Articles & Issues
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
-
This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright © KIChE. All rights reserved.
All issues
가속시험을 이용한 인산형 연료전지 전극의 성능 특성
Performance Characteristics of Phosphoric Acid Fuel Cell Electrode by Acceleration Test
HWAHAK KONGHAK, April 1995, 33(2), 225-234(10), NONE
Download PDF
Abstract
본 연구에서는 인산형 연료전지용 전국의 제조시 전극촉매층에서의 PTFE 함량(25에서 65wt%까지)과 소결온도(310에서 390℃까지)의 영향을 알기 위하여 인산흡수도 및 개회로 전압에서의 가속시험에 의한 반전지 특성과 oxygen gain을 조사하였다. 전극촉매층의 인산흡수도는 10시간 이훙에 포화상태를 나타내었으며 전극 지지체에 대한 인산 흡수도는 지속적인 증가를 나타내었다. 가속시험 초기에 전극 성능은 전극촉매층 PTFE 함량이 낮은 쪽에서 최고 성능을 나타내었으나 가속시험 시간경과에 따라 PTFE 함량 45wt%에서 최고 성능을 나타내었다. 이러한 성능의 변화를 oxygen gain을 측정하여 인산에 의한 내부구조 변화와 연관하여 고찰하였다.
The effects of polytetrafluoroethylene(PTFE) contents and sintering temperature of electrocatalyst on the electrode performance for phosphoric acid fuel cell have been studied by an acceleration test of cathode half cell, and measurement of the phosphoric acid absorption of catalyst layer and support. The acid absorption in catalyst layer was saturated after 10 hours, but that of electrode support layer was continuously increased. While the performance of electrode showed maximum in the low PTFE contents at the initial stage of acceleration test, the maximum performance was shifted to 45wt% PTFE contents after 24 hours acceleration test. These phenomena were discussed with oxygen gain characteristics and microstructure variation caused by phosphoric acid absorption into electrode.
References
Gruver GA, J. Electrochem. Soc., 125, 1719 (1978)
Bindra P, Clouser SJ, Yeager E, J. Electrochem. Soc., 126, 1631 (1979)
Aragane J, Murahashi T, Odaka T, J. Electrochem. Soc., 135, 844 (1988)
Coleman AJ, Adams AA, Joebstl JA, Walker GW, Power Source Conference, 29th, 9-13 (1980)
Christner L, George M, DOE Report, DOE/ET/13114-T8
Alderucci V, Passalacqua E, Giordano N, J. Appl. Electrochem., 20, 235 (1990)
Honji A, Mori T, Tamura K, Hishinuma Y, J. Electrochem. Soc., 135(2), 355 (1988)
Watanabe M, Tomikawa M, Motoo S, J. Electroanal. Chem., 195, 81 (1985)
Mori T, Imahashi J, Kamo T, Tamura K, hishinuma Y, J. Electrochem. Soc., 133(5), 896 (1986)
Song RH, Kim CS, Choi BW, Shin DR, Choi SH, HWAHAK KONGHAK, 31(6), 735 (1993)
Bindra P, Clouser SJ, Yeager E, J. Electrochem. Soc., 126, 1631 (1979)
Aragane J, Murahashi T, Odaka T, J. Electrochem. Soc., 135, 844 (1988)
Coleman AJ, Adams AA, Joebstl JA, Walker GW, Power Source Conference, 29th, 9-13 (1980)
Christner L, George M, DOE Report, DOE/ET/13114-T8
Alderucci V, Passalacqua E, Giordano N, J. Appl. Electrochem., 20, 235 (1990)
Honji A, Mori T, Tamura K, Hishinuma Y, J. Electrochem. Soc., 135(2), 355 (1988)
Watanabe M, Tomikawa M, Motoo S, J. Electroanal. Chem., 195, 81 (1985)
Mori T, Imahashi J, Kamo T, Tamura K, hishinuma Y, J. Electrochem. Soc., 133(5), 896 (1986)
Song RH, Kim CS, Choi BW, Shin DR, Choi SH, HWAHAK KONGHAK, 31(6), 735 (1993)
