单分散水溶性金纳米团簇的制备及表征

张明 王帅帅 朱罕 杜明亮

引用本文: 张明, 王帅帅, 朱罕, 杜明亮. 单分散水溶性金纳米团簇的制备及表征[J]. 无机化学学报, 2015, 31(10): 2015-2020. doi: 10.11862/CJIC.2015.222 shu
Citation:  ZHANG Ming, WANG Shuai-Shuai, ZHU Han, DU Ming-Liang. Preparation and Characterization of Monodispersed and Water-Soluble Gold Nano-Clusters[J]. Chinese Journal of Inorganic Chemistry, 2015, 31(10): 2015-2020. doi: 10.11862/CJIC.2015.222 shu

单分散水溶性金纳米团簇的制备及表征

    通讯作者: 张明,E-mail:zhangming@zstu.edu.cn
  • 基金项目:

    浙江省高校重中之重学科开放基金(N0.2013YXQN04)资助项目。 (N0.2013YXQN04)

摘要: 采用改进的Brust方法,用硼氢化钠还原氯金酸,并以巯基丁二酸(MSA)、氮乙酰基半光胺酸(NAC)作为包裹剂,成功制备了单分散的水溶性金纳米团簇。高分辨透射电镜(HRTEM)结果表明,增大硫醇与氯金酸的比例并增加氯金酸的初始浓度,有利于得到尺寸更小的金纳米粒子。当氯金酸的浓度(CAu)为9.3 mmol·L-1,CAu:CS为1:30时,得到了直径约为1 nm、标准偏差为0.2 nm的Au@MSA纳米团簇。结合紫外(UV)、热重(TG)和X射线光电子能谱(XPS)分析结果,可以推测出单分散金纳米簇的化学式为[Au38(MSANa)26]或[Au39(MSANa)27]。

English

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  • 收稿日期:  2015-04-10
  • 网络出版日期:  2015-06-03
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