https://scholars.lib.ntu.edu.tw/handle/123456789/406348
標題: | Fabrication and Characterization of Chitosan Nanoparticle-Incorporated Quaternized Poly(Vinyl Alcohol) Composite Membranes as Solid Electrolytes for Direct Methanol Alkaline Fuel Cells | 作者: | Li P.-C. Liao G.-M. Kumar S.R. Shih C.-M. Yang C.-C. Wang D.-M. Lue S.J. |
關鍵字: | Cell performance;Chitosan nanoparticles;Direct methanol alkaline fuel cell;Methanol permeability;Quaternized poly(vinyl alcohol) (QPVA) | 公開日期: | 2016 | 卷: | 187 | 起(迄)頁: | 616-628 | 來源出版物: | Electrochimica Acta | 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. ? 2015 Elsevier Ltd. All rights reserved. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/406348 | ISSN: | 00134686 | DOI: | 10.1016/j.electacta.2015.11.117 |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。