New proton-conducting hybrid polymer membranes for PEM fuel cells: synthesis and properties
Direct Methanol Fuel Cells (DMFCs) are a very promising technology for powering portable microelectronic equipment. The gravimetric power density is particularly attractive in comparison with rechargeable batteries,even using Li ion technology.Successful development of DMFCs needs to significantly improve the quality of the polymer electrolyte membrane. The currently used perfluorinated and sulfonated polymers present several disadvantages, starting with a high price, a mediocre stability above 80℃, leading to loss of performance at higher temperatures and, for DMFCs, permeability to methanol molecules, leading to the phenomenon of methanol cross-over, which reduces considerably the efficiency of the fuel cell.
Philippe Knauth Maria Luisa Di Vona
Université de Provence,Laboratoire Chimie Provence,Marseille,France Università di Roma Tor Vergata,Dip.Scienze Tecnologie Chimiche,Roma,Italy
国际会议
5th International Symposium on High-Tech Polymer Materials(HTPM-V)(第五届国际高技术高分子材料学术会议)
北京
英文
2-3
2008-10-27（万方平台首次上网日期，不代表论文的发表时间）