Biowaste carbon supported manganese nanoparticles as an active catalyst for the selective hydrogenation of bio-based aldehydes

Sarki, Naina and Narani, Anand and Naik, Ganesh and Natte, Kishore and et al, . (2023) Biowaste carbon supported manganese nanoparticles as an active catalyst for the selective hydrogenation of bio-based aldehydes. Catalysis Today, 408. pp. 127-138. ISSN 0920-5861

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Hydrogenation of aldehydes with heterogeneous manganese catalysts is an appealing approach for producing alcohols. In this paper, we report a novel and robust MnO/PN-800 catalyst for the hydrogenation of versatile biomass-derived platform molecules in the presence of molecular hydrogen as a reductant. The effect of catalyst concentration, the operating hydrogen pressure, and the reaction temperature on the catalyst activity was investigated in detail. Under the mild reaction conditions, the full conversion of furfuraldehyde, 5-Methyl-2-furaldehyde, and 5-hydroxymethyl-2-furaldehyde (5-HMF) to their corresponding alcohols was achieved without any by-product formation. Additionally, other aromatic aldehydes bearing fluoro, chloro, and nitro moieties were also tolerated. The fresh and spent MnO/PN-800 catalyst was thoroughly characterized using XPS, powder-XRD, HR-TEM, N2 adsorption-desorption, and Raman spectroscopy. Noteworthy, the MnO/PN-800 catalyst can be recovered by centrifugation and then reused directly in the subsequent hydrogenation reactions. Importantly the synthetic utility of this protocol up to ∼5 g-scale is realized. Finally, our novel MnO/PN-800 nanocatalyst was successfully employed for the direct synthesis of furfuryl alcohol in high yields from raw sugarcane bagasse. We believe that these findings will help to advance the manganese-catalyzed hydrogenation reactions. © 2022 Elsevier B.V.

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IITH Creators:
IITH CreatorsORCiD
Natte, Kishore
Item Type: Article
Additional Information: K.N. acknowledges DST-SERB, New Delhi (SRG/20l9/002004) for financial support. N.S. is thankful to Council of Scientific and Industrial Research (CSIR) New Delhi for awarding the fellowship. The authors are thankful to the analytical staff of CSIR-IIP, Dehradun for their excellent support.
Uncontrolled Keywords: 5-HMF; 5-Methyl-2-furfuraldehyde; Alcohols; Furfuraldehyde; Hydrogenation; MnO/PN-800 catalyst; Pine needle biomass
Subjects: Chemistry
Chemistry > Inorganic chemistry
Divisions: Department of Chemistry
Depositing User: . LibTrainee 2021
Date Deposited: 23 Nov 2022 11:48
Last Modified: 23 Nov 2022 11:48
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