The modification of titanium in mesoporous silica for Co-based Fischer–Tropsch catalysts

作     者：Xin Li Meng Su Yao Chen Mehar UNisa Ning Zhao Xiangning Jiang Zhenhua Li Xin Li;Meng Su;Yao Chen;Mehar U.Nisa;Ning Zhao;Xiangning Jiang;Zhenhua Li

作者机构：Key Lab for Green Chemical Technology of Ministry of EducationSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin)Tianjin UniversityTianjin 300072China Research Institute of Petroleum ProcessingSINOPECBeijing 100083China 

出 版 物：《Frontiers of Chemical Science and Engineering》 (化学科学与工程前沿（英文版）)

年 卷 期：2022年第16卷第8期

页      面：1224-1236页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 0806[工学-冶金工程] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：support from the National Natural Science Foundation of China(Grant No.22078243)and the Program of Introducing Talents of Discipline to Universities(Grant No.BP0618007) 

主　　题：Fischer–Tropsch synthesis titanium incorporation mesoporous silica metal-support interactions C5+selectivity 

摘      要：Ordered SBA-15 mesoporous silica with incorporated titanium was successfully synthesized via a onepot hydrothermal crystallization *** characterization including powder X-ray diffraction,Brunauer–Emmett–Teller,transmission electron microscope,temperatureprogrammed reduction,temperature-programmed desorption,Fourier transform infrared and ultraviolet-visible-near infrared spectrometer was performed to explore the physical and chemical structures of both the supports and the *** results showed that titanium was successfully incorporated into the mesoporous silica framework with a limited amount of titanium(Si/Ti20),and the mesoporous structure was ***,the increased titanium content inevitably resulted in the formation of anatase TiO2 particles on the support *** increased incorporated titanium strengthened the interactions between cobalt species and supports,which was favorable for the cobalt species dispersion,despite the limited cobalt oxide *** enhanced metalsupport interactions were beneficial for the CO/H2 ratio at the active cobalt sites,which facilitated the formation of more C5+*** study provides a promising method for support modification with incorporatedheteroatoms for the rational development of Fischer–Tropsch catalysts.