Electrochemical activities of Pt-Ru-Co and Pt-Ru-Ni electrocatalysts supported by a carbon fiber web

  • Jihye Kim
  • , Beta Zenia Poliquit
  • , Ho Seong Nam
  • , Sang Hern Kim
  • , Yong Min Lee
  • , Kwang Man Kim
  • , Jang Myoun Ko

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

Dynamic cyclic voltammetry is performed as functions of cycle number and potential window for the electrodeposition of Pt-Ru-Co and Pt-Ru-Ni catalysts on a carbon fiber (CF) web. Surface morphologies of the electrodeposited catalysts are observed by a scanning electron microscope. The electrochemical activity in methanol oxidation is examined by the cyclic voltammetry using a mixed aqueous solution of methanol as an electrolyte component. As the cycle number increases, both the current density and the amount of the electrodeposited metallic particles on the CF web are increased. The Pt-Ru-Ni/CF catalyst prepared in the potential range of -0.6 to 0.2 V and from the 1:2:2 mixed solution of H 2PtCl6, RuCl3·3H2O, and Ni(NO3)2·6H2O, respectively, shows the higher current density, corresponding to the higher catalytic activity.

Original languageEnglish
Pages (from-to)254-258
Number of pages5
JournalCurrent Applied Physics
Volume12
Issue number1
DOIs
StatePublished - Jan 2012

Bibliographical note

Funding Information:
This research was financially supported by the Ministry of Education, Science Technology (MEST) and National Research Foundation of Korea (NRF) through the Human Resource Training Project for Regional Innovation.

Keywords

  • Carbon fiber web
  • Cyclic voltammetry
  • Electrodeposition
  • Pt-Ru-Co
  • Pt-Ru-Ni

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