纳米固体超酸SO42-/TiO2的研究
Studies on SO42-/TiO2 Nanosolid Superacid Systems
作者单位
战永复 北华大学师范理学院化学系,吉林 132013 
战瑞瑞 北华大学师范理学院化学系,吉林 132013 
摘要: 
关键词: 纳米固体超酸 催化酯化 环境友好
基金项目: 
Abstract: The new nanosolid superacid catalyst SO42-/TiO2 is compounded with nanometer chemical technology. This catalyst SO42-/TiO2 has good catalytic effects on esterificational reactions of ethylic acid and ethyl alcohol. It has many other advantages such as strong water-proof quality, being able to be used repeatedly, being easy to be re-claimed, non-corroding, non-polluting. So it is a green industrial catalyst which is helpful to the environment and possesses wide prospect of applications. The crystallo-process, specific surface area and sulphur content of the SO42-/TiO2 system have been studied with the method of XRD, XPS and the chemical analysis, the result of which indicates that catalytic activity and acid strength of SO42-/TiO2 is affected by the H2SO4 saturant concentration, baking temperature, precipitating condition, specific surface area and sulphur content. The best preparation conditions of SO42-/TiO2 are: ageing temperature at 0℃, 0.5mol·L-1 of H2SO4 concentration, baking temperature at 500℃and 3 hours of baking time.
Keywords: nanosolid superacid catalytic esterification environmental friendship
 
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战永复,战瑞瑞.纳米固体超酸SO42-/TiO2的研究[J].无机化学学报,2002,18(5):505-508.
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