摘要
用分步法制备出高纯度、高产率的混配型钼钨磷杂多酸H_3PMo_6W_6O_(40)·xH_2O晶体,并合成出4种通式为Ln[PMo_6W_6O_(40)]·xH_2O(Ln=La,Ce,Pr,Nd)钼钨混配型稀土杂多酸盐及ZnHPMo_6W_6O_(40)·xH_2O杂多酸盐。
Heteropoly molybdotungstophosphoric acids (salts) with formula Ln-PMo_6W_6O_40·xH_2O (Ln=La, Ce, Pr, Nd) and ZnHP Mo_6 W_6O_40·xH_2O were prepared and characterized by elemental analysis, IR, UV spectrometry, and x-ray diffraction.The thermal stabilities of the compounds were as follows:solid acids>rareearth salts>Zn salt.The mechanism of reduction of the heteropolyanion in aqueous solution was proposed.
出处
《应用化学》
CAS
CSCD
北大核心
1992年第1期56-60,共5页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金
关键词
钼钨磷多杂多酸
合成
性质
heter opoly compounds, Keggin structure,heteropoly molybdotungstophosphotic Acids,preparation properpics
