Jeong, Kyoung-Jin Miesse, Craig A. Choi, Jong-Ho Lee, Jaeyoung Han, Jonghee Yoon, Sung Pil Nam, Suk Woo Lim, Tae-Hoon Lee, Tai Gyu 2024-01-21T01:02:22Z 2024-01-21T01:02:22Z 2021-09-02 2007-05-25 0378-7753 https://pubs.kist.re.kr/handle/201004/134385 This work studies formic acid crossover in a direct formic acid fuel cell under different operating conditions. Comparison with methanol crossover in a direct methanol fuel cell is included. The effects of cell conditioning, temperature, fuel concentration, and Nafion (R) thickness on the rate of formic acid crossover are examined. The effects of temperature, concentration, and membrane thickness are qualitatively similar to those with methanol, but overall crossover rates are much lower. Under the same operating conditions, it is found that formic acid has a crossover flux rate that is approximately one-sixth that of methanol. Measurement of the CO2 membrane permeation flux is performed to determine its contribution to a bias that it might cause in the quantification of crossover. (C) 2007 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV METHANOL CROSSOVER PERFORMANCE PERMEATION Fuel crossover in direct formic acid fuel cells Article 10.1016/j.jpowsour.2007.02.062 1 JOURNAL OF POWER SOURCES, v.168, no.1, pp.119 - 125 JOURNAL OF POWER SOURCES 168 1 119 125 scie scopus 000246745700016 2-s2.0-34247392905 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article METHANOL CROSSOVER PERFORMANCE PERMEATION fuel crossover direct formic acid fuel cell Nafion((R)) carbon dioxide cell conditioning