Hydrotalcite-derived Co-containing mixed metal oxide catalysts for methanol incineration Role of cobalt content, Mg/Al ratio and calcination temperature
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43914640" target="_blank" >RIV/60461373:22310/17:43914640 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/s10973-017-6348-7" target="_blank" >http://dx.doi.org/10.1007/s10973-017-6348-7</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10973-017-6348-7" target="_blank" >10.1007/s10973-017-6348-7</a>
Alternative languages
Result language
angličtina
Original language name
Hydrotalcite-derived Co-containing mixed metal oxide catalysts for methanol incineration Role of cobalt content, Mg/Al ratio and calcination temperature
Original language description
The Co-Mg-Al mixed metal oxides were prepared by calcination of co-precipitated hydrotalcite-like precursors at various temperatures (600-800 A degrees C), characterised with respect to chemical (AAS) and phase (XRD) composition, textural parameters (BET), form and aggregation of cobalt species (UV-vis-DRS) and their redox properties (H-2-TPR, cyclic voltammetry). Moreover, the process of thermal decomposition of hydrotalcite-like materials to mixed metal oxide systems was studied by thermogravimetric method combined with the analysis of gaseous decomposition products by mass spectrometry. Calcined hydrotalcite-like materials were tested as catalysts for methanol incineration. Catalytic performance of the oxides depended on cobalt content, Mg/Al ratio and calcination temperature. The catalysts with lower cobalt content, higher Mg/Al ratio and calcined at lower temperatures (600 or 700 A degrees C) were less effective in the process of methanol incineration. In a series of the studied catalysts, the best results, with respect to high catalytic activity and selectivity to CO2, were obtained for the mixed oxide with Co:Mg:Al molar ratio of 10:57:33 calcined at 800 A degrees C. High activity of this catalyst was likely connected with the presence of a Co-Mg-Al spinel-type phases, containing easy reducible Co3+ cations, formed during high-temperature treatment of the hydrotalcite-like precursor.
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
10403 - Physical chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Thermal Analysis and Calorimetry
ISSN
1388-6150
e-ISSN
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Volume of the periodical
129
Issue of the periodical within the volume
3
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
1301-1311
UT code for WoS article
000407309900003
EID of the result in the Scopus database
2-s2.0-85016963523