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Anode catalysts for the direct dimethyl ether fuel cell

  • Qing Li
  • , Gang Wu
  • , Christina M. Johnston
  • , Piotr Zelenay
  • Los Alamos National Laboratory

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

7 Scopus citations

Abstract

For the last decade, dimethyl ether (DME) has been considered a promising alternative fuel for direct fuel cells because of several advantages over methanol. In this work, PtRu catalysts with a wide range of Pt-to-Ru ratios were screened for the direct DME fuel cell (DDMEFC) performance for the first time. Overall, Pt50Ru50 performs best in the high and middle voltage ranges, whereas Pt80Ru20 performs best at low voltages. A maximum power density of 0.10 W/cm2 is achieved at a current density of 0.37 A/cm2. In spite of using gaseous DME feed, the measured performance exceeds the best previously published results. The anode activity and fuel crossover of a DDMEFC were investigated in this work and compared to those of a DMFC. The adsorption and electrooxidation of DME on Pt black catalyst were also studied in halfcell electrochemical measurements.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 11
PublisherElectrochemical Society Inc.
Pages1969-1977
Number of pages9
Edition1
ISBN (Electronic)9781607682547
ISBN (Print)9781607682547
DOIs
StatePublished - 2011
Event11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting - Boston, MA, United States
Duration: Oct 9 2011Oct 14 2011

Publication series

NameECS Transactions
Number1
Volume41
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

Conference11th Polymer Electrolyte Fuel Cell Symposium, PEFC 11 - 220th ECS Meeting
Country/TerritoryUnited States
CityBoston, MA
Period10/9/1110/14/11

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