【作者】 洪广言； 王丽萍； 董相廷； 余大书； 孙小琳；

【Author】 Hong Guangyan Wang Liping Dong Xiangting Yu Dashu~+ Sun Xiaolin~(++) (Changchun Institute of Applied Chemistry,Changchun,130022,China) (+ Ha’erbin Industrial University,Ha’erbin,150000,China) (++ The Institute of Modern Optics,Nankai University,Tianjing,300071,China)

【机构】 中国科学院长春应用化学研究所； 哈尔滨工业大学； 南开大学现代光学所；

【摘要】 <正>1引言溶胶—凝胶(Sol-gel)技术作为在低温和温和条件下合成无机化合物或制备无机材料的重要方法,具有许多独特的优点:(1)由于在溶胶—凝胶法中所用的原料首先被分散在溶剂中而形成低粘度的溶液,因此就可以在很短的时间内获得分子水平上的均匀性。在形成凝胶时,反应物之间也是在分子水平上被均匀地更多还原

【Abstract】 Sol-gel technology,as an important method of synthesizing inorganic compounds and materials at low temperature and mild conditions,has many advertages:(1)The reactants used in the sol-gel method disperses in the solvent and then forms less viscous solution.It is well-distributed at the degree of molecular level in a short time.When gel formed,reactants are also well-mixed at the molecular level.(2)During the process of the reaction in solution,it is easy to dope some trace elements and achieve the doping at the degree of molecular level.(3)Contrast with the solid state reaction,the reaction in the sol-gel system carries on easily at lower temperature.It is generally believed the disperse of the reactants limits in nanometer range in the sol-gel system and limits in micron range in the soliid state reaction.So the reaction carries on easily at lower temperature. (4)Many kinds of materials,espesially,the functional materials can be prepared by this method.(5)The sol-gel technology is simple and doesn’t require expensive equipments.The sol-gel technology has so many adventages that it is widely studied and used in synthesizing functional materials.更多还原