Abstract
Abstract The reoxidation of a multicomponent molybdate catalyst is studied by thermal analysis method along with X-ray photoelectron spectroscopy (XPS). It is found that the reoxidation of the catalyst is mainly attributed to the replenishment of lattice oxygen combined with Mo. Further, the intrinsic kinetic model of this reaction is obtained by Kissinger–Akahira–Sunose isoconversional and master-plot method. The activation energy and pre-exponential factor (ln A ) are 140.01 ± 11.10 kJ mol −1 and 21.527 ± 0.076 min −1 , respectively. The kinetic model is best expressed by Avrami–Erofeyev equation, i.e., g ( α ) = [−ln(1 − α )] 1/(0.922 ± 0.026) , suggesting a nucleation and growth mechanism.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.