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dc.contributor.author |
Troppová, Ivana
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dc.contributor.author |
Hudcová, Barbora
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dc.contributor.author |
Smoláková, Lucie
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dc.contributor.author |
Čapek, Libor
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dc.date.accessioned |
2020-05-15T12:00:11Z |
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dc.date.available |
2020-05-15T12:00:11Z |
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dc.date.issued |
2015 |
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dc.identifier.isbn |
978-80-7395-898-5 |
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dc.identifier.issn |
1211-5541 |
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dc.identifier.uri |
https://hdl.handle.net/10195/75404 |
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dc.description.abstract |
The aim of this work is to compare the structure and basicity of Mg-Al mixed
oxides with the same Mg/Al molar ratio (Mg/Al 2) synthesised by means of
different procedures. We have focused on the preparation of Mg-Al mixed oxides
by the thermal pre-treatment of hydrotalcites synthesized by co-precipitation
method. The individual methods differed from the application of alkaline solution
used to control the reaction pH. We used two solutions, 0.5 M Na2CO3 + 3 M
NaOH and 2 M NaOH, respectively. Moreover, MgO and two Mg-Al mixed oxides
available to large-scale were used to compare the structure and basicity with
those of materials synthesized in laboratory. The structure and basicity of Mg-Al
mixed oxides were analysed by using XRD, N2-adsorption, TGA, and TPD-CO2.
As found, the Mg-Al mixed oxide prepared by the thermal pre-treatment of
hydrotalcite material and synthesised in the concentrated NaOH solution has
exhibited a lower total concentration of basic sites as well as lower relative
amount of medium/strong basic sites, in comparison with the Mg-Al mixed oxides
originating from the hydrotalcites in the carbonate form. |
en |
dc.format |
p. 83–95 |
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dc.language.iso |
en |
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dc.publisher |
University of Pardubice |
en |
dc.relation.ispartof |
Scientific papers of the University of Pardubice. Series A, Faculty of Chemical Technology. 21/2015 |
en |
dc.rights |
open access |
en |
dc.title |
Synthesis of Mg-Al mixed oxides with different distribution of basic sites |
en |
dc.type |
Article |
en |
dc.peerreviewed |
yes |
en |
dc.publicationstatus |
published |
en |
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