Development of electrocatalyst for anion-type polymer electrolyte fuel cell using KOH-doped polybenzimidazole

Tsuyohiko Fujigaya, Naotoshi Nakashima

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Anion-exchange membrane fuel cells (AEMFC) are emerged as a alternative technology to overcome technical and cost issues of proton-exchange membrane fuel cells (PEMFC). In the present study, we describe a new electrocatalyst for AEMFC composed of carbon nanotubes (CNTs), KOH-doped polybenzimidazole (PBI) and platinum nanoparticles (Pt), in which CNTs are wrapped by KOH-doped PBI in nanometer thickness and Pt are efficiently loaded on the wrapping layer. In the electrocatalyst, it is revealed that CNTs and KOH-doped PBI layer functions as electron- and hydroxide-conductive path, respectively, and large exposed surface of Pt are allows an effective access of the fuel gas. Membrane electrode assembly fabricated with the electrocatalyst shows a high power density of 256 mW cm-2. To the best of our knowledge, this is the highest value in the AEMFC system measured in a similar experimental condition.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 12, PEFC 2012
Pages1919-1925
Number of pages7
Edition2
DOIs
Publication statusPublished - Dec 1 2012
Event12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting - Honolulu, HI, United States
Duration: Oct 7 2012Oct 12 2012

Publication series

NameECS Transactions
Number2
Volume50
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

Other12th Polymer Electrolyte Fuel Cell Symposium, PEFC 2012 - 222nd ECS Meeting
CountryUnited States
CityHonolulu, HI
Period10/7/1210/12/12

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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