Abstract
The effect of Re and Cs co-promotion of Ag catalysts for ethylene epoxidation is studied computationally using density functional theory approach. The models reflecting Re involvement in the form of oxyanion and as a component of Ag—Re alloys are considered. The synergistic effect of Cs and Re is caused by the formation of the CsReOx species, with Cs stabilizing the Re oxyanion to promote ethylene epoxidation over Ag catalysts. The role of Re is proposed to be related to altering the electron density distribution, compensating oxygen vacancies, covering non-selective sites, and providing the optimal retention time for initial compounds, products, and oxametallacycles on the catalyst surface.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
