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《Journal of Synthetic Crystals》 2009-01
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Study on Synthesis of Potassium Titanates by KOH Sub-molten Salts Method

LIU Yu-min1,2,LV Hua1,QI Tao2,ZHANG Yi2(1.College of Chemistry and Environmental Science,Henan Normal University,Xinxiang 453007,China;2.Institute of Process Engineering,Chinese Academy of Sciences,Beijing 100080,China)  
Three kinds of potassium titanates,namely K4Ti3O8,K2Ti2O5·0.5H2O and KTiO2(OH) were synthesized through a new method of KOH sub-molten salts in this paper.Based on the experimental results,a formation diagram had been constructed for the products synthesized in the TiO2-KOH-H2O system under atmospheric pressure with KOH concentration ranging from 55 wt% to 80 wt% and temperature ranging from 100 ℃ to 280 ℃.The effects of the reaction temperature and KOH concentration on the morphology and species of potassium titanates were investigated by using X-ray powder diffraction(XRD) and field-emission scanning electron microscopy(FESEM).
【Fund】: 国家自然科学基金项目资助(No.50574084);; 河南师范大学博士科研启动课题(No.0706)
【CateGory Index】: O614.411
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