Composite Nafion/Zirconium Phosphate Membranes for Direct Methanol Fuel Cell Operation at High Temperature
Year: 2001
Type: article
Abstract: A direct methanol fuel cell with a composite Nafion-zirconium phosphate electrolyte membrane was investigated and exhibited good performance at operating temperatures up to ∼150°C with dry oxidant, under mild fuel preheating conditions (85°C). Typical cell resistances of 0.08 Ω cm 2 were observed under cell operation at 140-150°C. Maximum power densities of 380 and 260 mW cm 2 were achieved under oxygen and air feed, respectively. The distribution of zirconium phosphate inside the membrane was quite uniform, as shown by scanning electron microscopy energy dispersive analysis by X-ray. X-ray diffraction spectra showed modifications in the crystallographic structure of zirconium phosphate entrapped in the membrane upon hydration. © 2001 The Electrochemical Society. All rights reserved.
DOI: 10.1149/1.1353157
Institution: Princeton University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1989337597