Abstract
The catalytic performances of Sn- and In-incorporated Mg(Al)O supported Pt catalysts with various Sn and In loadings in the range of 0.2–3.3 wt.% were comparatively investigated in propane dehydrogenation at 550 °C. Compared to Sn-incorporated ones, the introduction of In on the Pt/MgAl(In)O catalysts exhibited superior catalyst stability and propylene yield. As confirmed by the XPS and XANES results, the intimate contact between Pt atoms and well-dispersed InOx species resulted in a more promotional electronic effect on Pt particles. On the other hand, the electron transfer effect of Sn to Pt appeared to be limited due to significant phase segregation of SnO2 observed on the catalyst surface of the Pt/MgAl(Sn)O catalysts. The predominant electronic modification of Pt particles on the Pt/MgAl(In)O catalysts had an essential impact on the inhibition of coke formation and contribution to a better tolerance against catalyst deactivation.
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.
