Preparation and characterization of ag(au) bimetallic core-shell nanoparticles with new seed growth method
文献类型：期刊论文
| 作者 | Qian, L; Yang, XR |
| 刊名 | Colloids and surfaces a-physicochemical and engineering aspects
 |
| 出版日期 | 2005-06-15 |
| 卷号 | 260期号:1-3页码:79-85 |
| 关键词 | Bimetallic Core-shell Nanoparticles Ascorbic acid Seed growth method |
| ISSN号 | 0927-7757 |
| DOI | 10.1016/j.colsurfa.2005.03.005 |
| 通讯作者 | Yang, xr() |
| 英文摘要 | Ag(au) bimetallic core-shell nanoparticles were prepared by a new seed growth method. ascorbic acid was used to reduce the complex of haucl4 and hexadecyltfmethylammoniumbromide (ctab). this resulted in the forming of colorless au(i) (aucl2-). it was used as the growth solution to prepare these bimetallic core-shell nanoparticles. these nanoparticles were characterized by uv-vis spectroscopy, transmission electron microscopy (tem) and x-ray photoelectron spectroscopy (xps). the results showed these nanoparticles exhibited core-shell shape and there was large amount of ag in the shell. these nanoparticles could be produced in a few minutes without violent stirring and the method was easy and convenient compared with others. the effect of amount of aucl2- on the shape of nanoparticles was also studied. many small gold nanoparticles were formed on the surface of bimetallic core-shell nanoparticles in the presence of excess aucl2-. the mechanisms were also proposed to explain the process of colloidal preparation. (c) 2005 elsevier b.v. all rights reserved. |
| WOS关键词 | SURFACE-ENHANCED RAMAN ; WET CHEMICAL-SYNTHESIS ; GOLD NANORODS ; SILVER NANOPARTICLES ; ASPECT-RATIO ; OPTICAL-PROPERTIES ; HOLLOW INTERIORS ; NANOWIRES ; NANOSHELLS ; NANOSTRUCTURES |
| WOS研究方向 | Chemistry |
| WOS类目 | Chemistry, Physical |
| 语种 | 英语 |
| WOS记录号 | WOS:000230714500010 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2378319 |
| 专题 | 中国科学院大学 |
| 通讯作者 | Yang, XR |
| 作者单位 | 1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qian, L,Yang, XR. Preparation and characterization of ag(au) bimetallic core-shell nanoparticles with new seed growth method[J]. Colloids and surfaces a-physicochemical and engineering aspects,2005,260(1-3):79-85. |
| APA | Qian, L,&Yang, XR.(2005).Preparation and characterization of ag(au) bimetallic core-shell nanoparticles with new seed growth method.Colloids and surfaces a-physicochemical and engineering aspects,260(1-3),79-85. |
| MLA | Qian, L,et al."Preparation and characterization of ag(au) bimetallic core-shell nanoparticles with new seed growth method".Colloids and surfaces a-physicochemical and engineering aspects 260.1-3(2005):79-85. |
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来源：中国科学院大学
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