Highly selective oxidation of benzyl alcohol to benzaldehyde with hydrogen peroxide by cobalt aluminate catalysis: A comparison of conventional and microwave methods
Source abstract
Abstract
Abstract A comparative study of the structural, optical and catalytic properties of CoAl 2 O 4 nanoparticles is reported. Cobalt aluminate (CoAl 2 O 4 ) nano and microstructures were synthesized by both conventional and microwave methods using Sesame ( Sesamum indicum, L.,) as a plant extract. The use of Sesame extract provides an alternative method for a simple and economical synthesis of cobalt aluminate. Synthesized cobalt aluminate powder were characterized by X-ray diffraction (XRD), Fourier transform infrared spectra (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), nitrogen adsorption/desorption isotherms, diffuse reflectance spectroscopy (DRS), and photoluminescence (PL) studies. CoAl 2 O 4 prepared by the microwave method was found to possess a higher surface area, and lower crystallite size than the one prepared by the conventional method, which in turn leads to the improved performance towards the selective oxidation of benzyl alcohol to benzaldehyde.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Pigment Synthesis and Properties · Polyoxometalates: Synthesis and Applications · Nanomaterials for catalytic reactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (54)
Show source-provided references
1. Synthesis of cobalt aluminate nanopigments by a non-aqueous sol–gel route10.1039/c3nr34229h ↗
2. Blue CoAl2O4particles prepared by the sol–gel and citrate–gel methods10.1021/cm001061z ↗
3. Synthesis of metal aluminate nanoparticles by sol–gel method and studies on their reactivity10.1016/j.jallcom.2011.11.080 ↗
4. Selective oxidation of benzyl alcohol to benzaldehyde over Co-metalloporphyrin supported on silica nanoparticles10.1016/j.apcata.2012.08.029 ↗
5. Liquid phase catalytic oxidation of benzyl alcohol to benzaldehyde over vanadium phosphate catalyst10.1016/j.apcata.2011.11.016 ↗
6. Selective oxidation of benzyl alcohol to benzaldehyde with hydrogen peroxide over alkali-treated ZSM-5 zeolite catalysts10.1016/j.molcata.2009.02.035 ↗
7. Conversion of 2-octanol over nickel–alumina, cobalt–alumina, and alumina catalysts10.1016/S1381-1169(97)00018-6 ↗
8. Preparation of nanosized CoAl2O4 powders by sol–gel and sol–gel–hydrothermal methods10.1016/j.jallcom.2008.01.018 ↗
9. Cobalt spinel CoAl2O4 via sol–gel process: elaboration and surface properties10.1016/S0025-5408(00)00444-X ↗
10. CoAl2O4 mullite composites prepared by sol–gel processes10.1016/j.jeurceramsoc.2006.04.127 ↗
11. Hydrothermal synthesis and optical property of nano-sized CoAl2O4 pigment10.1016/S0167-577X(02)00378-6 ↗
12. Preparation of nanosized cobalt aluminate powders by a hydrothermal method10.1016/j.mseb.2003.11.013 ↗
13. Mossbauer and magnetization studies of nickel ferrite nanoparticles synthesized by the microwave-combustion method10.1016/j.jmmm.2013.04.064 ↗
14. Microwave assisted solution combustion synthesis of alumina–zirconia, ZTA, nanocomposite powder10.1016/j.jallcom.2010.09.176 ↗
15. Comparison of sesamin contents andCYP81Q1gene expressions in above ground vegetative organs between two Japanese sesame (Sesamum indicum L.) varietiesn differing in seed sesamin contents10.1016/j.plantsci.2010.02.020 ↗
16. Antioxidant potential of sesame (Sesamum indicum) cake extract in stabilization of sunflower and soybean oils10.1016/j.indcrop.2011.02.018 ↗
17. Annealing effects on Zn(Co) O: from para to ferromagnetic behavior10.1021/cm802605u ↗
18. X-ray analysis of ZnO nanoparticles by Williamson–Hall and size-strain plot method10.1016/j.solidstatesciences.2010.11.024 ↗
19. An FTIR study of water thin films on magnesium oxide10.1016/S0039-6028(01)01906-9 ↗
20. Preparation, characterization and catalytic properties of nickel aluminate nanoparticles: a Comparison between conventional and microwave method10.1016/j.jscs.2014.01.006 ↗
21. Cerium containing MCM-41-type mesoporous materials and their acidic and redox catalytic properties10.1006/jcat.2002.3516 ↗
22. Particle size comparison of hydrothermally synthesized cobalt and zinc aluminate spinels10.1111/j.1151-2916.2002.tb00561.x ↗
23. Combustion synthesis, structure, magnetic and optical properties of cobalt aluminate spinel nanocrystals10.1016/j.ceramint.2014.05.003 ↗
24. Synthesis and characterization of nanocrystalline zinc aluminate spinel powder by sol–gel method10.1016/j.ceramint.2013.09.121 ↗
