一种Keggin构型的杂多化合物的合成与表征  

Synthesis and Characterization of a Keggin Configuration Heteropoly Compound

作　　者：王嘉山 Wang Jia-shan

机构地区：[1]吉林大学化学学院

出　　处：《化工设计通讯》2020年第2期135-135,175,共2页Chemical Engineering Design Communications

摘　　要：介绍了一种Keggin构型杂多化合物K5CoW12O40·20H2O的合成。杂多化合物大致可分为杂多化合物和杂多酸盐,由同种元素的简单含氧酸分子脱水缩合的酸称同多酸,由不同元素的含氧酸脱水缩合形成的多酸称为杂多酸,其具有组分结构确定的性质,稳定性较好,这些性质决定杂多酸可以作为优良的多相催化剂,在有机合成工业催化有着广泛应用。弱酸性环境下用过二硫酸钾氧化醋酸钴,重结晶除杂后,得到金黄棒状晶体,并通过红外光谱和XRD对产品进行表征分析。This paper describes the synthesis of a Keggin configuration heteropoly compound K5CoW12O40 · 20H2O.Heteropoly compounds can be roughly divided into heteropoly compounds and heteropoly acid salts.Among them,the acid dehydrated and condensed by a simple oxo acid molecule of the same element is called a polyacid,and the polyacid formed by dehydration and condensation of an oxo acid with a different element is called It is a heteropolyacid,which has the properties of definite component structure and good stability.These properties determine that the heteropolyacid can be used as an excellent heterogeneous catalyst and has a wide range of applications in organic synthesis industry.Under weak acid environment,potassium peroxodisulfate was used to oxidize cobalt acetate and recrystallize and remove impurities to obtain golden rod-shaped crystals.The products were characterized and analyzed by infrared spectrum and XRD.

关 键 词：杂多酸 杂多酸盐 红外光谱分析 X射线衍射分析 

分 类 号：TQ941[化学工程]