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Received July 6, 2011
Accepted July 30, 2011
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이온 오염에 의한 고분자전해질 연료전지의 성능저하
Decrease of PEMFC Performance by Ion Contamination
순천대학교 화학공학과, 540-742 전남 순천시 매곡동 315 1현대자동차 환경기술연구소, 446-912 경기도 용인시 기흥구 마북동 104
Department of Chemical Engineering, Sunchon National University, 315 Maegok-dong, Suncheon-si, Jeonnam 540-742, Korea 1HMC Eco Technology Research Institute, 104 Mabuk-dong, Giheung-gu, Youngin-si, Gyunggi-do 446-912, Korea
parkkp@sunchon.ac.kr
Korean Chemical Engineering Research, April 2012, 50(2), 187-190(4), NONE Epub 30 March 2012
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Abstract
고분자전해질연료전지(PEMFC)에서 음극 공기에 의한 이온오염은 막전극 합체(MEA)의 성능을 심각하게 열화시킨다. 본 연구에서는 산업단지, 길가, 해변의 공기 중 이온 농도를 측정하였다. 이들 지역에서 Na+, K+, Ca2+와 Fe3+ 이온 농도가 비교적 높았다. 가습수로부터 이들 이온이 cathode에 유입되어 MEA 성능에 미치는 영향에 대해 연구하였다. 수돗물을 가습수로 사용해 170시간 운전한 후 MEA 성능이 초기의 11%로 감소하였다. 이들 오염 이온들이 수소 이온보다 전해질 막의 슬폰산기와 친화력이 더 강해 전해질 막에 쉽게 이온 교환된 결과다. MEA 중에서 전극/막 계면에서 이온 오염이 MEA 성능저하에 미치는 영향이 제일 컸다.
Contamination of ion from cathode air on the membrane and electrode assembly (MEA) is the serious degradation source in proton exchange membrane fuel cells (PEMFC). In this study, concentration of ions in air at industry region, street and seaside were measured. There were comparably high concentration of Na+, K+, Ca2+ and Fe3+ in this regions. This paper shows the effects of MEA contamination by these ions generated from humidification water. After 170 hours of fuel cell operation using city water as humidification water, the performance of unit cell decrease to 11% of initial performance. The electrolyte membrane easily absorbed foreign contaminant cations due to the stronger affinity of foreign cations with the sulfonic acid group compared to H+. The contaminant ions existing in the interface between the platinum catalyst and ionomer layer turn out to be the most serious factor to decrease cell performance.
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References
Williams MC, Strakey JP, Surdoval WA, J. Power Sources, 143(1-2), 191 (2005)
Perry ML, Fuller TF, J. Electrochem. Soc., 149(7), S59 (2002)
Wilkinson DP, St-Pierre J, in: Vielstich W, Gasteiger HA, Lamm A (Eds.). Handbook of Fuel Cell: Fundamentals Technology and Applications, Vol. 3, John Wiley & Sons Ltd., Chichester, England, 611 (2003)
Wilson MS, Garzon FH, Sickafus KE, Gottesfeld S, J. Electrochem. Soc., 140, 2872 (1993)
Knights SD, Colbow KM, St-Pierre J, Wilkinson DP, J. Power Sources, 127(1-2), 127 (2004)
Luo Z, Li D, Tang H, Pan M, Ruan R, Int. J. Hydrogen Energy., 31, 1838 (2006)
Pozio A, Silva RF, De Francesco M, Giorgi L, Electrochim. Acta, 48(11), 1543 (2003)
Xie J, Wood DL, Wayne DM, Zawodzinski TA, Atanassov P, Borup RL, J. Electrochem. Soc., 152(1), A104 (2005)
Curtin DE, Lousenberg RD, Henry TJ, Tangeman PC, Tisack ME, J. Power Sources, 131(1-2), 41 (2004)
Wilkinson DP, St-Pierre J, in: Vielstich W, Gasteiger HA, Lamm L (Eds.). Handbook of Fuel Cell: Fundamentals Technology and Applications, Vol. 3, John Wiley & Sons Ltd., Chichester, England, 626 (2003)
Perry ML, Fuller TF, J. Electrochem. Soc., 149(7), S59 (2002)
Wilkinson DP, St-Pierre J, in: Vielstich W, Gasteiger HA, Lamm A (Eds.). Handbook of Fuel Cell: Fundamentals Technology and Applications, Vol. 3, John Wiley & Sons Ltd., Chichester, England, 611 (2003)
Wilson MS, Garzon FH, Sickafus KE, Gottesfeld S, J. Electrochem. Soc., 140, 2872 (1993)
Knights SD, Colbow KM, St-Pierre J, Wilkinson DP, J. Power Sources, 127(1-2), 127 (2004)
Luo Z, Li D, Tang H, Pan M, Ruan R, Int. J. Hydrogen Energy., 31, 1838 (2006)
Pozio A, Silva RF, De Francesco M, Giorgi L, Electrochim. Acta, 48(11), 1543 (2003)
Xie J, Wood DL, Wayne DM, Zawodzinski TA, Atanassov P, Borup RL, J. Electrochem. Soc., 152(1), A104 (2005)
Curtin DE, Lousenberg RD, Henry TJ, Tangeman PC, Tisack ME, J. Power Sources, 131(1-2), 41 (2004)
Wilkinson DP, St-Pierre J, in: Vielstich W, Gasteiger HA, Lamm L (Eds.). Handbook of Fuel Cell: Fundamentals Technology and Applications, Vol. 3, John Wiley & Sons Ltd., Chichester, England, 626 (2003)
