| 硅胶负载聚乙烯吡啶-聚[苯乙烯-顺丁烯二酸]-钯催化剂的结构研究 |
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| 引用本文： | 杨士勇,孙君坦,李弘,何炳林.硅胶负载聚乙烯吡啶-聚[苯乙烯-顺丁烯二酸]-钯催化剂的结构研究[J].高等学校化学学报,1989,10(9):939. |
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| 作者姓名： | 杨士勇 孙君坦 李弘 何炳林 |
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| 作者单位： | 南开大学高分子化学研究所 |
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| 摘 要： | 利用X-光电子能谱、紫外-可见光谱、电子显微镜等技术研究了硅胶负载的聚乙烯吡啶-聚苯乙烯-顺丁烯二酸]-钯催化剂的结构.发现催化剂中活性组分除钯(0)外,还存在少量钯(Ⅱ).第二种高分子的存在可以影响钯(Ⅱ)的相对含量.催化剂中钯以很小的粒子均匀分布在载体上,因此具有良好的催化加氢性能.
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| 关 键 词： | 钯催化剂 电子结合能 聚乙烯吡啶 |
| 收稿时间： | 1988-01-30 |
A Study on the Structures of Polyvinylpyridine-Poly (Styrene-Maleic Acid)-Palladium Catalysts Supported on Silica |
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| Yang Shiyong,Sun Juntan,Li Hong,He Binglin.A Study on the Structures of Polyvinylpyridine-Poly (Styrene-Maleic Acid)-Palladium Catalysts Supported on Silica[J].Chemical Research In Chinese Universities,1989,10(9):939. |
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| Authors: | Yang Shiyong Sun Juntan Li Hong He Binglin |
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| Institution: | Institute of Polymer Chemistry, Nankai University, Tianjin |
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| Abstract: | The Poly(4-vinylpyridine)(P4VP) or Poly(2-vinylpyridine) (P2VP)-Poly(styrene-maleic acid) (PSM)-palladium catalysts supported on silica were prepared.The structures of these catalysts were investigated with X-ray photoelectron spectroscopy, ultraviolet-visible spectroscopy and transmission and scanning electron microscopy etc.It is found that the catalysts were composed of both Pd(0) and Pd(Ⅱ) complexes, and the ratio of Pd(Ⅱ)/Pd(0) was affected by the presence of PSM.The palladium particles in the catalysts are well distributed on the carrier surface. |
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| Keywords: | Palladium catalyst Electron binding energy Polyvinylpyridine |
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