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Sr(MoO4)x(WO4)1-x微晶的制备及其发光性能
The preparation of Sr(MoO4)x(WO4)1-xmicrocrystallines and their luminescent properties
【作者】 魏艳艳; 赖欣; 毕剑; 高道江; 赁敦敏; 罗怡; 李阳;
【Author】 WEI Yan-yan,LAI Xin,BI Jian,GAO Dao-jiang,LIN Dun-min,LUO Yi,LI Yang (College of Chemistry and Materials Science,Sichuan Normal University,Chengdu 610066,China)
【机构】 四川师范大学化学与材料科学学院;
【摘要】 Sr(MoO4)x(WO4)1-x固溶体微晶(x=0-0.5)是利用高温固相法合成的。XRD图谱表明这种新型的固溶体微晶为白钨矿型四方晶相结构;微晶的电镜扫描图显示其形貌为四方锥状,纯SrWO4微晶晶粒大小约为15μm,Mo取代部分W之后,即合成Sr(MoO4)0.5(WO4)0.5固溶体微晶,晶粒大小减至10μm左右,发射峰的位置移至493nm,强度也有所增加,具有较好的经济价值。
【Abstract】 Sr(MoO4)x(WO4)1-x microcrystallines(x=0-0.5) were synthesized by solid-state method.The XRD of microcrystallines showed that the crystal structure were scheelite structure with tetragonal symmetry.The surface morphology was tetragonal taper grains and the grain size of the pure SrWO4 was about 15μm.When Mo substituted for part of the W to synthesize the Sr(MoO4)0.5(WO4)0.5microcrystalline,its grain size reduced to 10μm and its emission peek located at 493nm and its strength was also increased than the pure SrWO4,which possesses high economic value.
【Key words】 Sr(MoO4)x(WO4)1-x microcrystallines; solid-state method; scheelite structure; morphology;
- 【会议录名称】 第七届中国功能材料及其应用学术会议论文集(第4分册)
- 【会议名称】第七届中国功能材料及其应用学术会议
- 【会议时间】2010-10-15
- 【会议地点】中国湖南长沙
- 【分类号】TB383.1
- 【主办单位】中国仪器仪表学会仪表材料分会、重庆仪表材料研究所、中南大学、《功能材料》期刊社