Synthesis, characterization and catalytic activity of cryptomelane/montmorillonite composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68145535%3A_____%2F21%3A00543216" target="_blank" >RIV/68145535:_____/21:00543216 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0169131721000016?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169131721000016?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.clay.2021.105977" target="_blank" >10.1016/j.clay.2021.105977</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis, characterization and catalytic activity of cryptomelane/montmorillonite composites

Popis výsledku v původním jazyce

Manganese oxides are considered to be highly effective catalysts for the oxidation of volatile organic compounds (VOCs). A series of MnO2 /montmorillonite composites was prepared to test their catalytic activity in the combustion of model compounds - toluene and ethanol. Several different types of montmorillonites (Mt), referred to as STx-1b, SWy-2, SAz-2, and Kunipia- F, were used to prepare the composites. The MnO2/Mt composites were synthetized in a weight ratio of 1:1, using the reaction between KMnO4 and HCl for the generation of the MnO2 component. Advanced techniques including XRD, SEM/EDS, IR spectroscopy, N2 adsorption /desorption, and H2 TPR were used for physico-chemical characterization of obtained materials. The MnO2 component precipitated as cryptomelane, the tunnel α-MnO2 structure. In catalytic tests, all composite samples were more active than the reference MnO2.

Název v anglickém jazyce

Synthesis, characterization and catalytic activity of cryptomelane/montmorillonite composites

Popis výsledku anglicky

Manganese oxides are considered to be highly effective catalysts for the oxidation of volatile organic compounds (VOCs). A series of MnO2 /montmorillonite composites was prepared to test their catalytic activity in the combustion of model compounds - toluene and ethanol. Several different types of montmorillonites (Mt), referred to as STx-1b, SWy-2, SAz-2, and Kunipia- F, were used to prepare the composites. The MnO2/Mt composites were synthetized in a weight ratio of 1:1, using the reaction between KMnO4 and HCl for the generation of the MnO2 component. Advanced techniques including XRD, SEM/EDS, IR spectroscopy, N2 adsorption /desorption, and H2 TPR were used for physico-chemical characterization of obtained materials. The MnO2 component precipitated as cryptomelane, the tunnel α-MnO2 structure. In catalytic tests, all composite samples were more active than the reference MnO2.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Applied Clay Science

ISSN

0169-1317

e-ISSN

1872-9053

Svazek periodika

202

Číslo periodika v rámci svazku

March 2021

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

105977

Kód UT WoS článku

000624973300006

EID výsledku v databázi Scopus

2-s2.0-85099338132