A novel characterization method for simultaneous determination of acidity and basicity of
metal oxide catalysts has been developed by using the solid-state NMR technique. Three …

Abstract Characterization of the surface acidic properties of solid acid catalysts is a key issue
in heterogeneous catalysis. Important acid features of solid acids, such as their type …

Solid acid catalysts have been widely used in petrochemical industry and their catalytic
activities are normally dictated by their acidities. Unlike conventional acidity characterization …

Solid acid catalysts have been widely used in advanced petrochemical processes because
of their environmental friendliness, high product selectivity, and easy product separation …

Pyrrole has been employed as an NMR probe molecule to determine the base strength of
solid catalytic materials; however, the quantitative correlation between the 1H chemical shift …

Molecular-level understanding of the acid/base properties of heterogeneous catalysts
requires the development of selective spectroscopic probes to establish structure–activity …

This chapter introduces the application of solid-state NMR to investigate the acid features of
solid acid catalysts, which have been widely used in advanced petrochemical processes …

Acid/base properties (type, strength, number) of a wide range of metal oxides were studied
by IR (infra-red) spectroscopy. Ammonia, pyridine and CD3CN were used as probe …

Conspectus Acid catalysis in heterogeneous systems such as metal oxides and porous
zeolites has been widely involved in various catalytic processes for chemical and …

Silica–alumina-based solid acid is one of the most popular heterogeneous catalysts utilized
in the petrochemical process and biorefining. The acid density, strength, and accessibility of …