Organosulfonic acid functionalized zeolite ZSM-5 as temperature tolerant proton conducting material

Design of a new multi-functional catalytic system Ni/SO3H@zeolite-Y for three-component synthesis ofN-benzo-imidazo- or -thiazole-1,3-thiazolidinones

“…1 Recently, zeolite-NaY has used as ideal supports for homogeneous catalysts such as alkylaminopyridine-graed on HY zeolite and application in synthesis of 4H-chromenes, 4 Ni@zeolite-Y for the synthesis of 1,3thiazolidinones, 5 nano-CuY zeolite for facile synthesis of perimidines, 6 metal loaded Y-zeolite for thermo-catalytic pyrolysis of real end of life vehicle plastics waste, 7 micro-mesoporous zeolite catalysts for alkylation, 8 Cu@zeolite/magnetic for the synthesis of 1,2,3-triazoles, 9 Pd@zeolite-Y for Suzuki-Miyaura coupling of aryl halides with phenylboronic acid. 10 Given the importance of zeolite as a suitable mineral support, SO 3 H-modied mesoporous zeolites have been successfully applied in many catalytic reactions, 11 direct methanol fuel cell application 12 and as temperature tolerant proton conducting materials, 13 Furthermore, Ni-based mesoporous zeolites have been reported for catalytic synthesis for example biomass pyrolysis, 14 CO 2 methanation, 15 selective ring opening of 1-methylnaphthalene, 16 hydrodeoxygenation and hydrocracking of microalgae biodiesel 17 and etc. 5 Recently, zeolite-Y has been used as the supported surface of bi-functional nanocatalyst.…”

Highly‐efficient and low‐cost synthesis of 5‐hydroxymethylfurfural from monosaccharides catalyzed by surface treated biomass

“…Figures c and d show the XRD patterns of the catalysts obtained after carbonization and sulphonation of the raw materials microcrystalline cellulose and bagasse, respectively. The diffraction peaks in the range 20–30° became narrow and shifted to higher angles (from 23° to 25° for both c and d), suggesting that the sulphonation process caused further polymerization of the carbonized products . The smaller diffraction angle of the carbonized product from bagasse after sulphonation indicates that B‐SO 3 H had a lower polymerization degree than C‐SO 3 H, which likely decreased the weaker acid strength of the sulphonated product from bagasse more than that from microcrystalline cellulose.…”

A comparative study on the catalytic performance of different types of zeolites for biodiesel production

“…It was indicated that the zeolite with high Si/Al ratios was hydrophobic and the orderliness of surface hydrophobicity was as follows: Beta > ZSM-5 > ZRP-5. Moreover, these results were further testified by the water adsorption capacity test which was conducted following the literature (see Supporting Information Table S1) [28].…”