文献类型：期刊文献

中文题名：高分散Mn-KIT-6催化剂的制备及催化性能研究

英文题名：Preparation of Highly Dispersed Mn-KIT-6 Catalysts and Their Catalysis Performance

作者：徐玉然[1];王灵灵[1];原恩临[1];金军江[1];李永生[1];赵文茹[1];李华[1];施剑林[1];施剑林[2];

机构：[1]华东理工大学材料科学与工程学院超细材料制备与应用教育部重点实验室,上海200237;[2]中国科学院上海硅酸盐研究所,上海200052;

年份：2011

卷号：69

期号：13

起止页码：1517

中文期刊名：化学学报

外文期刊名：Acta Chimica Sinica

收录：CSTPCD;;Scopus;WOS:【SCI-EXPANDED(收录号:WOS:000293602800004)】；北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家自然科学基金（No.20633090）; 教育部长江学者创新团队（No.IRT0825）资助项目

语种：中文

中文关键词：氧化锰;KIT-6;液相等体积共浸渍;高分散;酯化反应

外文关键词：manganese oxide; KIT-6; incipient wetness co-impregnation; high dispersion; etherification

摘要：以介孔分子筛KIT-6为载体,采用溶液浸渍法将乙酰丙酮锰（III）的糠醇溶液灌注到KIT-6的孔道内,一定条件下将糠醇碳化后再焙烧脱除碳,制得Mn-KIT-6催化剂.通过X射线衍射（XRD）;氮气物理吸附-脱附;紫外-可见吸收光谱（UV-Vis）;傅里叶变换红外光谱（FT-IR）;电感耦合等离子发射光谱（ICP-AES）;透射电镜（TEM）;氨气-程序升温脱附（NH3-TPD）及X射线光电子能谱（XPS）等方法对样品进行了表征.结果表明锰在KIT-6孔道内部高度分散,同时催化剂保持高度有序的孔道结构、较大的比表面积和孔容.正丁醇和乙酸的催化酯化反应结果表明,该催化剂具有很高的催化活性,反应4 h后乙酸正丁酯的产率高达97.3%,使用5次后催化剂依然具有较高的活性.
In this paper,highly dispersed Mn-KIT-6 catalysts were prepared via a simple incipient wetness co-impregnation route by casting furfurylalcohol（FA） solution of manganese（III） acetylacetonate,which were used as carbon and Mn sources,respectively,into the channels of KIT-6,followed by the subsequent removal of the carbon resulted carbonized FA.The catalysts were characterized by X-ray diffraction（XRD）,N2 adsorption-desorption,UV-visible absorption spectroscopy（UV-Vis）,Fourier transform infrared spectroscopy（FT-IR）;inductively coupled plasma emission spectroscopy（ICP-AES）,transmission electron microscope（TEM）,temperature programmed desorption of ammonia（NH3-TPD） and X-ray photoelectron spectroscopy（XPS）.The results showed that Mn species were highly dispersed onto the pore surface of KIT-6 with the well maintenance of the highly ordered meso-structure of KIT-6.The catalysts exhibited high catalytic activity in the etherification of N-butanol and acetic acid,with the yield of butyl acetate as high as 97% after 4 h reaction.The reusability and stability were demonstrated with the high activity after 5 runs.