In situ synthesis by salt–surface interaction and the catalytic functionality of the ammonium salt of 12-tungstophosphoric acid†
Abstract
The ammonium salt of 12-tungstophosphoric acid, with the Keggin structure, has been synthesized in situ on niobium phosphate (NbP) by salt–surface interaction; the catalyst exhibits high selectivity to benzaldehyde in the vapor phase air oxidation of benzyl alcohol.