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溶剂热法制备纳米Pb(Zr_0.52Ti_0.48)O₃粉体

Solvothermal Synthesis of Nanocrystalline Pb(Zr_0.52Ti_0.48)O₃ Powders

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【Author】 Jia Jinjie1,Liu Xiaolin1,Liu Yang1,Chen Jianfeng1,2(1.Key Lab for Nanomaterials Ministry of Education,Beijing University of Chemical Technology,Beijing 100029,China)(2.Research Center of the Ministry of Education for High Gravity Engineering and Technology,Beijing University of Chemical Technology,Beijing 100029,China)

【机构】北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室；北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室北京100029；北京100029；北京100029北京化工大学；教育部超重力工程研究中心；

【摘要】以硝酸铅、氧氯化锆、四氯化钛、氢氧化钾和氨水为原料,以乙醇和水的混合液为溶剂,采用溶剂热法合成了纳米Pb(Zr0.52Ti0.48)O3粉体。通过XRD和TEM对粉体进行了表征,并研究了醇水比(Vethanol/Vwater)和温度对粉体物相和粒径的影响。研究结果表明:在180℃、醇水比1:1以及KOH为2mol/L的条件下,可以制备粒径约为10nm的PZT粉体;适量乙醇的加入有利于合成纳米PZT粉体并降低生成PZT所需的温度。更多还原

【Abstract】 Nanocrystalline Pb(Zr0.52Ti0.48)O3(PZT)powders have been synthesized by solvothermal process,in which a mixed solvent of ethanol and water was used as reactive medium and Pb(NO3)2,ZrOCl2·8H2O,TiCl4,KOH and NH3·H2O were used as reactants.The powders were characterized by means of X-ray diffraction and transmission electron microscopy(TEM).The effects of Vethanol/Vwater and temperature on powders’ morphology and particle size were studied.The results showed that PZT powders with an average particle size of 10 nm can be obtained at 180 ℃ with the alkaline concentration of 2 mol/L and Vethanol/Vwater of 1.Appropriate amount of ethanol is advantageous to produce nanocrystalline PZT powders and decrease the required temperature.更多还原