%0 Journal Article %1 Cho20105952 %A Cho, Yong-Hun %A Kim, Jinho %A Yoo, Sung Jong %A Jeon, Tae-Yeol %A Ahn, Minjeh %A Jung, Namgee %A Cho, Yoon-Hwan %A Lim, Ju Wan %A Lee, Joong Kee %A Yoon, Won-Sub %A Sung, Yung-Eun %D 2010 %J Journal of Power Sources %K aempl %N 18 %P 5952 - 5956 %R http://dx.doi.org/10.1016/j.jpowsour.2009.12.096 %T Enhancement of polymer electrolyte membrane fuel cell performance by boiling a membrane electrode assembly in sulfuric acid solution %U http://www.sciencedirect.com/science/article/pii/S0378775310000200 %V 195 %X A catalyst-coated membrane (CCM) as used in the membrane electrode assembly (MEA) of a polymer electrolyte membrane fuel cell is treated by dilute sulfuric acid solution (0.5 M) at boiling temperature for 1 h. This treatment improves the single-cell performance of the \CCM\ without further addition of Pt catalyst. The changed microstructure and electrochemical properties of the catalyst layer are investigated by field emission scanning electron microscopy with energy dispersive X-ray, mercury intrusion porosimetry, waterdrop contact angle measurement, Fourier transform-infrared spectrometry in attenuated total reflection mode, electrochemical impedance spectroscopy, and cyclic voltammetry. The results indicate that this pretreatment enhances \MEA\ performance by changing the microstructure of the catalyst layer and thus changing the degree of hydration, and by modifying the Pt surface, thus enhancing the oxygen reduction reaction.

@article{Cho20105952, abstract = {A catalyst-coated membrane (CCM) as used in the membrane electrode assembly (MEA) of a polymer electrolyte membrane fuel cell is treated by dilute sulfuric acid solution (0.5 M) at boiling temperature for 1 h. This treatment improves the single-cell performance of the \{CCM\} without further addition of Pt catalyst. The changed microstructure and electrochemical properties of the catalyst layer are investigated by field emission scanning electron microscopy with energy dispersive X-ray, mercury intrusion porosimetry, waterdrop contact angle measurement, Fourier transform-infrared spectrometry in attenuated total reflection mode, electrochemical impedance spectroscopy, and cyclic voltammetry. The results indicate that this pretreatment enhances \{MEA\} performance by changing the microstructure of the catalyst layer and thus changing the degree of hydration, and by modifying the Pt surface, thus enhancing the oxygen reduction reaction. }, added-at = {2015-10-08T06:16:34.000+0200}, author = {Cho, Yong-Hun and Kim, Jinho and Yoo, Sung Jong and Jeon, Tae-Yeol and Ahn, Minjeh and Jung, Namgee and Cho, Yoon-Hwan and Lim, Ju Wan and Lee, Joong Kee and Yoon, Won-Sub and Sung, Yung-Eun}, biburl = {https://www.bibsonomy.org/bibtex/2ccd199a4547e8e9669485159051c5388/l1th1um}, description = {Enhancement of polymer electrolyte membrane fuel cell performance by boiling a membrane electrode assembly in sulfuric acid solution}, doi = {http://dx.doi.org/10.1016/j.jpowsour.2009.12.096}, interhash = {3fe31e2ed2a91f2376d7e27642bef124}, intrahash = {ccd199a4547e8e9669485159051c5388}, issn = {0378-7753}, journal = {Journal of Power Sources }, keywords = {aempl}, note = {Selected Papers Presented at 4th International Conference on Polymer Batteries and Fuel Cells }, number = 18, pages = {5952 - 5956}, timestamp = {2015-10-08T06:16:34.000+0200}, title = {Enhancement of polymer electrolyte membrane fuel cell performance by boiling a membrane electrode assembly in sulfuric acid solution }, url = {http://www.sciencedirect.com/science/article/pii/S0378775310000200}, volume = 195, year = 2010 }