摘要
用微波法制备了杂多阴离子柱撑水滑石，经ＸＲＤ、ＩＲ、ＥＳＲ和ＤＴＡ表征，证明制备的样品具有良好的层柱结构，其热稳定性比相应的杂多酸盐提高约４０℃，杂多阴离子中Ｃｕ￣（２＋）并非处于标准的八面体场中，而是处于一种近似于五配位的立方锥场，并随嵌入层间后更趋于五配位．
Ternary heteropoly compound was prepared by introducing cupric ion into the framework of PW12 heteropolyanion with Keggin structure. The characterization of XRD showed that the value of d001 was 1. 46 nm. The IR band of heteropolyanion was similar to that of the precausor heteropoly salt. The cupric ion in the heteropolyanion was situated in a cubic cone field with pentadentate. Its symmetry was reproduced by introducing the heteropolyanion into the hydrotalc layered region. The stability of pillared hydrotalc is higher than that of pure heteropolyanion.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1994年第5期642-645,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金
关键词
PCuW
杂多阴离子
柱撑水滑石
催化
Ternary heteropoly compound, Hydrotalc pillared with heteropolyanion, Microwave cross-linking
