NEW LAYERED PEROVSKITES - ABINB2O7 AND APB2NB3O10 (A=RB OR CS)

被引:65
作者
SUBRAMANIAN, MA
GOPALAKRISHNAN, J
SLEIGHT, AW
机构
[1] DuPont, United States
关键词
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.
引用
收藏
页码:837 / 842
页数:6
相关论文
共 13 条
  • [11] OXIDE PYROCHLORES - A REVIEW
    SUBRAMANIAN, MA
    ARAVAMUDAN, G
    RAO, GVS
    [J]. PROGRESS IN SOLID STATE CHEMISTRY, 1983, 15 (02) : 55 - 143
  • [12] SUBRAMANIAN MA, 1985, MATER RES B, V22, P957
  • [13] A NEW STRUCTURE TYPE IN THE BI2O3-NB2O5 SYSTEM
    ZHOU, W
    JEFFERSON, DA
    THOMAS, JM
    [J]. JOURNAL OF SOLID STATE CHEMISTRY, 1987, 70 (01) : 129 - 136