The Role of Surface Complexes in Ketene Formation from Fatty Acids via Pyrolysis over Silica: from Platform Molecules to Waste Biomass

Azizova, Liana R.; Kulik, Tetiana V.; Palianytsia, Borys B.; Ilchenko, Mykola M.; Telbiz, German M.; Balu, Alina M.; Tarnavskiy, Sergiy; Luque, Rafael; Roldan, Alberto; Kartel, Mykola T.

doi:10.1021/jacs.3c06966

J. Am. Chem. Soc.

2023

DOI: 10.1021/jacs.3c06966

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The Role of Surface Complexes in Ketene Formation from Fatty Acids via Pyrolysis over Silica: from Platform Molecules to Waste Biomass

Liana R. Azizova,

Tetiana V. Kulik,

Borys B. Palianytsia

et al.

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2024

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Cited by 3 publications

References 110 publications

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An efficient and mild fractionation of corn stover via 2-phenoxyethanol and silicotungstic acid biphasic pretreatment for biomass valorization

Jiang,

Yu,

Shu

et al. 2024

Chemical Engineering Journal

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An efficient and mild fractionation of corn stover via 2-phenoxyethanol and silicotungstic acid biphasic pretreatment for biomass valorization

Jiang,

Yu,

Shu

et al. 2024

Chemical Engineering Journal

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A minireview to ketene chemistry in zeolite catalysis

Chen,

Cnudde

2024

Chinese Journal of Structural Chemistry

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Caffeic acid complexes over alumina surface: FTIR, TPD MS and DFT calculations

Nastasiienko,

Kulik,

Ilchenko

et al. 2024

Him. Fiz. Tehnol. Poverhni

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Caffeic acid (CA) is a phenolic, natural, biologically active compound with pronounced antioxidant and antimicrobial properties. It has a great potential for use in medicine and cosmetology and can also be used to obtain a number of other useful chemicals. Therefore, research aimed at improving the technologies for removing caffeic acid from plant raw materials and its processing is relevant. In our work, we have studied the complexes of caffeic acid with nanosized Al2O3, which is usually used in various plant biomass conversion technologies, using FT-IR spectroscopy, temperature-programmed desorption mass spectrometry (TPD MS), and DFT calculations. The FT-IR spectra analysis shows that CA can interact with aluminum oxide via both the carboxyl and phenolic groups. Based on the measured differences between carbonyl symmetric and asymmetrc vibrational peaks (Δν), it was found that carboxylate complexes of CA on the Al2O3 surface can have bidentate and monodentate structures. The mass spectrometric data analysis made it possible to identify compounds of 4-vinyl catechol, pyrocatechol, and phenol, which are decomposition products of the formed carboxylate and phenolic complexes. It was found that on the surface of the studied CA/Al2O3 samples, CA chelate complexes, formed with the participation of both OH groups of the aromatic ring, predominate.

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The Role of Surface Complexes in Ketene Formation from Fatty Acids via Pyrolysis over Silica: from Platform Molecules to Waste Biomass

Cited by 3 publications

References 110 publications

An efficient and mild fractionation of corn stover via 2-phenoxyethanol and silicotungstic acid biphasic pretreatment for biomass valorization

An efficient and mild fractionation of corn stover via 2-phenoxyethanol and silicotungstic acid biphasic pretreatment for biomass valorization

A minireview to ketene chemistry in zeolite catalysis

Caffeic acid complexes over alumina surface: FTIR, TPD MS and DFT calculations

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