Co-Fe纳米氧化物的制备及催化苯酚羟基化反应研究.doc

合肥师范学院 2012 届本科生毕业论文(设计) 本科生毕业论文(设计) 题目: Co-Fe 纳米氧化物的制备及催化苯酚羟基化反应研究系部化学化工系学科门类化学专业化学学号 0809111009 姓名管孝梅指导教师李健 2012 年 5月 10日装订合肥师范学院 2012 届本科生毕业论文(设计) Co-Fe 纳米氧化物的制备及催化苯酚羟基化反应研究摘要本文主要采用溶胶-凝胶法制备 Co-Fe 纳米氧化物,然后分别在 600 ℃和800 ℃下烘焙, 对烘焙后的复合金属氧化物微结构使用 X-射线衍射(XRD )和透射电子显微镜(TEM)进行表征。根据文献资料可知纳米氧化物具有催化性能,因此用所制备的 Co-Fe 纳米氧化物催化苯酚羟基化反应研究其催化性能,通过改变反应体系溶剂、催化剂、催化剂用量、反应温度和反应时间做了一系列条件实验,用液相色谱检测结果,根据检测结果分析不同条件下苯酚的转化率和选择性,由实验分析结果可知 Co-Fe 纳米氧化物具有催化性且在水溶剂中60℃下反应 4个小时转化率和选择性最高。关键词: Co-Fe 纳米氧化物催化性苯酚羟基化反应合肥师范学院 2012 届本科生毕业论文(设计) ABSTRACT This paper mainly use sol-gel method to prepared Co-Fe manometer oxide, then divided it into two groups for baking respectively at600 degrees and 800 degrees . By using X- ray diffraction (XRD) and transmission electron microscopy (TEM) to characterize plex metal oxide's microstructure . According to the literature meterial we known that the manometer oxide has catalytic properties, so we use Co-Fe manometer oxide catalytic which we had prepared to catalytic the hydroxylation of phenol to study its catalytic performance, by changing the reaction solvent,catalytic,the amount of catalytic ,reaction temperature, reaction time todoa series of experiments, then using liquid chromatography to detect the results, according to the analysis of test results we can know phenol's conversion and selectivity under different conditions , the experimental analysis results indicate that the Co-Fe manometer oxide has catalytic property and in aqueous solution under 60 degrees temperature react 4 hours its conversion and selectivity are the highest. Key words: Co-Fe manometer oxide catalytic hydroxylation of phenol 合肥师范学院 2012 届本科生毕业论文(设计) 目录一引言……………………………………………………………… 1 纳米材料催化剂…………………………………………………1 纳米催化材料的发展………………………………………… 1 纳米金属氧化物……………………………………………… 1 纳米金属氧化物制备方法…………………………………… 1 苯酚羟基化………………………………………………………2 合成苯二酚的发展…………………………………………… 2 合成苯二酚的方法…………………………………………… 2 本文研究思路…………………………………………………… 2 二实验部分………………………………………………………… 4 实验药品………………