硫酸钛掺杂的磷硅酸盐凝胶的制备及其中温电性能研究  

Synthesis and property of titanous sulfate doped phosphosilicate gel at intermediate temperature

作　　者：陈继堂[1] 王洪涛[1] 罗春华[1] 孙林[1] 殷榕灿[1] 

机构地区：[1]阜阳师范学院化学与材料工程学院环境污染物降解与监测省级重点实验室,阜阳236041

出　　处：《化工新型材料》2016年第3期141-142,共2页New Chemical Materials

基　　金：国家自然科学基金青年项目(51402052;21402029);安徽省高等学校自然科学基金项目(KJ2014A192;1508085MB21);安徽省省级机构校级委托专项研究项目(2013KJFH01;2014HJJC04;2014HJJC01ZD)

摘　　要：采用溶胶-凝胶法以正硅酸乙酯、磷酸、乙醇和盐酸为原料合成了磷硅酸盐干凝胶,并研究1%(wt,质量分数)硫酸钛掺杂的磷硅酸盐凝胶的导电性能。热分析测定表明20~100℃时,样品因物理吸附水的蒸发失重,130~180℃时,样品因结构水的脱出失重。掺杂改性后样品稳定性得到了极大的增强。样品电导率测试表明在60~180℃温度内,160℃时达到最大值5.4×10^(-2)S/cm。稳定性测试表明掺杂能大大提高样品的化学稳定性。The phosphosilicate gel was synthesized using TEOS,phosphoric acid,ethyl alcohol,hydrochloric acid as raw materials by sol-gel method.The conductivity of 1wt%titanous sulfate doped phosphosilicate gel was tested.The thermal analysis testing proved thatat 20~100℃,sample for water vapor evaporation was observed.At 130~180℃,weight loss for physical adsorption of water vapor was also observed.It revealed that the stability of 1 wt% titanous sulfate doped phosphosilicate gel was greatly enhanced.The plot of the total conductivities of sample in air at 60~180℃ showed that its maximum value was 5.4×10^（-2）S·cm^（-1） at 160℃.Determination of the sample stability proved that doping can greatly improve the chemical stability of sample.

关 键 词：磷硅酸盐凝胶 电导率 溶胶-凝胶法 热分析 

分 类 号：O648.17[理学—物理化学]