Mesoporous 12-tungstophosphoric acid/activated bentonite catalysts for oxidation of 2-propanol
Source abstract
Abstract
Abstract In the present study, the effect of 12-tungstophosphoric acid (HPW) immobilisation on the catalytic activity of H3PW12O40/mesoporous acid-activated bentonite catalysts (AAB) was investigated. The catalysts were characterised by XRD, IR, SEM and BET, and the activity of acid-activated bentonite catalysts with various loadings of HPW were studied in the conversion of vapour-phase 2-propanol. The results indicated that the conversion of 2-propanol increased substantially as the temperature increased from 343 K to 553 K. Alternatively, the conversion and selectivity of the reaction increased with an increase in the HPW concentration. Moreover, the proposed catalysts enhanced the oxidation of 2-propanol to acetone and suppressed the acid-catalysed dehydration of propanol to propylene.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Polyoxometalates: Synthesis and Applications · Catalysis and Oxidation Reactions · Mesoporous Materials and Catalysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (21)
Show source-provided references
1. The determination of pore volume and area distributions in porous substances. I. Computations from nitrogen isotherms10.1021/ja01145a126 ↗
2. Synthesis of pharmaceutical intermediates by toluene benzylation over heteropoly acids on different support10.1016/S1003-9953(07)60046-2 ↗
3. Acid activation and bleaching capacity of bentonites from the islands of Milos and Chios, Aegean, Greece10.1016/S0169-1317(97)00017-3 ↗
4. Acidity tuning of montmorillonite K10 by impregnation with dodecatungstophos-phoric acid and hydroxyalkylation of phenol10.1016/j.clay.2009.11.042 ↗
5. Characterization of acid-treated bentonite. Reactivity, FTIR study and 27Al MAS NMR10.1023/A:1019064930150 ↗
6. Preparation and characterization of heteropolyacid/mesoporous carbon catalyst for the vapor-phase 2-propanol conversion reaction10.1016/j.cattod.2005.10.048 ↗
7. PMo12−nVnO40(3+n)− heteropolyanions as catalysts for aerobic oxidation10.1016/S1381-1169(96)00295-6 ↗
8. Sustainable heterogeneous acid catalysis by heteropoly acids10.1016/j.molcata.2006.08.072 ↗
9. 1H, 31P NMR MAS, infrared and catalytic studies of heteropolyacid H3PW12O40 supported on MgF210.1016/1381-1169(94)00003-4 ↗
10. Oxygenate reaction pathways on transition metal surfaces10.1016/S1381-1169(97)00261-6 ↗
11. t-Butylation of phenol over mesoporous aluminophosphate and heteropolyacid supported aluminophosphate molecular sieves10.1016/j.molcata.2004.03.060 ↗
12. Selective N-alkylation of aniline with methanol over a heteropolyacid on montmorillonite K1010.1016/j.clay.2009.02.011 ↗
13. Catalytic activity of tungstophosphoric acid supported on carriers of diverse acidity in the synthesis of enaminones10.1016/j.apcata.2008.10.010 ↗
14. Modeling and optimization process parameters of acid activation of bentonite by response surface methodology10.1016/j.clay.2009.11.043 ↗
15. Reporting physisorption data for gassolid systems with special reference to the determination of surface area and porosity10.1351/pac198557040603 ↗
16. Acid catalysis by heteropoly acids10.1016/S0926-860X(03)00386-7 ↗
17. Synergism of clay and heteropoly acids as nano-catalysts for the development of green processes with potential industrial applications10.1007/s10563-005-5997-x ↗
18. Alkylation of phenol with methyl-tert-butyl ether and tert-butanol over solid acids: efficacies of clays-based catalysts10.1016/S0926-860X(02)00300-9 ↗
19. H3PW12O40 immobilized on silylated palygorskite and catalytic activity in esterification reactions10.1016/j.clay.2009.10.014 ↗
20. Synthesis of clay minerals10.1016/j.clay.2010.06.019 ↗
21. Emerging trends and challenges in synthetic clay-based materials and layered double hydroxides10.1016/j.clay.2009.12.018 ↗