Journal
JOURNAL OF COLLOID AND INTERFACE SCIENCE
Volume 277, Issue 1, Pages 95-99Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2004.03.074
Keywords
phase transfer; alkylamine; metal nanoparticles; self-assembly
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A highly efficient phase-transfer method was developed to prepare alkylamine-stabilized nanoparticles of several noble metals. This method involved first mixing the metal hydrosols and an ethanol solution of dodecylamine and then extracting the dodecylamine-stabilized metal nanoparticles into toluene. The efficiency of this phase-transfer method was nearly 100%. Alkylamine-stabilized Ru, Pt, and An nanoparticles 3.45, 4.33, and 7.89 nm in diameter, respectively, could be prepared this way. The self-assembly of dodecylamine-stabilized Pt and An particles was also detected by transmission electron microscopy (TEM). (C) 2004 Elsevier Inc. All rights reserved.
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