Synergetic effect of Fe decorated Mn2O3 support in application of aerobic benzyl alcohol oxidation reaction
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Developing active lower Mn−based metal oxides through the addition of non−noble metal oxides like Fe 2 O 3 as a promoter is the most cost−effective technique for generating active heterogeneous catalysts for diverse oxidation processes. In this paper, we provide Fe 2 O 3 −Mn 2 O 3 mixed oxides for the aerobic oxidation of benzyl alcohol (BA) into benzaldehyde (BZA) in the absence of a solvent, using molecular O 2 . The insertion of Fe 2 O 3 on Mn 2 O 3 support improves the reducibility of Mn and surface adsorbed oxygen (O ads ) by forming crystal defects on the Mn 2 O 3 surface via Mn and Fe atom exchanges. Fe 2 O 3 significantly increases the Mn 2 O 3 catalytic activity of the BA catalytic oxidation process. The conversion rate of benzyl alcohol ( X BA ) is 3.2 times that of bare Mn 2 O 3 . The structural development of bare Mn 2 O 3 and its varied Fe 2 O 3 −loaded catalysts has been thoroughly studied using spectroscopic techniques such as XPS, P−XRD, BET, and SEM examination. Furthermore, the effect of reaction parameters such as temperature, different wt.% of Fe 2 O 3 loading, catalyst quantity, and O 2 flow rates on the BA oxidation reaction has been carefully examined.
