以聚乙烯吡咯烷酮(PVP)为表面活性剂、乙二醇为溶剂,通过简易的溶剂热方法合成了银纳米线.结果表明,在反应体系中乙二醇不仅能作为溶剂,而且还能起到还原剂的作用.用XRD、SEM对产物进行了表征.考察了乙二醇和PVP用量等对银纳米线合成的影响;找出了合成的较佳条件.对银纳米线的合成机理进行了初步探讨.
Silver nanowires are prepared by a simple solvothermal reaction with ethylene glycol as solvent and poly N-vinylpyrrolidone(PVP) as surfactant.Results show that ethylene glycol not only serves as solvent but also reducing agent during the reaction.The products are characterized by XRD,SEM.The effects of the dosage of ethylene glycol and PVP on the preparation of silver nanowires are investigated in details.Results demonstrate that the dosage of ethylene glycol and PVP exert significant influence on the synthesis of silver nanowires.The optimal reaction conditions for the preparation ofthe silver nanowires are found.The possible formation mechanism for the silver nanowires is briefly discussed.
参考文献
| [1] | Clemens Burda;Xiaobo Chen;Radha Narayanan;Mostafa A.EI-Sayed .Chemistry and Properties of Nanocrystals of Different Shapes[J].Chemical Reviews,2005(4):1025-1102. |
| [2] | Xiong Y J;Wiley B J;Xia Y N .Nanocrystals with unconventional shapes-a class of promising catalysts[J].Angewandte Chemie International Edition,2007,46:7157. |
| [3] | Jun Y W;Choi J S;Cheon J .Shape control of semiconductor and metal oxide nanocrystals through nonhydrolytic colloidal routes[J].Angewandte Chemie International Edition,2006,45:3414. |
| [4] | Sun Y G;Xia Y N .Triangular naoplates of silver:synthesis,characterization,and use as sacrificial templates for generation triangular nanorings of gold[J].Advanced Materials,2003,15(09):695. |
| [5] | Lee GJ.;Shin SI.;Kim YC.;Oh SG. .Preparation of silver nanorods through the control of temperature and pH of reaction medium[J].Materials Chemistry and Physics,2004(2/3):197-204. |
| [6] | Sun Y G;Xia Y N .Large-scale synthesis of uniform silver nanowires through a soft,self-seeding,polyol process[J].Advanced Materials,2002,14:833. |
| [7] | Wu B;Heidelberg A;Boland JJ;Sader JE;Sun XM;Li YD .Microstructure-hardened silver nanowires[J].Nano letters,2006(3):468-472. |
| [8] | Luo L B;Yu S H;Qian H S et al.Large-scale fabrication of flexible silver/cross-linked poly(vinyl alcohol) coxaial nanocables by a facile solution approach[J].Journal of the American Chemical Society,2005,127:2822. |
| [9] | Hao E C;Lance Kelly K;Hupp J T et al.Synthesis of silver nanodisks using polystyrene mesospheres as templates[J].Journal of the American Chemical Society,2002,124(51):15182. |
| [10] | Park JH;Oh SG;Jo BW .Fabrication of silver nanotubes using functionalized silica rod as templates[J].Materials Chemistry and Physics,2004(2/3):301-310. |
| [11] | Im S H;Lee Y T;Wiley B et al.Large-scale synthesis of silver nanocubes:the role of HCl in promoting cube perfection and monodispersity[J].Angewandte Chemie International Edition,2005,44:2154. |
| [12] | Yu D B;Yam V W .Controlled synthesis of monodisperse silver nanocubes in water[J].Journal of the American Chemical Society,2004,126:13200. |
| [13] | Bai J W;Qin Y;Jiang C Y et al.Polymer-controlled synthesis of silver nanobelts and hierarchical nanocolumns[J].Chemistry of Materials,2007,19:3367. |
| [14] | Tsuji M;Nishizawa Y;Hashimoto M et al.Synthesis of silver nanofilms,nanorods,and naowires by a microwave-polyol method in the presence of Pt seeds and polyvinylpyrrolidone[J].Chemistry Letters,2004,33(04):370. |
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