Titania supported Co–Mn–Al oxide catalysts in total oxidation of ethanol

Ludvíková, Jana; Jirátová, Květa; Klempa, Jan; Boehmová, Vlasta; Obalová, Lucie

doi:10.1016/j.cattod.2011.06.032

Cited by 10 publications

(4 citation statements)

References 13 publications

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“…Recently, it was proposed that the Lewis acidity of the metal center is a key factor influencing the performance of some types of catalysts in ethanol oxidation [41]. On the other hand, the acid sites usually decrease the selectivity to CO 2 due to the formation of by-products (mainly acetaldehyde) and a decreased acidity thus may lead to improved selectivity [42]. In our case, all studied catalysts exhibit the same strength of acid sites.…”

Section: Discussionmentioning

confidence: 90%

Total oxidation of ethanol over Au/Ce0.5Zr0.5O2 cordierite monolithic catalysts

Topka

Klementová

2016

Applied Catalysis A: General

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Section: Discussionmentioning

confidence: 90%

Total oxidation of ethanol over Au/Ce0.5Zr0.5O2 cordierite monolithic catalysts

Topka

Klementová

2016

Applied Catalysis A: General

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“…The selective oxidation of alcohols to aldehydes and ketones is a significant transformation in organic chemistry with recognized industrial importance. A wide range of catalyst types was reported including a graphene supported oxo-vanadium Schiff base, 396 titania supported cobalt-manganese-aluminium oxide, 397 SWCNT supported gold nanoparticles 398 and various palladium materials. 399,400 However, it is difficult to find literature with an analytical focus.…”

Section: Catalystsmentioning

confidence: 99%

Atomic spectrometry update. Industrial analysis: metals, chemicals and advanced materials

Carter

Fisher

Hinds

et al. 2012

J. Anal. At. Spectrom.

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“…Amongst various oxides employed for VOC abatement, systems including manganese (Mn) and/or cobalt (Co) oxides have exhibited exceptional activity for the total destruction of a wide range of organic molecules, including aromatics, alkanes, and alcohols into CO 2 and H 2 O. Manganese and cobalt presence in the same oxide offers a high oxygen storage/release capacity due to their multivalent oxidation states [12]. The catalysts may easily undergo fast reduction-oxidation cycles, making them suitable for VOC oxidation [13][14][15]. For instance, Dissanayake et al [16] investigated the impact of the calcination temperature of cobalt oxides on the oxidation of 2-propanol, a representative hazardous alcohol molecule.…”

Section: Introductionmentioning

confidence: 99%

Total Catalytic Oxidation of Ethanol over MnCoAl Mixed Oxides Derived from Layered Double Hydroxides: Effect of the Metal Ratio and the Synthesis Atmosphere Conditions

Tannous,

Bounoukta,

Siffert

et al. 2023

Catalysts

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In this work, the LDH approach was used to prepare MnCoAl mixed oxides with various textural and structural frameworks for the purpose of enhancing the total oxidation of ethanol. Our results showed that the catalytic activity of the MnCoAl oxides was influenced by the Mn/Co ratio and the gas atmosphere used during synthesis and thermal treatment. Rietveld refinement was processed to estimate the proportion of phases presented in the prepared materials. Our findings indicated that the generation of Mn2CoO4 spinel and Mn5O8 lamellar phases improved the redox properties and enhanced the active sites in the MnCoAl oxides. Notably, we observed that the catalytic activity at low temperatures of the catalyst increased with the decrease in the cobalt amount. It was also demonstrated that using an N2 atmosphere during the preparation of the materials is a promising route to prevent the formation of undesirable phases in the LDHs and their corresponding oxides. The presence of an O2-free atmosphere during the LDH synthesis positively affects the total ethanol transformation to CO2 over the oxide catalysts.

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Titania supported Co–Mn–Al oxide catalysts in total oxidation of ethanol

Cited by 10 publications

References 13 publications

Total oxidation of ethanol over Au/Ce0.5Zr0.5O2 cordierite monolithic catalysts

Total oxidation of ethanol over Au/Ce0.5Zr0.5O2 cordierite monolithic catalysts

Atomic spectrometry update. Industrial analysis: metals, chemicals and advanced materials

Total Catalytic Oxidation of Ethanol over MnCoAl Mixed Oxides Derived from Layered Double Hydroxides: Effect of the Metal Ratio and the Synthesis Atmosphere Conditions

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