| 12－钨磷酸钯盐催化机理研究 |
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| 引用本文： | 格日勒.12－钨磷酸钯盐催化机理研究[J].内蒙古大学学报(自然科学版),1996(4). |
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| 作者姓名： | 格日勒 |
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| 作者单位： | 内蒙古大学化学系 |
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| 基金项目： | 日本东京工业大学小野研究室基金 |
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| 摘 要： | １２一钨磷酸钯盐与母体酸１２一钨磷酸一样具有酸催化活性．几种典型酸催化反应中把盐的催化活性分两种类型：第一类反应中不需要氢气还原便产生酸催化活性，且活性寿命长；第二类反应中有氢气存在活性才显著，活性寿命得以延长．根据ＩＲ谱推测钠盐产生Ｂ酸中心的机理可以是氢还原Ｐｄ２＋离子，也可以是Ｐｄ２＋分解结晶水而产生质子．
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| 关 键 词： | 杂多酸，12一钨磷酸，Keggin结构，酸催化作用，B酸中心 |
The Study of Acid-Catalysed Mechanism of Palladium 12-Tungstophosphorate |
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| Genie.The Study of Acid-Catalysed Mechanism of Palladium 12-Tungstophosphorate[J].Acta Scientiarum Naturalium Universitatis Neimongol,1996(4). |
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| Authors: | Genie |
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| Abstract: | PdPW (Palladium 12-Tungstophosphorate) has acid-catalysed activityies as its mother-acid HPW (12-Tungstophoshporic acid). In the several typical acid-catalysed reactions eatalystic activities of PdPW have been divided into two types. In first type of acid-catalysed reactions,activity can be produced without H reduction. Active temperature is generally lower and life of activity is longer. In second type of acid-catalysed reactions,active temperature is higher and the surface of catalyst is easily deposited carbon. The activity of PdPW in this type is only notable in the existance of H and its active life can be prolonged. According. to IR spectra of PdPW absorbed Prydin.The mechanism of PdPW producing activity can be either to reduce Pd by H or to decompose water by PdPW. |
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| Keywords: | heteroporly acids 12-tungstophosphoric acid Keggin structure acid-catalysis B acid-site surface reaction |
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