期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 35, 期 21, 页码 12141-12146出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2009.06.083
关键词
Ion-conductivity; Polyelectrolyte; Chitosan membrane
资金
- Consejo Nacional de Ciencia y Tecnologia (CONACyT) of Mexico [51735-R, 57262]
- Sistema Nacional de Investigadores (SNI-CONACyT)
- Universidad Autonoma de la Ciudad de Mexico
Ionic conductivity of crosslinked chitosan membranes was studied using techniques of molecular modeling and simulation. The COMPASS force field was used. The simulation allows the description of the mechanism of ionic conductivity along the polymer matrix. The theoretical results obtained are compared with experimental results for chitosan membranes. The analysis suggests that the conduction mechanism is portrayed by the overlapping large Polaron tunneling model. In addition, when the chitosan membrane was crosslinked with an appropriate degree of crosslinking its ionic conductivity, at room temperature, was increased by about one order of magnitude. The chitosan membranes can be used as electrolytes in solid state batteries, electric double layer capacitors and fuel cells. (C) 2009 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
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