just 1 wt.% without the decrease of fuel cell performance. Based on the catalyst screening and the optimization of catalyst composition and loading, the optimum catalyst electrodes for PEM URFC were $1.0mg/cm^2$ of Pt black as hydrogen electrode and $2.0mg/cm^2$ of PtIr (99:1) as oxygen electrode.
Keywords
PEMFC; URFC; PtIr; Bifunctional electrocatalyst; Water electrolysis;
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1 H.P. Dhar : J. Appl. Electrochem, Vol. 23, 1993, p. 32   DOI
2 T. Ioroi, N. Kitazawa, K. Yasuda, Y. Yamamoto and H. Takenaka : J. Electrochem. Soc., Vol. 147, 2000, p. 2018   DOI   ScienceOn
3 T. Ioroi, N. Kitazawa, K. Yasuda, Y. Yamamoto and H. Takenaka : J. Appl. Electrochem, Vol. 31, 2001, p. 1179   DOI   ScienceOn
4 G. Chen, D.A. Delafuente, S. Sarangapani and T.E. Mallouk : Catal. Today, Vol. 67, 2001, p. 341   DOI   ScienceOn
5 G. Chen, S.R. Bare and T.E. Mallouk : J. Electrochem. Soc., Vol. 149, 2002, A1092   DOI   ScienceOn
6 G.G. Park, J.H. Jung, D.H. Jung, D.R. Shin and C.S. Kim : Proceedings of 2000 Fuel Cell Seminar Portland, OR., Vol. 30, Oct.- 2 Nov. 2000, p. 167
7 F. Mitlitsky, B. Myers and A.H. Weisberg : Energy & Fuels, Vol. 12, 1998, p. 56   DOI   ScienceOn
8 T. Ioroi, K. Yasuda, Z. Siroma, N. Fujiwara and Y. Miyazaki : J. Power Sources, Vol. 112, 2002, p. 583   DOI   ScienceOn
9 K. Ledjeff, F. Mahlendorf, V. Peinecke and A. Heinzel : Electrochim. Acta, Vol. 40, 1995, p. 315   DOI   ScienceOn
10 S. Zhigang, Y. Baolian and H. Ming : J. Power Sources, Vol. 79, 1999, p. 82   DOI   ScienceOn
11 www.protonenergy.com
12 W. Smith : J. Power Sources, Vol. 86, 2000, p. 74   DOI   ScienceOn