Synthesis of new ilmenite-type oxides, AgMO_3 (M=Sb,Bi) by ionexchange reacton

机译：离子交换反应合成新型钛铁矿型氧化物AgNO3（M = Sb，Bi）

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New ilmenite-type oxides, AgMO_3 (M=Sb,Bi) were prepared by ion-exchange reaction of NaBiO_3. nH_2O and KSbO_3. The hexagonal lattice parameters are a=5.323(1) and c=16.698(5)A for AgSbO_3, and a=5.641(1) and c=16.118(2)A for AgBiO_3. The crystal structure of AgBiO_3 was refined using neutron powder diffraction data nad the final R factors were R_(wp)=7.96 and R_p=6.12percent. AgSbO_3 changed from the ilmenitetype to the defect pyrochlore-type structure at 770deg C and AgBiO_3 decomposed to Ag and Bi_2O_3 above 200 deg C.

机译：通过NaBiO_3的离子交换反应制备了新的钛铁矿型氧化物AgMO_3（M = Sb，Bi）。 nH_2O和KSbO_3。六方晶格参数对于AgSbO_3为a = 5.323（1）和c = 16.698（5）A，对于AgBiO_3为a = 5.641（1）和c = 16.118（2）A。 AgBiO_3的晶体结构使用中子粉末衍射数据精制，并且最终R因子为R_（wp）= 7.96和R_p = 6.12％。 AgSbO_3在770摄氏度时从钛铁矿型转变为缺陷型烧绿石型结构，而200摄氏度以上的AgBiO_3分解为Ag和Bi_2O_3。

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《Fifth International Conference on Ion Exchange Processes held on 5-9 July 1998 at Plas Coch College, The North East Wales Institute, Wrexham, UK》|1998年|p.212-217|共6页
会议地点 Wrexham(GB)
作者
N. Kumada; N. Takahashi; N. Kinomura; A. W. Sleight;
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Synthesis of new ilmenite-type oxides, AgMO_3 (M=Sb,Bi) by ionexchange reacton

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