Boosting the Formation of Bronsted Acids on Flame-made WO_x/ZrO₂ for Glucose Conversion.

ABSTRACT: Tungstate-zirconium oxide catalysts (WO_x/ZrO₂) with much higher concentrations of Brønsted acid sites (BAS) and a bigger ratio of Brønsted to Lewis acid sites (B/L) than achievable by conventional impregnation (IM) were synthesized using single-step flame spray pyrolysis (FSP). The rapid quenching and short residence time inherent to FSP prevent the accumulation of W atoms on the ZrO₂ support and thus provide an excellent surface dispersion of WO_x species. As a result, FSP-made WO_x/ZrO₂ (FSP-WO_x/ZrO₂) has a much higher surface concentration of three-dimensional Zr-WO_x clusters than corresponding materials prepared by conventional impregnation (IM-WO_x/ZrO₂). The coordinat

SUBMITTER: Zhang W 

PROVIDER: S-EPMC11696201 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature