醇脱氢制酯Cu/Zn/Al/Zr催化剂的表征

醇脱氢制酯Ｃｕ／Ｚｎ／Ａｌ／Ｚｒ催化剂的表征温涛潘伟雄孙旭辉（清华大学化学系Ｃ１国家重点实验室，北京１０００８４）关键词Ｃｕ／Ｚｎ／Ａｌ／Ｚｒ催化剂，乙醇，乙酸乙酯，脱氢，表征分类号Ｏ６４３／ＴＱ４２自Ｅｌｉｏｔｔ等［１］报道在Ｃｕ／Ｚｎ／Ａｌ催化...

CHARACTERIZATION OF Cu/Zn/Al/Zr CATALYSTS FOR DIRECT SYNTHESIS OF ESTER FROM ALCOHOL

The structure, reducibility and acid base properties of a Cu/Zn/Al/Zr catalyst have been studied by BET, XRD, TPD and FT IR techniques. The results show that the surface area of the catalyst is as high as 130 m 2/g and the components of the catalyst are fully dispersed. Only one hydrogen consumption peak is found by TPR. TPD results show that there exist two types of acid sites and two types of base sites on the surface of catalysts. From the above results it is proposed that Al and Zr in the catalyst compose the sites of acid and base on the surface. It has also been found that active components can prevent copper from aggregating.