X-ray synthesis of nickel-gold composite nanoparticles

Chong Cook Kim; Changhai Wang; Yung Chin Yang; Yeu Kuang Hwu; Seung Kwon Seol; Yong Bum Kwon; Chih Hsiung Chen; Huey Wen Liou; Hong Ming Lin; Giorgio Margaritondo; Jung Ho Je

doi:10.1016/j.matchemphys.2006.01.001

X-ray synthesis of nickel-gold composite nanoparticles

Chong Cook Kim
, Changhai Wang
, Yung Chin Yang
, Yeu Kuang Hwu
, Seung Kwon Seol
, Yong Bum Kwon
, Chih Hsiung Chen
, Huey Wen Liou
, Hong Ming Lin
, Giorgio Margaritondo
, Jung Ho Je

材料科學與工程研究所

研究成果: 期刊貢獻 › 文章 › 同行評審

24 引文斯高帕斯（Scopus）

摘要

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.

原文	English
頁（從 - 到）	292-295
頁數	4
期刊	Materials Chemistry and Physics
卷	100
發行號	2-3
DOIs	https://doi.org/10.1016/j.matchemphys.2006.01.001
出版狀態	Published - 10 12月 2006

文獻附註

Funding Information:
We wish to thank G.M. Chow for the stimulating discussion in characterizing the samples. This work was supported by MOST(KOSEF) through the National Core Research Center (Systems Bio-Dynamics) and SKORE-A projects, by the Strategic National R&D Program of Ministry of commerce, industry and energy (MOCIE), by the BK21 Project, by the National Science Council (Taiwan), by the Academia Sinica (Taiwan), by the Swiss Fonds National de la Recherche Scientifique and by the EPFL.

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10.1016/j.matchemphys.2006.01.001

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title = "X-ray synthesis of nickel-gold composite nanoparticles",

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.",

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AU - Chen, Chih Hsiung

AU - Liou, Huey Wen

AU - Lin, Hong Ming

AU - Margaritondo, Giorgio

AU - Je, Jung Ho

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N2 - 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.

AB - 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.

KW - Ni-Au composite nanoparticles

KW - Synchrotron radiation X-rays

KW - Synthesis

KW - X-ray induced nucleation

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X-ray synthesis of nickel-gold composite nanoparticles

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