Synthesis and Characterization of Nafion-SiO2 Composite Membrane as an Electrolyte For Medium Temperature and Low Relative Humidity

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 Membrane as an Electrolyte For Medium Temperature and Low Relative Humidity. UNDIP, UNDIP Semarang.

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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: Other
Subjects: T Technology > TP Chemical technology
Divisions: Faculty of Engineering, Science and Mathematics > School of Chemistry
Depositing User: Dr Mahreni Mahreni
Date Deposited: 26 Apr 2019 02:10
Last Modified: 26 Apr 2019 02:10
URI: http://eprints.upnyk.ac.id/id/eprint/19465

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