纳米固体超强酸SO_4^(2-)/TiO_2-SiO_2的合成与表征  

Preparation and characterisation on SO_4^(2-)/TiO_2-SiO_2 nanosolid superacid systems

作　　者：董国臣[1] 张荣昌[1] 战瑞瑞[1] 战永复[1] 

机构地区：[1]北华大学师范理学院化学系,吉林吉林132013

出　　处：《东北师大学报（自然科学版）》2004年第2期27-31,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：吉林省科技发展计划项目(2000-0134)

摘　　要：　采用纳米化学制备技术合成了新型的纳米固体超强酸催化剂SO2-4/TiO2-SiO2,并用XRD、XPS和比表面积测定对其进行了表征.研究了影响SO2-4/TiO2-SiO2催化活性的因素及再生的条件,发现其对醋酸和脂肪醇的酯化反应具有良好的催化作用.实验结果表明,该催化剂具有耐水性强、可重复使用、再生容易、不腐蚀设备、不污染环境等优点,是很有应用前景的绿色工业催化剂.The new nanosolid superacid catalyst SO^(2-)_4/TiO_2-SiO_2 is compounded with nanometer chemical techmology. This catalyst SO^(2-)_4/TiO_2-SiO_2 has good catalytic effects on esterificational reactions of ethylic acid and emtrol.It has many other advantages such as strong water-proof quality.being able to be used repeatedly,being easy to be reclaimed,(non-corroding,)non-polluting.So it is a green industrial catalyst which is helpful to the environment and possesses wide prospect of applications.

关 键 词：纳米固体超强酸 催化酯化 环境友好 

分 类 号：O613.51[理学—无机化学]