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Electrochemical Behaviors of Single Gold Nanoparticles
Author(s) -
Lakbub Jude,
Pouliwe Antibe,
Kamasah Alexander,
Yang Cheng,
Sun Peng
Publication year - 2011
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201100318
Subject(s) - nanoparticle , colloidal gold , materials science , electrode , electrochemistry , particle (ecology) , nanotechnology , radius , nanometre , oxide , chemical engineering , chemistry , metallurgy , composite material , computer science , computer security , geology , oceanography , engineering
In this paper, the electrochemical behaviors of a single gold nanoparticle attached on a nanometer sized electrode have been studied. The single nanoparticle was characterized by using electrochemical methods. Since there is only one nanoparticle on the electrode, unarguable information for that sized particle could be obtained. Our preliminary results show that it becomes more difficult to oxidize gold nanoparticle or reduce gold nanoparticle oxide as the radius of the particle becomes smaller. Also, the peak potential of the reduction of gold nanoparticle oxide is proportional to the reciprocal of the radius of the particle.