Fabrication and Characterization of Chitosan Nanoparticle-Incorporated Quaternized Poly(Vinyl Alcohol) Composite Membranes as Solid Electrolytes for Direct Methanol Alkaline Fuel Cells

Pin Chieh Li, Guan Ming Liao, S. Rajesh Kumar, Chao Ming Shih, Chun Chen Yang, Da Ming Wang, Shingjiang Jessie Lue*

*此作品的通信作者

研究成果: 期刊稿件文章同行評審

136 引文 斯高帕斯(Scopus)

摘要

In this study, we designed a method for the preparation of chitosan nanoparticles incorporated into a quaternized poly(vinyl alcohol) (QPVA) matrix for direct methanol alkaline fuel cells (DMAFCs). The structural and morphological properties of the prepared nanocomposites were studied using X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), transmission electron microscope (TEM) and dynamic laser-light scattering (DLS). The crystallinity of the nanocomposite solid electrolytes containing 0 and 10% chitosan nanoparticles were investigated using differential scanning calorimetry (DSC). The electrochemical measurement of resulting nanocomposite membranes were analyzed according to the following parameters: methanol permeability, liquid uptakes, ionic conductivity and cell performances. The composite membranes with 10% chitosan nanoparticles in a QPVA matrix (CQPVA) show suppressed methanol permeability and higher ionic conductivity than pristine QPVA. In addition, the glutaraldehyde cross-linked nanocomposite film exhibited improvement on the methanol barrier property at 80 °C. The peak power density of the DMAFCs reached 67 mW cm-2 when fed into 1 M of methanol in 6 M of KOH.

原文英語
頁(從 - 到)616-628
頁數13
期刊Electrochimica Acta
187
DOIs
出版狀態已出版 - 01 01 2016

文獻附註

Publisher Copyright:
© 2015 Elsevier Ltd. All rights reserved.

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