Fusion and alloying of (bi)metallic nanocrystals onto TiO2 nanowires in the presence of surface grafted polymer brushes
文献类型：期刊论文
| 作者 | Ye Q(叶谦) ; Hu HY(胡海媛); Wang XL(王晓龙); Yu B(于波); Zhou F(周峰)
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| 刊名 | Phys. Chem. Chem. Phys.
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| 出版日期 | 2010 |
| 卷号 | 12页码:5480-5486 |
| ISSN号 | 1463-9076 |
| 通讯作者 | 李少白 ; 周峰 |
| 中文摘要 | In present paper, the fusion of metal nanocrystals on TiO2 nanowires is studied and utilizedto synthesize bimetallic nanoparticles on nanowires. Cationic polydimethyl aminoethylmethacrylate (PDMAEMA) brushes are grafted onto TiO2 nanowires, and palladium nanocrystalsare produced by polymer brush-bound PdCl42 and subsequent in situ reduction with NaBH4 inhigh density and low polydispersity. It is found that Pd nanocrystals of 2–3 nm starts to fuseeven at 100 1C, but are apparently obstructed by the polymer brush matrix. Nanocrystal fusionspeeds up instantly after polymer decomposition degradation at temperatures above 300 1C.By taking advantage of the polymer brush technique successive, templated uploading ofdifferent nanoparticles and fusion, Pd–Au bimetallic nanoparticles or alloys are formed on TiO2nanowires. The results provide a novel method towards TiO2 nanowire supported (bi)metallicnanoparticles and have hinted at practical uses for elucidating the catalytic behavior of the composites. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | “Top Hundred Talents” Program of CAS;Key Project of NSFC (20973188, 50835009);“973” (2007CB607601) |
| 语种 | 英语 |
| WOS记录号 | WOS:000277689500032 |
| 公开日期 | 2012-09-28 |
| 源URL | [http://210.77.64.217/handle/362003/1048]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 通讯作者 | Zhou F(周峰) |
| 推荐引用方式 GB/T 7714 | Ye Q,Hu HY,Wang XL,et al. Fusion and alloying of (bi)metallic nanocrystals onto TiO2 nanowires in the presence of surface grafted polymer brushes[J]. Phys. Chem. Chem. Phys.,2010,12:5480-5486. |
| APA | 叶谦,胡海媛,王晓龙,于波,&周峰.(2010).Fusion and alloying of (bi)metallic nanocrystals onto TiO2 nanowires in the presence of surface grafted polymer brushes.Phys. Chem. Chem. Phys.,12,5480-5486. |
| MLA | 叶谦,et al."Fusion and alloying of (bi)metallic nanocrystals onto TiO2 nanowires in the presence of surface grafted polymer brushes".Phys. Chem. Chem. Phys. 12(2010):5480-5486. |
入库方式： OAI收割
来源：兰州化学物理研究所
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