25. Catalytic properties of nanosized zinc aluminates prepared by green process using Opuntia dilenii haw plant extract10.1016/S1872-2067(12)60682-2 ↗
26. Starch—A suitable fuel in new low-temperature combustion-based synthesis of zinc aluminate oxides10.1016/j.poly.2011.08.006 ↗
27. Study of structural and electrical properties of grain-boundary modified ZnO films prepared by sol–gel technique10.1016/S0254-0584(01)00402-3 ↗
28. Rapid and continuous synthesis of cobalt aluminate nanoparticles under subcritical hydrothermal conditions with in-situ surface modification10.1016/j.ces.2012.01.061 ↗
29. Synthesis, structure and optical properties of CoAl2O4 spinel nanocrystals10.1016/j.jallcom.2010.09.199 ↗
30. The effect of annealing temperature on the structure and optical properties of sol–gel derived nanocrystalline cobalt aluminate spinel10.1016/j.matchemphys.2012.05.030 ↗
31. Microemulsion mediated sol–gel synthesis of nano-scaled MAl2O4 (M=Co, Ni, Cu) spinels from single-source hetero bimetallic alkoxide precursors10.1039/a900014c ↗
32. Effect of annealing on structural and optical properties of zinc oxide films10.1016/j.matchemphys.2010.01.053 ↗
33. Microwave combustion synthesis, structural, optical and magnetic properties of Zn1−xCoxAl2O4 (0<x<0.5) spinel nanostructures10.1016/j.jallcom.2013.07.081 ↗
34. Structural, optical and magnetic properties of Zn0.97−xCuxCr0.03S nanoparticles10.1016/j.apsusc.2012.01.123 ↗
35. Structural, optical and magnetic properties of Ni-doped ZnO micro-rods grown by the spray pyrolysis method10.1016/j.cplett.2012.01.003 ↗
36. Influence of Ag doping on structural, optical, and photoluminescence properties of nanostructured AZO films by sol–gel technique10.1016/j.jallcom.2013.09.055 ↗
37. A molecular dynamics simulation study of the viscoelastic properties of polymer nanocomposites10.1063/1.1516589 ↗
38. Synthesis of nickel hexacyanoferrate nanoparticles and their potential as heterogeneous catalysts for the solvent-free oxidation of benzyl alcohol10.1016/S1872-2067(10)60292-6 ↗
39. Characteristics of Au/HMS catalysts for selective oxidation of benzyl alcohol to benzaldehyde10.1016/j.cattod.2010.03.080 ↗
40. Synthesis, characterization of nickel aluminate nanoparticles by microwave combustion method and their catalytic properties10.1016/j.mseb.2014.01.010 ↗
41. Selective oxidation of benzyl alcohol catalyzed by palladium nanoparticles supported on carbon-coated iron nanocrystals10.1016/S1872-2067(10)60273-2 ↗
42. Efficient and selective oxidation of benzylic alcohol by O2 into corresponding aldehydes on a TiO2 photocatalyst under visible light irradiation: effect of phenyl-ring substitution on the photocatalytic activity10.1016/j.jcat.2010.06.006 ↗
43. Kinetics of halogenated organic compound degradation by iron metal10.1021/es9600901 ↗
44. Comparative study of nano copper aluminate spinel prepared by sol–gel and modified sol–gel techniques: structural, electrical, optical and catalytic studies10.1016/j.jallcom.2012.01.064 ↗
45. Modified sol–gel prepared Sr(II)-added nickel aluminate nanocatalysts for the selective oxidation of benzyl alcohol10.1166/jnn.2013.7450 ↗
46. Mixed metal nanoparticles loaded catalytic polymer membrane for solvent free selective oxidation of benzyl alcohol to benzaldehyde in a reactor10.1016/j.apcatb.2012.11.001 ↗
47. Spinel-type zinc aluminate (ZnAl2O4) nanoparticles prepared by the co-precipitation method: a novel, green and recyclable heterogeneous catalyst for the acetylation of amines, alcohols and phenols under solvent-free conditions10.1016/j.apcata.2010.05.005 ↗
48. Effects of β-alanine on morphology and optical properties of CoAl2O4 nanopowders as a blue pigment10.1016/j.apt.2013.11.003 ↗
49. Preparation of CoAl2O4 nano blue pigment via polyacrylamide gel method10.1016/j.powtec.2014.06.018 ↗
50. Production of a stable and homogeneous colloid dispersion of nano CoAl2O4 pigment for ceramic ink-jet ink10.1016/j.jeurceramsoc.2014.03.022 ↗
51. Blue CoAl2O4 spinel via complexation method10.1016/j.matchemphys.2010.03.032 ↗
52. A simple route to synthesis and characterization of CoAl2O4 nanocrystalline via combustion method using egg white (ovalbumine) as a new fuel10.1016/j.materresbull.2011.08.005 ↗
53. Size effect on the magnetic property of CoAl2O4 nanopowders prepared by reverse miscelle processing10.1016/j.jallcom.2010.07.014 ↗
54. Effect of calcination temperature on colorant behavior of cobalt-aluminate nano-particles synthesized by combustion technique10.1016/j.jiec.2013.06.011 ↗