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Structure and activity of activated carbon functionalized with maleic anhydride by diels-alder reaction

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Title: Structure and activity of activated carbon functionalized with maleic anhydride by diels-alder reaction
Authors: Mahardiani, Lina Browse this author
Shrotri, Abhijit Browse this author
Kobayashi, Hirokazu Browse this author →KAKEN DB
Fukuoka, Atsushi Browse this author →KAKEN DB
Keywords: Activated carbon
Diels-alder reaction
Acid catalyst
Hydrolysis of cellobiose
Issue Date: 1-Nov-2020
Publisher: Elsevier
Journal Title: Catalysis today
Volume: 357
Start Page: 409
End Page: 415
Publisher DOI: 10.1016/j.cattod.2019.08.056
Abstract: Diels-Alder reaction is a useful method for modifying the surface of carbon materials. In this work, we functionalized activated carbon with a large number of carboxyl groups using the Diels-Alder reaction. Polyaromatic structure of activated carbon acted as a diene for addition of maleic anhydride (MA) that acted as a dienophile. Upon hydrolysis of the anhydride group in the adduct, vicinal carboxyl groups were formed. The formation of carboxyl groups by Diels-Alder reaction was proved by FTIR, solid-state C-13 NMR, CO and CO2 evolution from TPD and Boehm titration. Titration results showed that the number of carboxyl groups increased from 0.09 mmol g(-1) to 3.06 mmol g(-1). DFT calculation showed that the concave site of the armchair edge on carbon surface was the most favorable for the Diels-Alder addition. The formation of exo-adduct was preferred with a reaction energy (Delta E) of -24 kJ mol(-1). The synthesized catalyst was tested for acid-catalyzed hydrolysis of cellobiose. The catalyst showed higher activity than a catalyst prepared by oxidation in the presence of air.
Rights: © 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:触媒科学研究所 (Institute for Catalysis) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 福岡 淳

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