钨锌多元杂多化合物的合成、表征和催化活性  

Synthesis and Characterization of Zine Tungsten Heteropoly Compound and Their Catalytic Activity

作　　者：陈玉慧 

机构地区：[1]克山县第一高级中学,黑龙江省齐齐哈尔161600

出　　处：《化工时刊》2012年第11期7-13,共7页Chemical Industry Times

摘　　要：混配型杂多化合物MXW11O39由于良好的催化作用而引人注目,由此合成了K7[AlZnW11O39·XH2O],K8[NiZnW11O39·XH2O],K8[CdZnW11O39·XH2O],K8[CuZnW11O39·XH2O]4种具有Keggin结构的钨锌杂多配合物。用红外光谱、紫外光谱等方法验证所合成的杂多配合物具有Keggin结构。其中,用红外光谱表征,其在1 000cm-1以下出现4个特征峰,分别在940 cm-1左右,870 cm-1左右,780 cm-1左右及440 cm-1左右;用紫外光谱表征,其特征吸收波长约为260 nm。用极谱研究了它们的氧化还原性质,并利用马来酸的环氧化反应研究了它们的催化活性。结果表明,它们具有较高的催化活性,是一类优良的催化剂。Mixed construction heteropoly compounds are spectacular because of their good catalysis. K7[AlZnW11O39·XH2O],K2[NiZnW11039·XH2O],K8[CdZnW11O39·XH2O],K8[CuZnW11O39·XH2O] four kinds of heteropoly compounds were sunthesized. They were zine and tungsten heteropoly compound possessing Keggin struction. It was verified by of infrared spectra and absorbing spectrum of ultraviolet. Characteristic of infrared spectra was, appearing four characteristic peaks under 1 000 cm-1 , about 940 cm -5,870 cm-1 ,780 cm-1 and 440 cm-1 , respectively. Their oxidize and deoxidize property were studied by polarograph. Further, their catalysis activity was studied by malefic acid cylic reaction.

关 键 词：杂多酸 KEGGIN结构 钨锌杂多配合物 催化活性 

分 类 号：O643.36[理学—物理化学]