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Title: X-ray synthesis of nickel–gold composite nanoparticles
Authors: YeuKuang Hwu
Chong-Cook Kim
Changhai Wang
Yung-Chin Yang
Contributors: 國立臺灣海洋大學:光電科學研究所
Keywords: X-ray induced nucleation
Ni–Au composite nanoparticles
Synchrotron radiation X-rays
Date: 2006-01
Issue Date: 2018-07-16T07:40:06Z
Publisher: Materials Chemistry and Physics
Abstract: Abstract: We developed a novel approach to prepare Ni–Au composite nanoparticles using synchrotron radiation X-rays. Ni–Au particles dispersed in aqueous solutions were synthesized with two different irradiation strategies. The first is by exposing to X-rays a mixed electroless solution of Ni and Au at two different temperatures, trying to nucleate Ni nanoparticles homogeneously at room temperature and to deposit Au subsequently on them at the high temperature of 70 °C. The second strategy is to change the pH value of the mixed solution, directly leading to the formation of Ni–Au nanoparticles. In both cases, the Ni–Au composite nanoparticles were successfully formed, as confirmed by the observed ferromagnetic behavior and by the evolution of the Au surface plasmon resonance band.
Relation: 100(2–3) pp.292-295
Appears in Collections:[Institute of Optoelectronic Sciences] Periodical Articles

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