Pyrolysis Degradation of Cellulose over Highly Effective ZnO and ZnO-CuO Nanocatalysts
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43922355" target="_blank" >RIV/60461373:22310/21:43922355 - isvavai.cz</a>
Result on the web
<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/slct.202100367" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/slct.202100367</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/slct.202100367" target="_blank" >10.1002/slct.202100367</a>
Alternative languages
Result language
angličtina
Original language name
Pyrolysis Degradation of Cellulose over Highly Effective ZnO and ZnO-CuO Nanocatalysts
Original language description
Pyrolysis of lignocellulosic biomass with the use of appropriative catalysts can lead to the production of high yields of fuels - bio-oils. Here, zinc oxide - copper oxide (ZnO-CuO) nanocatalysts were synthesized by solvothermal synthesis. High-angle annular dark-field imaging scanning transmission electron microscopy (HAADF-STEM), high-resolution transmission electron microscopy (HRTEM), and energy-dispersive X-ray spectroscopy (EDXS) results suggested that ZnO-CuO nanoparticles (D=23 +/- 5 nm) exhibit porous nanostructure. The pyrolytic degradation of cellulose using pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS) unit has been studied over ZnO and ZnO-CuO nanocatalysts at the temperature range 400-800 degrees C. The activation energy of ZnO-CuO (67.21 and 70.04 kJ/mol) was lower by 30 kJ/mol from the activation energy of clean ZnO and the calculated rate constants showed that the cellulose pyrolytic reaction is faster using ZnO-CuO catalyst. Nanoporous ZnO-CuO shifted the products maximum towards lower temperatures (<500 degrees C), reduced the content of aldehydes at 400-500 degrees C and enhanced the overall product composition and bio-oil yield. Porous structure of ZnO nanocatalysts had a significant effect on the product selectivity and reaction mechanism of cellulose pyrolysis.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10401 - Organic chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ChemistrySelect
ISSN
2365-6549
e-ISSN
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Volume of the periodical
6
Issue of the periodical within the volume
17
Country of publishing house
DE - GERMANY
Number of pages
9
Pages from-to
4256-4264
UT code for WoS article
000656879800028
EID of the result in the Scopus database
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