Solvent effect on microstructure of yttria-stabilized zirconia (YSZ) particles in solvothermal synthesis
Solvent effect on microstructure of yttria-stabilized zirconia (YSZ) particles in solvothermal synthesis
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DOI：
10.1016/j.jeurceramsoc.2005.04.021
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发表时间：
2006-01-01
影响因子：
5.7
通讯作者：
Shi, Jianlin
中科院分区：
文献类型：
--
作者：
Hua, Zile;Wang, Xin M.;Shi, Jianlin
以甲醇或甲醇/异丙醇为反应介质，采用溶剂热法合成了氧化钇稳定的氧化锆（YSZ）颗粒。采用X射线衍射仪（XRD）、扫描电镜（SEM）、透射电镜（TEM）、激光衍射技术和氮气吸附等温线等对纳米粒子进行了表征。结果表明，制备的YSZ纳米晶尺寸小于5 nm，其晶粒尺寸与溶剂组成、反应温度和反应时间有关。对于相同的反应温度和反应时间。溶剂组合物还控制YSZ晶体附聚行为。根据DLVO理论和对实验结果的分析，讨论了溶剂热合成过程中溶剂对YSZ颗粒微观结构的影响。此外，还对溶剂热合成过程中颗粒微观结构的演变机理进行了探讨。(c)2005爱思唯尔有限公司保留所有权利。
Using methanol or methanol/2-propanol mixtures as reaction media, yttria-stabilized zirconia (YSZ) particles were synthesized with a solvothermal route. The particles were characterized with X-ray diffractometry (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), laser diffraction technique, and nitrogen adsorption isotherms. Results indicated that cubic/tetragonal YSZ nanocrystals with crystal size lower than 5nm were obtained and the crystal size depends on solvent composition, reaction temperature and reaction time. For the same reaction temperature and reaction time. the solvent composition also controls YSZ crystal agglomeration behaviour. According to the DLVO theory and analysis of experimental results, the solvent effect on microstructures of YSZ particles in solvothermal synthesis has been discussed. In addition, the mechanism of particle microstructure evolution during solvothermal synthesis has been suggested. (c) 2005 Elsevier Ltd. All rights reserved.