摘要
制备了层间阳离子为一价(Li^+,Na^+,K^+,Rb^+,Cs^+),二价(Mg^(2+),Ca^(2+),Sr^(2+),Ba^(2+))和三价(Y^(3+),La^(3+),Nd^(3+),Eu^(3+))离子的蒙脱石,研究了不同层间阳离子对蒙脱石性质的影响。蒙脱石的吸附水和层间水的脱去随层间阳离子种类的不同而表现为单一或两阶段脱水过程。层间阳离子的电价对蒙脱石电导率的影响远大于离子半径的影响。
The montmorillonites with different layer cations(monovalent Li,Na,K,Rb,Cs;divalent Mg,Ca,Sr,Ba:and trivalent Y,La,Nd,Eu)were prepared by ionexchange method and the influence of the layer cations on the properties of themontmorillonites were investigated.The dehydration of the adsorption and layer wa-ter of the montmorillonites could occur as a mono-process or in two stages depend-ing on the different layer catons.The electrical charges of the layer cations hadmuch stronger influence on the conductivity of the montmorillonites than their ionicradii had.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第1期87-92,共6页
Journal of Inorganic Materials
基金
国家自然科学基金
关键词
蒙脱石
固体电解质
离子电导
Montmorillonites
Solid electrolyte
Ionic conductivity
