Tiwari, R.Bhat, N.S.Mal, S.S.Dutta, S.2026-02-062020Materials Today: Proceedings, 2020, Vol.46, , p. 3011-3017https://doi.org/10.1016/j.matpr.2020.12.1180https://idr.nitk.ac.in/handle/123456789/30751A series of heteropolyacid supported on ammonium Y zeolite (HPA-NH<inf>4</inf>YZ) catalysts were prepared and used for the catalytic oxidation of furfural to 2(5H)-furanone in aqueous hydrogen peroxide. The catalysts were characterized by PXRD, FTIR, TGA, and SEM analyses. The organic-solvent-free reaction was optimized on temperature, duration, loading of catalyst, and the equivalent of H<inf>2</inf>O<inf>2</inf>. The 20%PTA-NH<inf>4</inf>YZ catalyst showed the best catalytic activity giving 2(5H)-furanone in 40% isolated yield by solvent extraction under optimized conditions (20wt% cat., 100°C, 90min, 7.5eq. 30%H<inf>2</inf>O<inf>2</inf>). In addition, around 20% of succinic acid was recovered from the aqueous layer. © 2020 Elsevier Ltd. All rights reserved.2(5H)-furanoneCatalytic oxidationFurfuralPhosphotungstic acidRenewable synthesis