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《Journal of Synthetic Crystals》 2013-01
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Preparation of Gd_2Zr_2O_7 Nanoparticles by Coprecipitation Method

LI Quan1,MA Wei-min1,MA Lei1,2,ZHANG Qian1,ZHAO Xiang1,CHEN Xiang1(1.Key Laboratory of Shenyang Advanced Ceramic Preparation Technology and Application,School of Material Science and Engineering, Shenyang University of Chemical Technology,Shenyang 110142,China; 2.Institute of Metallurgy and Materials,Northeastern University,Shenyang 110004,China)  
Gd2Zr2O7 nanoparticles were synthesized by the reverse titration co-precipitation method.The influence of calcining temperature,calcining time,system temperature,pH value,initial concentration and surfactant content on the phase transformation,grain morphology and size was analyzed by XRD,SEM,TEM and TG-DSC.The results show that the five factors of Gd2Zr2O7 have no effect on the phase change,the powders are approximately spherical particles with even particle size of about 40 nm under the condition of calcining at 1100 ℃ for 3 h,when using ammonia as the precipitator to process the experiment by the reverse titration,the co-precipitation temperature is at 0 ℃,the initial concentration of mother liquor is 0.01 mol/L,the pH value is controlled at 11 and the amount of surfactant(SDBS) is 2wt%.
【Fund】: 沈阳市先进陶瓷制备技术及应用重点实验室建设项目(F12-259-1-00)
【CateGory Index】: TB383.1;O614
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