Scalzullo Stefania, Mondal Kartick, Witcomb Mike, Deshmukh Amit, Scurrell Mike, Mallick Kaushik
School of Chemistry, University of the Witwatersrand, Private Bag 3, WITS 2050, South Africa.
Nanotechnology. 2008 Feb 20;19(7):075708. doi: 10.1088/0957-4484/19/7/075708. Epub 2008 Jan 31.
A single-step synthesis route is described for the preparation of a metal-polymer composite in which palladium acetate and meta-amino benzoic acid were used as the precursors for palladium nanoparticles and poly(meta-amino benzoic acid) (PABA). The palladium nanoparticles were found to be uniformly dispersed and highly stabilized throughout the macromolecule matrix. The resultant composite material was characterized by means of different techniques, such as IR and Raman spectroscopy, which provided information regarding the chemical structure of the polymer, whereas electron microscopy images yielded information regarding the morphology of the composite material and the distribution of the metal particles in the composite material. The composite material was used as a catalyst for the ethylene hydrogenation reaction and showed catalytic activity at higher temperatures. TEM studies confirmed the changed environment of the nanoparticles at these temperatures.
描述了一种制备金属-聚合物复合材料的单步合成路线，其中醋酸钯和间氨基苯甲酸用作钯纳米颗粒和聚（间氨基苯甲酸）（PABA）的前体。发现钯纳米颗粒在整个大分子基质中均匀分散且高度稳定。通过不同技术对所得复合材料进行了表征，如红外和拉曼光谱，其提供了有关聚合物化学结构的信息，而电子显微镜图像则给出了有关复合材料形态以及金属颗粒在复合材料中分布的信息。该复合材料用作乙烯加氢反应的催化剂，在较高温度下显示出催化活性。透射电子显微镜研究证实了这些温度下纳米颗粒环境的变化。
