A General Thermal Process for the One-Step Preparation
of Well-Stable Noble Metal Nanoparticles¹

Yonglan Luo

School of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637002, Sichuan, P. R. China

e-mail: luo.yonglan@hotmail.com

Received August 14, 2007

Abstract—Heating sodium 3-thiophenemalonic acid–noble metal salt aqueous solution at 100°C, without the
extra step of introducing other reducing agents and protective agents, results in the formation of well-stable
noble metal that includes Au, Ag, Pt, or Pd nanoparticles. As-formed colloidal solutions were characterized by
UV-vis absorption spectra and transmission electron microscopy and the nanoparticle formation process was
also traced by time-dependent UV-vis absorption spectra.

DOI: 10.1134/S1061933X08050189

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