Alkali Metal Compounds - Electric Conductivity - Crystals - Structure - Oxides - Ionic Conduction;
D O I:
10.1016/0025-5408(88)90077-3
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
New bismuth- and lead-niobates of formulas ABiNb2O7 and APb2Nb3O10 where A = Rb or Cs crystallizing in layered perovskite structures have been synthesized. The interlayer alkali ions in these compounds are easily exchanged for protons. The protonated oxides exhibit proton conductivity in the range 10-6 ohm-1cm-1 at room temperature. The formation of ABiNb2O7 compositions in layered perovskite structure in preference to pyrochlore structure is discussed.