Carbonaceous nanowire supports for polymer electrolyte membrane fuel cells

Fernando H. Garzon, Mahlon S. Wilson, Dustin Banham, Siyu Ye, Karren L. More

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Carbohydrate-dye combinations were used to form ionically-linked soft templates for the formation of polypyrrole nanowire networks. High yields of nanostructured products were obtained using small amounts of low-cost carbohydrate and dye template materials, the majority of which remained encapsulated within the nanowires. Varying the concentration and the two-part ratio of the templates influenced the length and diameter of the nanofiber segments within the nanowire network. Pyrolysis of the nanowires yielded carbonaceous fibers containing nitrogen heteroatoms, as well as convoluted graphitic domains, well suited for supporting Pt nanoparticles. The resulting high density of nucleation sites enabled the formation of smaller Pt particles compared to commercial catalysts despite significantly higher support surface loadings.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 15, PEFC 15
EditorsH. A. Gasteiger, A. Z. Weber, V. K. Ramani, T. F. Fuller, R. A. Mantz, H. Uchida, F. N. Buchi, M. Edmundson, C. Coutanceau, J. M. Fenton, S. Mitsushima, T. J. Schmidt, K. Shinohara, K. Swider-Lyons, D. J. Jones, B. S. Pivovar, K. E. Ayers, K. A. Perry, S. R. Narayanan, P. Strasser
PublisherElectrochemical Society Inc.
Pages1151-1166
Number of pages16
Edition17
ISBN (Electronic)9781607685395
DOIs
StatePublished - 2015
EventSymposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting - Phoenix, United States
Duration: Oct 11 2015Oct 15 2015

Publication series

NameECS Transactions
Number17
Volume69
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Conference

ConferenceSymposium on Polymer Electrolyte Fuel Cells 15, PEFC 2015 - 228th ECS Meeting
Country/TerritoryUnited States
CityPhoenix
Period10/11/1510/15/15

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