Electrochemistry
Online ISSN : 2186-2451
Print ISSN : 1344-3542
Communications
DMFC Catalyst Layer Prepared Using Arc-Soot Nano-Carbon by Dry-Squeegee Method and Its Impedance Analysis
Shinichiro OKEYuuki IZUMITakashi IKEDAHikaru URUNOYoshiyuki SUDAHirofumi TAKIKAWASigeo ITOHTatsuo YAMAURAHitoshi UEToshihiro SAKAKIBARAShuichi SUGAWARATakashi OKAWANobuyoshi AOYAGI
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Volume 77 (2009) Issue 3 Pages 210-213

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Abstract

Micro-structure of catalyst layer influences performance of direct methanol fuel cell (DMFC). The dry-squeegee method which was a technique proposed for catalyst layer formation, was found to form a dense and uniform catalyst layer. The membrane electrode assembly (MEA) prepared by using the dry-squeegee method (MEA-ds) had a better performance than that prepared by conventional methods including dropper and brush method, since the MEA-ds had a shorter proton path from the catalyst surface to polymer membrane and many active reaction sites than other MEAs.

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© 2009 The Electrochemical Society of Japan
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