摘要
A novel superacid catalyst, SO\-4\+\{2-\}/Zr\|ZSM\|11, was prepared by sulfation of the Zr\|ZSM\|11 zeolite, which was synthesized from silica\|zrconium\|TBAOH\|H\-2O system by hydrothermal method, with aqueous solution of 0.5 mol/L H\-2SO\-4 followed by calcination at 550 ℃ for 3 h in air. The catalyst was characterized by XRD, SEM , IR and TG; the acid strength of the catalyst was measured by Hammit indicators. It is shown that SO\-4\+\{2-\}/Zr\|ZSM\|11 conserves the crystal structure of ZSM\|11 zeolite with an acid strength of -13.75.
A novel superacid catalyst, SO\-4\+\{2-\}/Zr\|ZSM\|11, was prepared by sulfation of the Zr\|ZSM\|11 zeolite, which was synthesized from silica\|zrconium\|TBAOH\|H\-2O system by hydrothermal method, with aqueous solution of 0.5 mol/L H\-2SO\-4 followed by calcination at 550 ℃ for 3 h in air. The catalyst was characterized by XRD, SEM , IR and TG; the acid strength of the catalyst was measured by Hammit indicators. It is shown that SO\-4\+\{2-\}/Zr\|ZSM\|11 conserves the crystal structure of ZSM\|11 zeolite with an acid strength of -13.75.
出处
《分子催化》
EI
CAS
CSCD
北大核心
2001年第3期228-230,共3页
Journal of Molecular Catalysis(China)
基金
广东省自然科学基金资助项目
