https://scholars.lib.ntu.edu.tw/handle/123456789/406348
Title: | Fabrication and Characterization of Chitosan Nanoparticle-Incorporated Quaternized Poly(Vinyl Alcohol) Composite Membranes as Solid Electrolytes for Direct Methanol Alkaline Fuel Cells | Authors: | Li P.-C. Liao G.-M. Kumar S.R. Shih C.-M. Yang C.-C. Wang D.-M. Lue S.J. |
Keywords: | Cell performance;Chitosan nanoparticles;Direct methanol alkaline fuel cell;Methanol permeability;Quaternized poly(vinyl alcohol) (QPVA) | Issue Date: | 2016 | Journal Volume: | 187 | Start page/Pages: | 616-628 | Source: | Electrochimica Acta | Abstract: | 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 |
Appears in Collections: | 化學工程學系 |
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