Co-improvement of –COOH group and –SO3H group densities in carbon-based solid acid by a simple strategy

[Display omitted] •High-performance carbon catalyst was prepared by co-carbonization of borax and cellulose.•Densities of –COOH group and –SO3H group simultaneously increases.•Higher aromaticity and –COOH group enhance the adsorption between cellulose and catalyst. High-performance carbon-based soli...

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Bibliographic Details
Published in:Molecular catalysis 2021-04, Vol.506, p.111539, Article 111539
Main Authors: Wu, Bin, Shen, Shuguang, Yuan, Shujuan, Pan, Huajie, Wang, Cui, Jing, Shuaiqi, Li, Jing, Zhao, Yansheng
Format: Article
Language:English
Subjects:
Carbon-based solid acid
Co-carbonization
COOH group
Mixing ratio
SO3H group
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Summary:[Display omitted] •High-performance carbon catalyst was prepared by co-carbonization of borax and cellulose.•Densities of –COOH group and –SO3H group simultaneously increases.•Higher aromaticity and –COOH group enhance the adsorption between cellulose and catalyst. High-performance carbon-based solid acid was prepared by a simple method. The effects of carbonization temperature and mixing ratio on the structure and performance of carbon catalysts were explored. The participation of borax increases both –COOH group and –SO3H group densities. In addition, graphitization and specific surface area of the catalyst increase by this co-carbonization method. Higher –COOH group density and aromaticity facilitate the adsorption between catalyst and substrate molecule through hydrogen bonding and CH-π interaction respectively. These improvements of structural significantly increase the hydrolysis activity of the catalyst.
ISSN:2468-8231
2468-8231
DOI:10.1016/j.mcat.2021.111539