Centrifugal Shape Sorting of Faceted Gold Nanoparticles Using an Atomic Plane-Selective Surfactant
文献类型：期刊论文
| 作者 | Tyler, TP ; Lin, PA ; Tian, Y ; Gao, HJ ; Gao, XPA ; Sankaran, RM ; Hersam, MC |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY LETTERS
 |
| 出版日期 | 2012 |
| 卷号 | 3期号:11页码:1484 |
| 关键词 | METAL NANOCRYSTALS SEPARATION CHEMISTRY GROWTH |
| ISSN号 | 1948-7185 |
| 通讯作者 | Sankaran, RM: Case Western Reserve Univ, Dept Chem Engn, Cleveland, OH 44106 USA. |
| 中文摘要 | Highly refined shape populations of gold nanoparticles (AuNPs) are important for emerging applications in catalysis, plasmonics, and nanomaterials growth. To date, research efforts have focused on achieving monodisperse shape by synthetic control or postsynthetic processing that relies on centrifugal sedimentation-based sorting schemes where differences in the particle mass and aspect ratios (e.g., rods and spheres) provide a driving force for separation. Here, we present a technique to reversibly modify the sedimentation coefficients of AuNPs possessing different shapes that would otherwise be virtually indistinguishable during centrifugal sedimentation due to their similar densities, masses, and aspect ratios by exploiting the preferential affinity of the surfactant cetyltrimethylammonium bromide (CTAB) for the Au(100) facet. The resulting tailored sedimentation coefficients enable AuNP shape sorting via density gradient centrifugation (DGC). DGC-refined populations of faceted AuNPs are shown to significantly enhance the growth rate of In As nanowires when used as seed particles, emphasizing the importance of shape control for nanomaterials growth applications. |
| 收录类别 | SCI |
| 资助信息 | ANSER Center; Energy Frontier Research Center; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001059]; National Science Foundation [CBET-0746821] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/34541]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Tyler, TP,Lin, PA,Tian, Y,et al. Centrifugal Shape Sorting of Faceted Gold Nanoparticles Using an Atomic Plane-Selective Surfactant[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2012,3(11):1484. |
| APA | Tyler, TP.,Lin, PA.,Tian, Y.,Gao, HJ.,Gao, XPA.,...&Hersam, MC.(2012).Centrifugal Shape Sorting of Faceted Gold Nanoparticles Using an Atomic Plane-Selective Surfactant.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,3(11),1484. |
| MLA | Tyler, TP,et al."Centrifugal Shape Sorting of Faceted Gold Nanoparticles Using an Atomic Plane-Selective Surfactant".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 3.11(2012):1484. |
入库方式： OAI收割
来源：物理研究所
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