Michael Dyballa

TL;DR: It is found that the CuII moieties responsible for the conversion are formed in the presence of O2 and that high temperature together with prolonged activation time increases the population of such active sites, and there is a linear correlation between the reducibility of the materials and their methanol productivity.

TL;DR: In this paper, the formation and evolution of carbenium ions during the early stages of the methanol-to-olefin (MTO) conversion on a H-SAPO-34 model catalyst were clarified via 1H MAS NMR and 13C MAS NMRI.

TL;DR: Multivariate curve resolution analysis of X-ray absorption spectroscopy data is applied to accurately quantify the fraction of active Cu in Cu-MOR (MOR = mordenite), allowing an unambiguous determination of the active site nuclearity as a dicopper site.

TL;DR: In this article, the authors investigated the deactivation of a range of ZSM-5 catalysts through catalytic testing, physicochemical characterization, and powder X-ray diffraction (XRD).

TL;DR: In this paper, the effect of water molecules, nitrogen bases, and o-xylene on the hydroxyl protons of bridging AlOH groups and framework aluminum was investigated.