SYNTHESIS OF NEW WO3-BASED COMPLEX OXIDES WITH TUNNELS BY A CHEMICAL MIXING PROCESS USING PEROXO-POLYTUNGSTATES

被引:28
作者
KUDO, T [1 ]
KISHIMOTO, A [1 ]
OI, J [1 ]
INOUE, H [1 ]
机构
[1] MAC SCI CO LTD,HACHIOJI,TOKYO 192,JAPAN
关键词
D O I
10.1016/0167-2738(90)90072-Y
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Peroxo-polytungstate anion formed by direct reaction of metallic W with H2O2 precipitated K+, Cs+ and Ba2+. Thermal decomposition of these amorphous precipitates at moderate temperatures yielded new crystalline phases (xM2O·WO3 or xMO·WO3) with 1-D- or 3-D-tunnels based on frameworks of coner-shared WO6 octahedra. Structural analysis was performed by the Rietveld refinement of powder X-ray data. © 1990.
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页码:567 / 571
页数:5
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