用电弧熔炼法合成SMAlgE，以单晶X射线衍射法测定晶体结构.晶体学及结构修正参数：化学式SMAlgE，Mr＝250.0，正交晶系，lAPTSI类型，（109）I41Md，A＝0.41957（3）nM，C＝1.4588（2）nM，V＝0.25679（4）nM3，z＝4，dX＝6.464g/CM3，μ＝35.27MM-1（λMOk＝0.07107nM），f（000）＝428，T＝296k，对于12个最小二乘修正参数和120个独立可观察衍射点r＝0.030，Wr＝0.025.此化合物中主要是Al-gE的共价结合并形成三维网络，经典极限情况下结构式可写成SM3＋Al2-gE1-，可称为“METAlICzInTlPHASE“.而yAlgE中Al-gE准二维网络为共价到金属结合过渡，几何堆积因素占了很重要地位.Zirconia rare earth based Fluorite type composite oxides have a comparable catalytic activity For CH 4 combustion to that of lanthanum metalates with perovskite structure, by which is shown the conversion of CH 4 per unit catalyst weight or per unit surFace area, the light ofF temperature, and,particularly,its quite well high temperature character.It has been shown that the activity of this new catalytic material is sensitive to the preparation process:both coprecipitation in carbonate and chemical mixing with organic acids give the better results, while the coprecipitation in hydroxides reaches only a little success.中国国家自然科学青年基金;瑞士国家自然科学基
