An insight into the superior performance of a gold nanocatalyst on single wall carbon nanotubes to that on titanium dioxide and amorphous carbon for the green aerobic oxidation of aromatic alcohols
Source abstract
Abstract
Gold nanocomposites based on three supports, single wall carbon nanotubes, carbon black and TiO2, were prepared using an in-situ reduction technique and characterized. They were tested for their suitability as heterogeneous catalysts in the green aerobic oxidation of 1-phenylethanol, 2-phenylethanol and benzylalcohol of industrial importance. For all reactions, the use of single wall carbon nanotubes as supports resulted in superior reaction efficiency and specificity for aldehyde to that of TiO2 and carbon black. The gold nanocatalysts can be reused over several reaction cycles with a minimal degeneration in catalytic activity. The activity of the gold nanoparticle catalyst was related to the shape and size of the gold particles and the properties of the support. The selectivity was ascribed to the functional groups on the substrate, the properties of the supports and the particle size distributions of the gold nanoparticles.
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Research context
OpenAlex topics: Catalytic Processes in Materials Science · Catalysis and Oxidation Reactions · Nanomaterials for catalytic reactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
1. Gold catalysts prepared co-precipitation for low-temperature oxidation of hydrogen and of carbon monoxide[J]10.1016/0021-9517(89)90034-1 ↗
2. Selective oxidation of D-glucose on gold catalyst[J]10.1006/jcat.2001.3497 ↗
3. Size dependence in solvent free aerobic oxidation of alcohols catalyzed by zeolite-supported palladium nanoparticles[J]10.1016/j.apcata.2007.10.008 ↗
4. Selective oxidation of glycerol to sodium glycerate with gold on carbon catalyst: an insight in to reaction selectivity[J]10.1016/j.jcat.2004.03.009 ↗
5. Oxidation reactions in the synthesis of fine and intermediate chemicals using environmentally benign oxidants and the right reactor system[J]10.1351/pac200072071273 ↗
6. Chromic acid oxidation of aromatic alcohols[J]10.1139/v69-527 ↗
7. Potassium permanganate oxidation of organic compounds[J]10.1081/SCC-200049792 ↗
8. Transition metal and organic solvent free: a highly efficient anaerobic process for selective oxidation of alcohols to aldehydes and ketones in water[J]10.1039/b509527a ↗
9. Enhancement of the selectivity of dihydroxyacetone in glycerol oxidation using gold nanoparticles supported on carbon nanotubes[J]10.1016/j.catcom.2011.09.009 ↗
10. Chemoselective catalytic oxidation of glycerol as a biorenewable source to valuable commodity chemicals[J]10.1039/B707343G ↗
11. Preparation and characterization of a composite of gold nanoparticles and single-walled carbon nanotubes and its potential for heterogeneous catalysis[J]10.1016/S1872-5805(11)60087-5 ↗
12. Mass-production of single-wall carbon nanotubes by arc discharge method[J]10.1016/S0008-6223(99)00007-X ↗
13. Supported gold catalysts prepared by in situ reduction technique: preparation, characterisation and catalytic activity measurements[J]10.1016/j.apcata.2003.09.043 ↗
14. Synthesis and spectroscopic characterization of gold nanoparticles[J]10.1016/j.saa.2007.11.012 ↗
15. In situ synthesis and characterization of multiwalled carbon nanotube/Au nanoparticles composite materials[J]10.1021/jp055834o ↗
16. Size and support dependency in the catalysis of gold[J]10.1016/S0920-5861(96)00208-8 ↗
17. Surface effect on the size evolution of surface plasmon resonances of Ag and Au nanoparticles dispersed within mesoporous silica[J]10.1016/S1386-9477(01)00171-0 ↗
18. Analysis of localised surface plasmon resonance by elastic light scattering spectroscopy of individual Au nanoparticles for surface enhanced Raman scattering[J]
19. Spontaneous reduction of metal ions on the side walls of carbon nanotubes[J]10.1021/ja026824t ↗
20. Photoinduced charge transfer processes at semiconductor electrodes and particles[J]10.1007/3-540-57565-0_75 ↗
21. Hydrogen storage by carbon materials[J]10.1016/j.jpowsour.2006.03.047 ↗
22. Efficient chemoselective alcohol oxidation using oxygen as oxidant: Superior performance of gold over palladium catalysts[J]10.1016/j.tet.2006.01.118 ↗
23. Green · Anal Chem, A practical guide to analytical method validation[Z] · 1996 · 68 · 305
24. Recyclable gold nanoparticles aerobic alcohol oxidation and C—C bond forming reaction between primary alcohols and ketones under ambient conditions[J]10.1016/j.tet.2008.12.005 ↗
25. Grafting modification of carbon black by trapping macroradicals formed by sonochemical degradation[J]10.1016/j.carbon.2007.06.052 ↗
26. EPR study of the oxidation reaction of nickel(0) phosphine complexes with Lewis and Bronstead acids[J]10.1016/j.ica.2006.01.028 ↗
27. Advances in the catalysis of Au nanoparticles[J]10.1016/S0926-860X(01)00847-X ↗
28. Size and support dependency in the catalysis of gold[J]10.1016/S0920-5861(96)00208-8 ↗
29. Trapp W B, United States Patent Office[P]. 1956, 2,700,654.
30. Young D C, United States Patent Office[P]. 1953, 2,649,462.
31. Reaction kinetics investigation of the selective oxidation of aqueous ethanol solutions with air over a Au/TiO2 catalyst[J]10.1016/j.apcatb.2012.11.039 ↗
32. Supported gold nanoparticles catalysts for solvent-free selective oxidation of benzylic compounds into ketones at 1 atm O2[J]10.1007/s10562-009-9859-4 ↗
33. Promoting gold nanocatalysts in solvent free selective oxidation of alcohols[J]10.1039/b706864f ↗
34. Solvent-free oxidation of primary alcohols to aldehydes using Au-Pd/TiO2[J]10.1126/science.1120560 ↗
35. Copper (II) catalyzed selective oxidation of primary alcohols to aldehydes with atmospheric oxygen[J]10.1016/j.tetlet.2005.11.149 ↗
36. Effect of steric hindrance and π electrons on alcohol self association[J]10.1039/FT9918701745 ↗
37. Can steric effects induce the mechanism switch in the rhodium-catayzed imine boration reaction? A density functional and ONIOM study[J]10.1021/om049156o ↗
38. March · 1992