Sonochemical Formation of Ga-Pt Intermetallic Nanoparticles Embedded in Graphene and its Potential Use as an Electrocatalyst

Vijay Bhooshan Kumar, Jakkid Sanetuntikul, Pandian Ganesan, Ze'ev Porat, Sangaraju Shanmugam, Aharon Gedanken

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

The formation of Ga-Pt particles and their simultaneous embedment in graphene layers was performed by sonication of molten gallium in an aqueous solution of H2PtCl6 in the presence of graphene. X-ray analysis of the dry particles revealed that their composition was GaPt3 and GaPt2. The synthesized Ga-Pt/G was examined as an electrode material for methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). This novel electrode showed better activity for MOR and ORR than a commercial Pt/C catalyst.

Original languageEnglish
Pages (from-to)659-667
Number of pages9
JournalElectrochimica Acta
Volume190
DOIs
StatePublished - 1 Feb 2016

Keywords

  • Gallium-platinum intermetallic
  • Ultrasonic cavitation
  • graphene
  • methanol oxidation reaction
  • nanoparticles
  • oxygen reduction reaction

ASJC Scopus subject areas

  • Chemical Engineering (all)
  • Electrochemistry

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