FTIR spectroscopic investigation of inorganic fillers for composite DMFC membranes

被引：80

作者：

Arico', AS ^{[1
]}

Baglio, V ^{[1
]}

Di Blasi, A ^{[1
]}

Antonucci, V ^{[1
]}

机构：

[1] ITAE Inst, CNR, I-98126 Messina, Italy

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2003年 / 5卷 / 10期

关键词：

FTIR; inorganic fillers; pH of slurry; composite membranes; DMFCs;

D O I：

10.1016/j.elecom.2003.08.007

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

An infrared spectroscopic investigation of inorganic fillers employed in composite perfluorosulfonic membranes has been carried out. The surface acidity of the fillers appears to influence the bending and stretching vibrational frequencies of the water physically adsorbed on the filler surface. The conductivity of composite membranes and maximum power density of direct methanol fuel cells (DMFCs) at 145 degreesC appear to be related to the characteristics of the water adsorbed on the filler particles. Inorganic fillers characterised by acidic properties undergo a strong interaction with water and enhance the DMFC performance at high temperature. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：862 / 866

页数：5

共 21 条

[1] Silicon oxide Nafion composite membranes for proton-exchange membrane fuel cell operation at 80-140° C [J].