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Russian Journal of Electrochemistry

, Volume 54, Issue 11, pp 809–816 | Cite as

Composition-Controllable AuPt Alloy Catalysts for Electrooxidation of Formic Acid

  • Wen-Jin Shen
  • Ji-Long Sang
  • Ling Cai
  • Yong-Jun LiEmail author
Article

Abstract

AuPt alloy catalysts with various compositions have been successfully prepared simply by one-step co-reduction of Au and Pt precursors involving sodium citrate as stabilizer and reductant. XRD, TEM and EDX element mapping analysis confirmed that the resulting AuPt nanoparticles are single-phase alloys rather than random mixtures of tiny Au and Pt particles. Compared with Pt/C, alloying Au with Pt can effectively alter the kinetic process of formic acid oxidation, reducing the generation of CO-like intermediates. Au81Pt19 displays superior electrocatalytic activity and durability, ~11 times in the mass activity better than commercial Pt/C and may be of practical significance for the commercialization of direct formic acid fuel cell.

Keywords

AuPt alloy nanoparticle controllable composition formic acid electrooxidation 

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • Wen-Jin Shen
    • 1
  • Ji-Long Sang
    • 1
  • Ling Cai
    • 1
  • Yong-Jun Li
    • 1
    Email author
  1. 1.State Key Lab of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical EngineeringHunan UniversityChangshaChina

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