Journal of Materials Research

Articles

Nanoparticles of Ag, Au, Pd, and Cu produced by alcohol reduction of the salts

S. Ayyappana1, R. Srinivasa Gopalana2, G. N. Subbannaa3 and C. N. R. Raoa4 c1

a1 Materials Research Centre and CSIR Centre of Excellence in Chemistry, Indian Institute of Science, Bangalore 560012, India

a2 Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India

a3 Materials Research Centre, Indian Institute of Science, Bangalore 560012, India

a4 Materials Research Centre and CSIR Centre of Excellence in Chemistry, Indian Institute of Science, Bangalore 560012, and Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India

Abstract

Nanoparticles of Ag, Au, Pd, and Cu have been prepared by the reduction of their salts by ethyl alcohol under refluxing conditions in the presence of polyvinylpyrrolidone (PVP). In the case of Au and Cu, it was necessary to use magnesium metal as a catalyst during the reduction. The nanoparticles are in the 5–35 nm range in the case of Ag, Au, and Pd, but there is considerable agglomeration in the case of Cu even in the presence of PVP.

(Received April 25 1996)

(Accepted July 16 1996)

Correspondence:

c1 Author to whom correspondence should be addressed.

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