Keggin结构钼磷和钼硅杂多酸盐热稳定性研究

STUDY ON THERMAL STABILITY OF MOLYBDENUM-PHOSPHORUS AND MOLYBDENUM-SILICON HETEROPOLYACID SALTS WITH KEGGIN STRUCTURE

本文用ＴＧ－ＤＴＡ、ＤＳＣ热谱、变温红外光谱、Ｘ射线衍射和溶解性实验方法，对四十一种Ｋｅｇｇｉｎ结构钼磷和钼硅杂多酸的碱金属、碱土金属、过渡金属、希土元素以及有机阳离子盐的热稳定性进行了系统的研究，初步讨论了影响热稳定性的因素．得到了一些有意义的结论．

n this paper, the thermal stability of molybdenum-phosphorus and molybdenum-silicon hcteropolyacid salts with Keggin structure, which contain base-metal, base-earth-metal,transition-metal, lanthanide and organic cations. were studied systematically by TG-DTA, DSC, IR spectra at various temperaturc, X-ray diffraction and solubility experimental method. The factors having influence on the thermal stability were explained. Some significant conclusions were obtained.