室温固相反应制备超细碳酸钡粒子的研究  

Study on Ultrafine Barium Carbonate Particles by Solid State Reaction at Room Temperatuer

作　　者：刘树信[1] 王海滨[1] 霍冀川[2] 

机构地区：[1]绵阳师范学院,绵阳621000 [2]西南科技大学材料科学与工程学院,绵阳621010

出　　处：《人工晶体学报》2007年第4期939-942,共4页Journal of Synthetic Crystals

基　　金：四川省科技厅资助项目(04JY029-060-1);绵阳师范学院资助项目(MA2005011)

摘　　要：以BaCl2.2H2O和Na2CO3为原料,采用固相法合成了碳酸钡粒子。通过添加合适的晶形控制剂,选择合适的用量,合成了球状和针状碳酸钡粉体,利用扫描电子显微镜(SEM)和X射线衍射仪(XRD)进行了表征,结果表明:在无控制剂和添加控制剂LSX-2时,生成了球状碳酸钡粒子,添加控制剂LSX-3时,生成了针状碳酸钡粒子,且各粒子均为正交晶系碳酸钡。　Barium carbonate particles was prepared using BaCl2·2H2O and Na2CO3 by solid state reaction at room temperature.Through adding right composition and amount of the crystal form controlling agents,the barium carbonate particles with sphere-like and needle-like were synthesized.The particles had been characterized by SEM and XRD,the results indicated that when no crystalline controlling modifiers or LSX-2 was added,the barium carbonate particles with sphere-like were synthesized,and LSX-3 was added,the barium carbonate particles with needle-like were synthesized,all particles belong to orthorhombic crystal systems.

关 键 词：碳酸钡 晶形控制 合成 机理 

分 类 号：O614[理学—无机化学]