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Vanadia supported on nickel manganese oxide nanocatalysts for the catalytic oxidation of aromatic alcohols.

Adil SF, Alabbad S, Kuniyil M, Khan M, Alwarthan A, Mohri N, Tremel W, Tahir MN, Siddiqui MR - Nanoscale Res Lett (2015)

Bottom Line: It was observed that the calcination temperature and the size of particles play an important role in the catalytic process.The catalyst was evaluated for its oxidation property against aliphatic and aromatic alcohols, which was found to display selectivity towards aromatic alcohols.The samples were characterized by employing scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller analysis, thermogravimetric analysis, and X-ray photoelectron spectroscopy.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, College of Science, King Saud University, P.O. 2455, Riyadh, 11451 Kingdom of Saudi Arabia.

ABSTRACT
Vanadia nanoparticles supported on nickel manganese mixed oxides were synthesized by co-precipitation method. The catalytic properties of these materials were investigated for the oxidation of benzyl alcohol using molecular oxygen as oxidant. It was observed that the calcination temperature and the size of particles play an important role in the catalytic process. The catalyst was evaluated for its oxidation property against aliphatic and aromatic alcohols, which was found to display selectivity towards aromatic alcohols. The samples were characterized by employing scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller analysis, thermogravimetric analysis, and X-ray photoelectron spectroscopy.

No MeSH data available.


SEM of the catalyst (a) V2O5(1%)-NiMnO, (b) V2O5(3%)-NiMnO, and (c) V2O5(5%)-NiMnO at 300°C.
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Fig1: SEM of the catalyst (a) V2O5(1%)-NiMnO, (b) V2O5(3%)-NiMnO, and (c) V2O5(5%)-NiMnO at 300°C.

Mentions: The morphology and the particle size of the synthesized catalyst were characterized using SEM and TEM. The SEM micrographs of the pre-calcined (300°C) catalyst V2O5 (X%)-NiMnO, where X = (1, 3, and 5), are shown in Figure 1. It was observed that the morphology of the synthesized catalysts is not well defined, and the surface appears to be rugged without any obvious phase separation. The stoichiometric amount of elements was confirmed from the EDX analysis and found to be approximately in agreement with the calculated value.Figure 1


Vanadia supported on nickel manganese oxide nanocatalysts for the catalytic oxidation of aromatic alcohols.

Adil SF, Alabbad S, Kuniyil M, Khan M, Alwarthan A, Mohri N, Tremel W, Tahir MN, Siddiqui MR - Nanoscale Res Lett (2015)

SEM of the catalyst (a) V2O5(1%)-NiMnO, (b) V2O5(3%)-NiMnO, and (c) V2O5(5%)-NiMnO at 300°C.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4385214&req=5

Fig1: SEM of the catalyst (a) V2O5(1%)-NiMnO, (b) V2O5(3%)-NiMnO, and (c) V2O5(5%)-NiMnO at 300°C.
Mentions: The morphology and the particle size of the synthesized catalyst were characterized using SEM and TEM. The SEM micrographs of the pre-calcined (300°C) catalyst V2O5 (X%)-NiMnO, where X = (1, 3, and 5), are shown in Figure 1. It was observed that the morphology of the synthesized catalysts is not well defined, and the surface appears to be rugged without any obvious phase separation. The stoichiometric amount of elements was confirmed from the EDX analysis and found to be approximately in agreement with the calculated value.Figure 1

Bottom Line: It was observed that the calcination temperature and the size of particles play an important role in the catalytic process.The catalyst was evaluated for its oxidation property against aliphatic and aromatic alcohols, which was found to display selectivity towards aromatic alcohols.The samples were characterized by employing scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller analysis, thermogravimetric analysis, and X-ray photoelectron spectroscopy.

View Article: PubMed Central - PubMed

Affiliation: Department of Chemistry, College of Science, King Saud University, P.O. 2455, Riyadh, 11451 Kingdom of Saudi Arabia.

ABSTRACT
Vanadia nanoparticles supported on nickel manganese mixed oxides were synthesized by co-precipitation method. The catalytic properties of these materials were investigated for the oxidation of benzyl alcohol using molecular oxygen as oxidant. It was observed that the calcination temperature and the size of particles play an important role in the catalytic process. The catalyst was evaluated for its oxidation property against aliphatic and aromatic alcohols, which was found to display selectivity towards aromatic alcohols. The samples were characterized by employing scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Brunauer-Emmett-Teller analysis, thermogravimetric analysis, and X-ray photoelectron spectroscopy.

No MeSH data available.