Abstract

The existing state of Cu species play a crucial role in the activity of CuOx-Mn3O4 catalysts. In this work, CuOx-Mn3O4 with CuO loading on and Cu partially substituted Mn in spinel were successfully synthesized by adjusting the doping strategy of Cu. The CuOx-Mn3O4-IPM with substituted Cu, which derived from Cu-doped Mn-MOF-74, exhibited the largest specific surface area, the highest Mn3+ and oxygen vacancies, together with enhanced low temperature reduction performance. And thus it showed excellent catalytic activity for the mixture of toluene and acetone. The addition of a minute quantity of substituted Cu (2.60 %) significantly improved the catalytic activity of MnOx (T90%[Tol] and T90%[Ace] was increased by 23 ℃ and 37 ℃, respectively). The results of the in situ DRIFTS showed that the reaction pathway of the mixture still follows that of single toluene and single acetone over CuOx-Mn3O4-IPM.

Full Text
Published version (Free)

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 call