Affordable Access

Access to the full text

Electrocatalytic reduction of oxygen: Gold and gold-platinum nanoparticle catalysts prepared by two-phase protocol

Authors
  • Maye, Mathew M.1
  • Kariuki, Nancy N.1
  • Luo, Jin1
  • Han, Li1
  • Njoki, Peter1
  • Wang, Lingyan1
  • Lin, Yan1
  • Naslund, H. Richard2
  • Zhong, Chuan-Jian1
  • 1 State University of New York at Binghamton, Department of Chemistry, Binghamton, New York, 13902, USA , Binghamton
  • 2 State University of New York at Binghamton, Department of Geological Sciences, Binghamton, New York, 13902, USA , Binghamton
Type
Published Article
Journal
Gold Bulletin
Publisher
Springer-Verlag
Publication Date
Sep 01, 2004
Volume
37
Issue
3-4
Pages
217–223
Identifiers
DOI: 10.1007/BF03215216
Source
Springer Nature
Keywords
License
Yellow

Abstract

This paper describes recent results of an investigation of gold (Au) and gold-platinum (AuPt) nanoparticle electrocatalysts for fuel cell reaction at the cathode, i.e., oxygen reduction reaction (ORR). The Au nanoparticles and AuPt nanoparticles with different bimetallic ratios were prepared by a two-phase protocol and supported on carbon black materials. The catalysts were thermally activated under controlled calcination temperatures. The electrocatalytic ORR activities were characterized using voltammetric and rotating disk electrode techniques. We have also attempted an initial comparison of the electrocatalytic activities of our Au/C and AuPt/C catalysts with commercially-available Pt/C and PtRu/C catalysts (E-tek) under the same voltammetric measurement conditions. The results revealed important insights into the electrocatalytic activity of our catalysts, and have important implications to the design of highly active fuel cell catalysts.

Report this publication

Statistics

Seen <100 times