Functionalized mesoporous materials used as proton conductive additives for high temperature PEM fuel cell membranes

摘要：

Mesoporous Si-MCM-41 has been functionalized with sulfonic acid groups (-SO3H). The modified powders were characterized by X-ray diffraction, adsorption measurements and infrared spectroscopy and studied upon proton conductivity by impedance spectroscopy. The powders exhibit high proton conductivities up to 10-3 S cm-1, and composite membranes with polysiloxanes and functionalized powders show good water management properties.

作者: Roland Marschall Michael Wark Michael Jeske Michaela Wilhelm Georg Grathwohl Jürgen Caro

作者单位: Institute of Physical Chemistry and Electrochemistry, Leibniz University Hanover,Callinstrasse 3A, 3 Ceramic Materials and Devices, Department of Production Engineering, University Bremen,Am Biologisch

会议类型: 国际会议

会议名称: 第15届国际分子筛大会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-12（万方平台首次上网日期，不代表论文的发表时间）