Mahreni, Mahreni and Dewi, Eniya Listiani and Marnoto, Tjukup and Pawignyo, Harso and Subagyo, Purwo and Sulistyowati, Endang (2011) Synthesis and Characterization of Nafion-SiO2 Composite Membranes as an Electrolyte for Medium Temperature and Low Relative Humidity. Internat. J. of Sci. and Eng. Vol. 2(2):48-53, Dec. 2011, 2 (2). pp. 48-53. ISSN ISSN: 2086-5023
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Abstract
Abstract - The weakness of the Nafion membrane as electrolyte of
PEMFC associated with physical properties that is easy to shrink
at temperatures above 80°C due to dehydration. Shrinkage will
decrease the conductivity and membrane damage. Nafion-SiO2
composite membranes can improve membrane stability. The role
of SiO2 in the Nafion clusters is as water absorbent cause the
membrane remains wet at high temperatures and low humidity
and conductivity remains high. The results showed the content of
2.8 wt% of SiO2 in the Nafion membrane, the conductivity of
composite membrane is higher than the pure Nafion membrane
that are 0.127 S cm-1 in dry conditions and 0.778 S cm-1 in wet
conditions at room temperature. Compared with the pure Nafion
membrane conductivity are 0.0661 S cm-1 and 0.448 S cm-1
respectively in dry and wet conditions.
| Item Type: | Article |
|---|---|
| Subjek: | T Technology > TP Chemical technology |
| Divisions: | x. Faculty of Engineering, Science and Mathematics > School of Chemistry |
| Depositing User: | Dr Mahreni Mahreni |
| Date Deposited: | 18 Oct 2019 03:30 |
| Last Modified: | 18 Oct 2019 03:30 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/19319 |
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