High performance DMFC systems using proton conductive hydrocarbon membrane
Passive DMFC systems having different structures including various active areas were fabricated. Hydrocarbonated ionomer, sulfonated polyimide(SPI)-silica nanocomposite membrane, and perfluorinated ionomer, Nafion 117 ?, were used as proton conductive membrane. Passive DMFC showed poorer electrochemical performance than active DMFC because it could not be operated under heating condition and no feeding system made concentration polarization very high. Comparing with Nafion 117, SPI-silica nanocomposite membrane showed high passive cell performance, because of its high proton conductivity and low MeOH permeability. As cell design and preparation condition of passive DMFC system had a significant effect on electrochemical performance, they should be optimized for best performance.
Direct Methanol Fuel Cell(DMFC) Proton conductive Membrane Passive DMFC SPI-silica nanocomposite membrane
Chi Hoon Park Moon Joo Lee Dong Won Shin Sang Hyun Jeon Won Man Kim Seung Whan Yoo Dong Hoon Han Chang Hyun Lee Young Moo Lee
School of Chemical Engineering, College of Engineering, Hanyang University, Seoul 133-791
国际会议
The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)
北京
英文
2007-10-14（万方平台首次上网日期，不代表论文的发表时间）