Open AccessA Graphite Oxide Paper Polymer Electrolyte for Direct Methanol Fuel Cells
Author(s) -
Ravi Kumar,
Mohamed Mamlouk,
Keith Scott
Publication year - 2011
Publication title -
international journal of electrochemistry
Language(s) - English
Resource type - Journals
eISSN - 2090-3537
pISSN - 2090-3529
DOI - 10.4061/2011/434186
Subject(s) - graphene , graphite oxide , electrolyte , oxide , graphite , materials science , methanol , electrochemistry , current density , proton exchange membrane fuel cell , electrode , power density , polymer , chemical engineering , membrane , fuel cells , nanotechnology , composite material , chemistry , organic chemistry , power (physics) , metallurgy , physics , quantum mechanics , engineering , biochemistry
A flow directed assembly of graphite oxide solution was used in the formation of free-standing graphene oxide paper of approximate thickness of 100 μm. The GO papers were characterised by XRD and SEM. Electrochemical characterization of the GO paper membrane electrode assembly revealed proton conductivities of 4.1 × 10−2 S cm−1 to 8.2 × 10−2 S cm−1 at temperatures of 25–90°C. A direct methanol fuel cell, at 60°C, gave a peak power density of 8 mW cm−2 at a current density of 35 mA cm−2
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