A combination of plasma jet and magnetron sputtering - a new method for preparing thin Ni-Co-Mn oxide coatings on stainless steel meshes and their efficiency in the total oxidation of volatile organic compounds
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F24%3A00600614" target="_blank" >RIV/67985858:_____/24:00600614 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/24:00600614
Result on the web
<a href="https://pubs.acs.org/doi/epdf/10.1021/acs.iecr.4c02299?ref=article_openPDF" target="_blank" >https://pubs.acs.org/doi/epdf/10.1021/acs.iecr.4c02299?ref=article_openPDF</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.iecr.4c02299" target="_blank" >10.1021/acs.iecr.4c02299</a>
Alternative languages
Result language
angličtina
Original language name
A combination of plasma jet and magnetron sputtering - a new method for preparing thin Ni-Co-Mn oxide coatings on stainless steel meshes and their efficiency in the total oxidation of volatile organic compounds
Original language description
For the first time, ternary Ni-Co-Mn oxide catalysts were prepared by a combination of sputtering techniques. Thin coatings of Ni-Co-Mn oxides were deposited on stainless steel meshes using a new method that involved a combination of plasma jet sputtering from a hollow Ni-Co cathode and simultaneous magnetron sputtering of manganese. The resulting thin-film catalysts are suitable for various oxidation reactions, such as total oxidation of volatile organic compounds. The catalysts with a Ni:Co molar ratio of 1:1 and varying amounts of Mn were compared with the binary Ni-Co oxide catalyst in terms of their ability to oxidize ethanol and toluene. The powder XRD showed spinel-type mixed oxides and NiO-like ones in the oxide coatings. The TPR profiles revealed easier reducibility of the Ni-Co-Mn oxides compared to the Ni-Co oxide and the synergistic effect of Mn addition. The Ni-Co-Mn oxide catalysts exhibited higher catalytic activity than the binary catalysts due to mixed oxide phases with disordered structure and the presence of Mn4+. The catalysts showing the highest activity in the oxidation of ethanol and toluene were prepared at low plasma jet energy input and high magnetron sputtering energy input. The thin-film catalysts prepared by this method have a primary advantage over pelletized catalysts due to their extremely low contents of active Ni, Co, and Mn oxides in the catalyst bed and negligible internal diffusion effects. The proposed novel method of plasma sputtering of Ni and Co components from a hollow cathode, combined with simultaneous magnetron sputtering of Mn, has the potential for industrial application. It allows the preparation of ternary catalysts that are more active than the previously reported binary catalysts. Moreover, the preparation procedure can be applied to other transition metal oxides, not just Ni-Co-Mn.
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
20402 - Chemical process engineering
Result continuities
Project
<a href="/en/project/GA21-04477S" target="_blank" >GA21-04477S: Innovative plasma-chemical and chemical synthesis of nickel-containing mixed oxide catalysts for the oxidation of volatile organic pollutants</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Industrial and Engineering Chemistry Research
ISSN
0888-5885
e-ISSN
1520-5045
Volume of the periodical
63
Issue of the periodical within the volume
44
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
18759-18772
UT code for WoS article
001340150900001
EID of the result in the Scopus database
2-s2.0-85207301892