Electroless Growth of Size-Controlled Gold Nanoparticles Using Hydroquinone
Electroless Growth of Size-Controlled Gold Nanoparticles Using Hydroquinone
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DOI：
10.1149/2.065207jes
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发表时间：
2012
影响因子：
3.9
通讯作者：
Shunsuke Yagi;Naoya Oeda;C. Kojima
中科院分区：
文献类型：
--
作者：
Shunsuke Yagi;Naoya Oeda;C. Kojima
制备尺寸可控的金纳米颗粒是其应用所必需的。采用平均粒径为12.5 nm的Au种子和对苯二酚进行了金纳米粒子的化学生长，并对生长过程进行了分析。对苯二酚和Au（III）离子物种的氧化还原电位的pH依赖性进行了评估，以详细研究纳米颗粒的生长机制。此外，通过测量Au纳米颗粒生长过程中Au的沉积量和混合电位，阐明了生长溶液中Au的沉积行为。通过改变Au生长溶液中Au种子的浓度实现了Au纳米颗粒的尺寸控制，允许成功地获得平均直径为38.7-63.5 nm的Au纳米颗粒。
Preparation of size-controlled gold nanoparticles is required for their use in applications. Electroless growth of gold nanoparticles using Au seeds with mean diameter of 12.5 nm and hydroquinone was performed and the growth process was analyzed. The pH dependencies of the redox potentials of hydroquinone and Au (III) ionic species were evaluated to investigate the growth mechanism of the nanoparticles in detail. Furthermore, the deposition behavior of Au in the growth solution was clarified by measuring the deposition weight of Au and the mixed potential during the growth of Au nanoparticles. Size control of Au nanoparticles was achieved by changing the concentration of Au seeds in the Au growth solution, allowing Au nanoparticles with a mean diameter of 38.7-63.5 nm to be successfully obtained.