Aerobic Oxidation of Syringyl Alcohol over N-Doped Carbon Nanotubes Full article
| Journal |
Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875 |
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| Output data | Year: 2022, Volume: 629, Article number : 118424, Pages count : 9 DOI: 10.1016/j.apcata.2021.118424 | ||
| Tags | N-doped carbon nanotubes, syringyl alcohol, syringaldehyde, aerobic oxidation | ||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Russian Foundation for Basic Research | 19-03-00172 |
| 2 | Ministry of Science and Higher Education of the Russian Federation | 0239-2021-0009 |
Abstract:
Carbon nanotubes (CNTs) doped with nitrogen were prepared using two methodologies, chemical vapor deposition (N-CNTs) and post-modification (N-CNTs-P), and characterized by N2 adsorption, TEM, XPS, Raman spectroscopy, and water capacity measurements. Their catalytic performance was assessed for aerobic oxidation of syringyl alcohol, a model of syringyl unit of lignin. With N-CNTs, the reaction readily proceeds under mild conditions (40–80 °C, 1 atm of air, isopropanol, ethanol, or water as solvents), leading to syringaldehyde with 95–97% yield. A correlation between N content in N-CNTs and oxidation rate has been established. Spectroscopic studies coupled with water capacity measurements implicated that a blend of graphitic and pyridinic nitrogen species is crucial for catalytic activity. The catalysts can be easily recovered, regenerated, and reused without significant loss of the catalytic performance. N-CNTs-P catalysts, which endow high content of quinone-type oxygen groups, provide significantly lower syringaldehyde yield due to fast deactivation.
Cite:
Zalomaeva O.V.
, Podyacheva O.Y.
, Suboch A.N.
, Kibis L.S.
, Kholdeeva O.A.
Aerobic Oxidation of Syringyl Alcohol over N-Doped Carbon Nanotubes
Applied Catalysis A: General. 2022. V.629. 118424 :1-9. DOI: 10.1016/j.apcata.2021.118424 WOS Scopus РИНЦ AN OpenAlex
Aerobic Oxidation of Syringyl Alcohol over N-Doped Carbon Nanotubes
Applied Catalysis A: General. 2022. V.629. 118424 :1-9. DOI: 10.1016/j.apcata.2021.118424 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Aug 23, 2021 |
| Accepted: | Oct 31, 2021 |
| Published online: | Nov 3, 2021 |
| Published print: | Jan 5, 2022 |
Identifiers:
| Web of science: | WOS:000724337100005 |
| Scopus: | 2-s2.0-85119049050 |
| Elibrary: | 47525434 |
| Chemical Abstracts: | 2021:2512588 |
| OpenAlex: | W3209975135 |