在微量聚乙烯吡咯烷酮(PVP)存在下,超声还原氯化钯水溶液,合成纳米Pd粒子,利用透射电镜、紫外-可见吸收光谱、X射线光电子能谱等技术对纳米Pd粒子的生长过程进行了研究.考察了PVP用量对纳米粒子形貌的影响.结果表明,当PVP与PdCl2的质量比为10:1、超声反应50min时,得到规则的单分散球型纳米Pd粒子,粒径大约8nm左右.根据紫外-可见特征吸收波峰和X射线光电子能谱中结合能的变化,提出了纳米粒子的稳定分散是借助于纳米Pd与PVP之间的配位作用来实现的.
参考文献
| [1] | Xuping Sun;Shaojun Dong;Erkang Wang .One-Step Preparation and Characterization of Poly(propyleneimine) Dendrimer-Protected Silver Nanoclusters[J].Macromolecules,2004(19):7105-7108. |
| [2] | John W;Neil Y;Richard D T et al.[J].Advanced Materials,2009,21(22):2288-2293. |
| [3] | Tian N;Zhou ZY;Sun SG;Ding Y;Wang ZL .Synthesis of tetrahexahedral platinum nanocrystals with high-index facets and high electro-oxidation activity[J].Science,2007(5825):732-735. |
| [4] | Narayanan R;El-Sayed M A .[J].Nano Letters,2004,4(07):1343-1348. |
| [5] | Han, JL;Hu, WY;Deng, HQ .Adsorption of hydrogen on palladium nanoparticle surfaces[J].Surface and Interface Analysis: SIA: An International Journal Devoted to the Development and Application of Techniques for the Analysis of Surfaces, Interfaces and Thin Films,2009(7):590-594. |
| [6] | Rao CNR.;Thomas PJ.;Edwards PP.;Kulkarni GU. .Metal nanoparticles and their assemblies [Review][J].Chemical Society Reviews,2000(1):27-35. |
| [7] | Tang XL;Jiang P;Ge GL;Tsuji M;Xie SS;Guo YJ .Poly(N-vinyl-2-pyrrolidone) (PVP)-capped dendritic gold nanoparticles by a one-step hydrothermal route and their high SERS effect[J].Langmuir: The ACS Journal of Surfaces and Colloids,2008(5):1763-1768. |
| [8] | Stephanie V;Isabel P S;Jorge P J et al.[J].Langmuir,2007,23:4606-4611. |
| [9] | Ah C S;Yun Y J;Park H J et al.[J].Chemistry of Materials,2005,17:5558-5561. |
| [10] | Xiong YJ;Washio I;Chen JY;Cai HG;Li ZY;Xia YN .Poly(vinyl pyrrolidone): A dual functional reductant and stabilizer for the facile synthesis of noble metal nanoplates in aqueous solutions[J].Langmuir: The ACS Journal of Surfaces and Colloids,2006(20):8563-8570. |
| [11] | Pardinas-Blanco I;Hoppe CE;Pineiro-Redondo Y;Lopez-Quintela MA;Rivas J .Formation of gold branched plates in diluted solutions of poly(vinylpyrrolidone) and their use for the fabrication of near-infrared-absorbing films and coatings[J].Langmuir: The ACS Journal of Surfaces and Colloids,2008(3):983-990. |
| [12] | Tsunoyama H;Sakurai H;Negishi Y et al.[J].Journal of the American Chemical Society,2005,127:9374-9375. |
| [13] | 王艳丽,谭德新,徐国财,章建忠.不使用保护气氛和还原剂超声制备纳米钯颗粒[J].材料研究学报,2007(03):329-332. |
| [14] | 谭德新,王艳丽,徐国财.纳米钯粒子的超声制备与表征[J].无机化学学报,2006(10):1921-1924. |
| [15] | Abderrafik N;Jean-Luc R .[J].Journal of Physical Chemistry B,2006,110(01):383-387. |
| [16] | Teranishi T.;Miyake M. .Size control of palladium nanoparticles and their crystal structures[J].Chemistry of Materials,1998(2):594-600. |
| [17] | Chong Min Koo;Hyeong Taek Ham;Min Ho Choi;Sang Ouk Kim;In Jae Chung .Characteristics of polyvinylpyrrolidone-layered silicate nanocomposites prepared by attrition ball milling[J].Polymer: The International Journal for the Science and Technology of Polymers,2003(3):681-689. |
| [18] | Ildiko Szaraz;Willis Forsling .Spectroscopic Study of the Simultaneous Adsorption of PVP and Azelaic Acid on #gamma#-Alumina[J].Langmuir: The ACS Journal of Surfaces and Colloids,2001(13):3987-3996. |
| [19] | 王飞,黄涛,刘汉范,童霞,于明,刁香菊,赵燕熹.微波辐照下铂纳米颗粒的形貌控制合成[J].化学与生物工程,2009(03):19-21. |
| [20] | 江成军,段志伟,张振忠,王超.不同表面活性剂对纳米银粉在乙醇中分散性能的影响[J].稀有金属材料与工程,2007(04):724-727. |
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