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.
Highlights
Catalysis, which is largely a surface phenomenon, is an area of research that has been a widely studied subject by scientists and technologists [1,2,3,4]
To exploit the excellent catalytic activity of vanadium oxide, we report the synthesis of heterogeneous catalysts based on vanadium oxide nanoparticles supported on nickel manganese oxide mixed metal oxides (MMO)
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
Summary
Catalysis, which is largely a surface phenomenon, is an area of research that has been a widely studied subject by scientists and technologists [1,2,3,4]. The zeal for finding a better performing catalyst for various processes including CO oxidation [5], Fischer-Tropsch synthesis [6], MOFs for biomimetic catalysis [7], fuel cell reactions [8], and selective hydrogenolysis of aryl ethers [9] still is an ongoing process. Among several elements that are being tested and tried for catalysis, vanadium oxide and other compounds containing vanadium have attracted significant attention as catalyst for many oxidation reactions [10,11,12,13,14]. Mixed metal oxides (MMO) have attracted significant attention as solid catalysts, due to their low cost, easy regeneration, selective action, and excellent acid–base redox properties [31]. Examples include the catalytic reaction of hydrogen production via autothermal reforming of ethanol [33], steam reforming of tar from biomass pyrolysis [34], methane combustion at low temperature
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