| Fusion and alloying of (bi)metallic nanocrystals onto TiO2 nanowires in the presence of surface grafted polymer brushes | |
| Department | 固体润滑国家重点实验室 |
Ye Q(叶谦) ; Hu HY(胡海媛); Yu B(于波); Wang XL(王晓龙); Li SB(李少白); Zhou F(周峰)
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| 2010 | |
| Source Publication | Phys. Chem. Chem. Phys.
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| ISSN | 1463-9076 |
| Volume | 12Pages:5480-5486 |
| Abstract | 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. |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | “Top Hundred Talents” Program of CAS;Key Project of NSFC (20973188, 50835009);“973” (2007CB607601) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 材料表面与界面行为研究组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/1048 |
| Collection | 固体润滑国家重点实验室（LSL） |
| Corresponding Author | Li SB(李少白); Zhou F(周峰) |
| Recommended Citation GB/T 7714 | Ye Q,Hu HY,Yu B,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,于波,王晓龙,李少白,&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. |
| Files in This Item: | ||||||
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| 20105480-5486.pdf（1967KB） | 开放获取 | License | View Application Full Text | |||
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