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New metal deposition methods for electrocatalysts syntheses

  • M. B. Vukmirovic
  • , J. Zhang
  • , K. Sasaki
  • , M. Li
  • , K. More
  • , R. R. Adzic

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

    2 Scopus citations

    Abstract

    We describe three new methods of metal monolayer/multilayer deposition that make possible syntheses of new types of electrocatalysts for the O2 reduction, and H2 and ethanol oxidation reactions. They consist of a monolayer of Pt deposited on a metal, metal alloy, core-shell, or metal-oxide nanoparticles. The electrocatalysts synthesized using these methods have remarkable properties. For example, for O2 reduction reaction they show up to a 20-fold increase in Pt mass activity compared with conventional all-Pt electrocatalysts. The origin of their increased activity was identified through a combination of experimental methods, employing electrochemical and surface science techniques, X-ray absorption spectroscopy, and density functional theory calculations. The long-term tests in fuel cells demonstrated excellent stability of the anode and good stability of the cathode electrocatalysts. These new electrocatalysts promise to alleviate some of the major problems of existing fuel cell technology.

    Original languageEnglish
    Title of host publicationECS Transactions - Electrodeposition for Energy Applications
    PublisherElectrochemical Society Inc.
    Pages3-12
    Number of pages10
    Edition10
    ISBN (Electronic)9781566776677
    DOIs
    StatePublished - 2008
    EventElectrodeposition for Energy Applications - 213th Meeting of The Electrochemical Society - Phoenix, AZ, United States
    Duration: May 18 2008May 23 2008

    Publication series

    NameECS Transactions
    Number10
    Volume13
    ISSN (Print)1938-5862
    ISSN (Electronic)1938-6737

    Conference

    ConferenceElectrodeposition for Energy Applications - 213th Meeting of The Electrochemical Society
    Country/TerritoryUnited States
    CityPhoenix, AZ
    Period05/18/0805/23/08

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