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High performance direct methanol polymer electrolyte fuel cells
Author(s): Ren XM, Wilson MS, Gottesfeld S
Source: JOURNAL OF THE ELECTROCHEMICAL SOCIETY    Volume: 143    Issue: 1    Pages: L12-L15    Published: JAN 1996  
Times Cited: 269     References: 14     
Abstract: Direct methanol fuel cells (DMFCs) using Pt-Ru electrocatalysts and perfluorosulfonic acid membranes provide high performances if operated above 100 degrees C with optimized catalyst layers. A decal transfer method is used to apply thin-film catalyst/ionomer composite layers to Nafion(R) membranes. A Nafion 112 membrane/electrode assembly operating on 5 atm oxygen at 130 degrees C yields a current of 670 mA/cm(2) at 0.5 V cell voltage. Peak power density is 400 mW/cm(2). The same cell operating on 3 atm air at 110 degrees C yields 370 mA/cm(2) at 0.5 V and provides a maximum power density of 250 mW/cm(2).
Document Type: Letter
Language: English
Reprint Address: Ren, XM (reprint author), LOS ALAMOS NATL LAB, POB 1663, LOS ALAMOS, NM 87545 USA
Publisher: ELECTROCHEMICAL SOC INC, 10 SOUTH MAIN STREET, PENNINGTON, NJ 08534
Subject Category: Electrochemistry; Materials Science, Coatings & Films
IDS Number: TP726
ISSN: 0013-4651
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