高等学校化学学报

高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (1): 1.

• 论文 •    下一篇

乙二醇甲醚-水溶液作介质水热法合成四方相ZrO2·3%Y2O3纳米晶

陈代荣, 徐如人   

  1. 吉林大学化学系, 长春, 130023
  • 收稿日期:1997-01-09 出版日期:1998-01-24 发布日期:1998-01-24
  • 通讯作者: 徐如人
  • 作者简介:陈代荣,男,30岁,博士研究生.
  • 基金资助:

    吉林大学无机合成与材料制备开放实验室资助课题.

Hydrothermal Synthesis of Nanocrystalline ZrO2·3%Y2O3 Powders with a Tetragonal Phase from 2-Methoxyethanol-water System

CHEN Dai-Rong, XU Ru-Ren   

  1. Department of Chemistry, Chemistry, Jilin University, Changchun, 130023
  • Received:1997-01-09 Online:1998-01-24 Published:1998-01-24

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摘要： 利用新沉淀的Zr(OH)4·3%Y(OH)3·nH2O作前驱体,以乙二醇甲醚-水溶液作反应介质,水热法合成了四方相ZrO2·3%Y2O3纳米晶,考察了反应介质、pH值、反应温度及Cl-、NO3-和SO42-;对产物的影响.前驱体对产物物相有重要影响,形成四方相ZrO2·3%Y2O3的反应介质的pH值随介质中水和醇相对含量的不同而变化;晶化温度越高,产物颗粒度越小;醇含量越高,颗粒间团聚程度越低;Cl-、NO3-及SO42-;对产物颗粒的影响随醇含量的增加而减小.

关键词: 水热法, 四方相ZrO2·, 3%Y2O3, 纳米晶

Abstract: The nanocrystalline ZrO2·3%Y2O3 powders with a tetragonal phase were hydrothermally synthesized from Zr(OH)4·3%Y(OH)3·nH2O using 2-methoxyethanol-water solution as the media. The effects of the constituents of media, pH and reaction temperature and time on ZrO2·3%Y2O3 particles were investigated. The results indicate that pHof the media are different due to the various constituents of the media. The higher the 2-methoxyethanol content, the lower the agglomeration of the primary particles. The higher the reaction temperature, the smaller the particles. The anions such as Cl-, NO3- and SO42- have an important impact on the product particles.

Key words: Hydrothermal method, Tetragonal phase-ZrO2·3%Y2O3, Nanocrystallites

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