Deposition and STM study of nanocrystal platinum on high oriented pyrolytic graphite

Zhou Xiangyang, Zhang Fuxiang, Rajiv Srivastava

Research output: Contribution to journalConference article

Abstract

Platinum nano-particles were deposited from 0.01 M hexaxhloroplatinate acid solutions on high oriented pyrolytic graphite substrates using a cyclic potential sweeping method. The particles were examined using scanning tunneling microscopy (STM). The Pt particles deposited on the highly oriented pyrolytic graphite from a 0.01 M hexaxhloroplatinate acid without supporting solute were about 5 nm in size with a small variance. It was found that these Pt nano-particles were ellipsoidal without apparent crystalline facet but with a high density of surface defects. The Pt particles deposited on the highly oriented pyrolytic graphite from a 0.01 M hexaxhloroplatinate acid with H 2SO4 as supporting solute were about 10-100 nm in size with a much greater variance. copyright The Electrochemical Society.

Original languageEnglish (US)
Pages (from-to)57-62
Number of pages6
JournalECS Transactions
Volume1
Issue number12
DOIs
StatePublished - Dec 1 2006
EventElectrodeposition of Nanoengineered Materials - 208th Electrochemical Society Meeting - Los Angeles, CA, United States
Duration: Oct 16 2005Oct 21 2005

ASJC Scopus subject areas

  • Engineering(all)

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