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二乙醇胺辅助溶胶–凝胶法低温合成锆钛酸铅纳米粉体
作者:孟庆华 朱孔军 邵斌 董娜娜 裘进浩 
单位:南京航空航天大学 机械结构力学与控制国家重点实验室 南京 210016 
关键词:锆钛酸铅 二乙醇胺 纳米粉体 溶胶–凝胶 
分类号:TQ174.4
出版年,卷(期):页码:2012,40(2):271-276
DOI:
摘要:

  要:以醋酸铅[Pb(CH3COO)2·3H2O]、硝酸锆[Zr(NO3)4·5H2O]和钛酸四丁酯[Ti(C4H9O)4]为原料,以二乙醇胺(diethanolamineDEA)为聚合剂,用溶胶凝胶法制备了锆钛酸铅(PbZrxTi1xO3PZT)纳米陶瓷粉体。研究了DEA对溶胶凝胶法合成PZT陶瓷粉体的影响。通过Fourie变换红外光谱、热重差热仪、X射线衍射仪、扫描电子显微镜和能谱仪等对所得到的粉体进行了表征。结果发现:DEA能有效促进钙钛矿相PZT结晶,最佳的DEA体积掺量为10%430 ℃便可生成纯相PZT纳米粉体,随着煅烧温度升高结晶性逐渐增强。

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Abstract: The nano-particles of lead zirconate titanate (PbZrxTi1xO3, PZT) were synthesized by a solgel method using Pb(CH3COO)2? 3H2O, Zr(NO3)4·5H2O and Ti(OC4H9)4 as starting materials. Diethanolamine (DEA) was used as a polymerizing agent. The effect of DEA on the solgel synthesis of PZT powders was investigated. The product powders were characterized by Fourier transform infrared spectroscopy, thermogravimetricdifferential thermal analysis, X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy, respectively. The results show that DEA can accelerate the transformation to perovskite, and the optimum content of DEA is 10% in volume. The phase pure PZT nano-particles were synthesized at 430 . The crystallinity could be improved when the calcination temperature was increased.

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基金项目:
国家自然科学基金(50872053,50830201,51172108);教育部新世纪优秀人才支持计划(NCET-10-0070);教育部长江学者创新团队(IRT0968);江苏高校优势学科建设工程资助项目;航空科学基金(2009ZF52058);南京航空航天大学专项科研(NJ2010010,NZ2010001)资助项目。
作者简介:
第一作者:孟庆华(1984—),男,硕士研究生。 通信作者:朱孔军(1971—),男,教授。
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