Two-Step Synthesis of Narrow Size Distribution Nanoflowers Using a Tree-Type Multi-Amine-Head Surfactant as a Template
文献类型：期刊论文
| 作者 | Jia, Wenfeng; Li, Jinru; Lin, Guanhua; Jiang, Long |
| 刊名 | CRYSTAL GROWTH & DESIGN
 |
| 出版日期 | 2011-09-01 |
| 卷号 | 11期号:9页码:3822-3827 |
| ISSN号 | 1528-7483 |
| DOI | 10.1021/cg2003589 |
| 英文摘要 | Unique, narrow polydispersity, hierarchical gold nanoflowers were synthesized by a two-step method using a tree-type multi-amine surfactant (C18N3) as the template and ascorbic acid (AA) as the reductant. Upon the addition of a stronger reductant AA, the C18N3-HAuCl4 composite changed to a black color, due to the gold nanoflower formation. Under a specific concentration ratio of C18N3, HAuCl4, and AA, narrow polydispersity flower-like gold structures were obtained. These nanoflowers were stable as an aqueous solution for months, with no deformation to particle size and no obvious change in the surface morphology. The experimental results demonstrated that thecomplexation between C18N3 and HAuCl4 is essential for the formation of gold nanoflowers with a narrow size distribution. The morphology and size of the composites can be easily adjusted by changing the concentration of C18N3, HAuCl4, and AA. The growth of nanoflowers is discussed in terms of two steps: the formation of complexes between C18N3 and HAuCl4, which determines the core size of the nanoflowers, and the surface nanocrystal growth, due to the reduction of HAuCl4 by AA, which determines the thickness and morphology of nanoflower surface layers. In the measurement of surface-enhanced Raman scattering (SERS) using rhodamine 6G, the gold nanoflowers exhibited a significant enhancement factor, indicating their potential in biosensing and nanodevice applications. |
| 语种 | 英语 |
| WOS记录号 | WOS:000294647600025 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/71499]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Jiang, Long |
| 作者单位 | Chinese Acad Sci, Inst Chem, Key Lab Colloids & Surfaces, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Wenfeng,Li, Jinru,Lin, Guanhua,et al. Two-Step Synthesis of Narrow Size Distribution Nanoflowers Using a Tree-Type Multi-Amine-Head Surfactant as a Template[J]. CRYSTAL GROWTH & DESIGN,2011,11(9):3822-3827. |
| APA | Jia, Wenfeng,Li, Jinru,Lin, Guanhua,&Jiang, Long.(2011).Two-Step Synthesis of Narrow Size Distribution Nanoflowers Using a Tree-Type Multi-Amine-Head Surfactant as a Template.CRYSTAL GROWTH & DESIGN,11(9),3822-3827. |
| MLA | Jia, Wenfeng,et al."Two-Step Synthesis of Narrow Size Distribution Nanoflowers Using a Tree-Type Multi-Amine-Head Surfactant as a Template".CRYSTAL GROWTH & DESIGN 11.9(2011):3822-3827. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。