https://scholars.lib.ntu.edu.tw/handle/123456789/406365
Title: | Preparation and applications of Nafion-functionalized multiwalled carbon nanotubes for proton exchange membrane fuel cells | Authors: | Liu Y.-L. Su Y.-H. Chang C.-M. Suryani Wang D.-M. Lai J.-Y. |
Issue Date: | 2010 | Journal Volume: | 20 | Journal Issue: | 21 | Start page/Pages: | 4409-4416 | Source: | Journal of Materials Chemistry | Abstract: | Nafion-functionalized multiwalled carbon nanotubes (MWCNT-Nafion) are prepared through an ozone-mediated process. The chemical structure of MWCNT-Nafion is characterized by Raman spectroscopy, Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy. Nafion chains covering on the outer surfaces of MWCNTs in MWCNT-Nafion is observed in high-resolution transmission electron micrographs. The Nafion fraction of MWCNT-Nafion is about 12 wt%. MWCNT-Nafion is effective to prepare Nafion/MWCNT-Nafion composite membranes for proton exchange membrane fuel cells. Compared to the pristine Nafion membrane, the composite membrane with a MWCNT-Nafion loading of 0.05 wt% (N/MN-0.05) exhibits an 1.5-fold increase of mechanical strength and a five-fold increase of proton conductivity. In single cell tests, the current density at 0.6 V and the maximum power density measured with the N/MN-0.05 composite membrane are 1556 mA cm-2 and 650 mW cm-2, respectively. Both of the values are 1.5-times the values measured with a pristine Nafion membrane. ? The Royal Society of Chemistry 2010. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/406365 | ISSN: | 09599428 | DOI: | 10.1039/c000099j |
Appears in Collections: | 化學工程學系 |
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