Novel Nanosized Spinel MnCoFeO4 for Low-Temperature Hydrocarbon Oxidation

Tumbalev, Vencislav; Kovacheva, Daniela; Spassova, Ivanka; Velinova, Ralitsa; Tyuliev, Georgi; Velinov, Nikolay; Naydenov, Anton

doi:10.3390/nano12213900

Open AccessArticle

Novel Nanosized Spinel MnCoFeO₄ for Low-Temperature Hydrocarbon Oxidation

by

Vencislav Tumbalev

¹,

Daniela Kovacheva

^1,*

,

Ivanka Spassova

^1,*

,

Ralitsa Velinova

¹

,

Georgi Tyuliev

²,

Nikolay Velinov

²

and

Anton Naydenov

¹

Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

²

Institute of Catalysis, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria

^*

Authors to whom correspondence should be addressed.

Nanomaterials 2022, 12(21), 3900; https://doi.org/10.3390/nano12213900

Submission received: 19 October 2022 / Revised: 31 October 2022 / Accepted: 4 November 2022 / Published: 4 November 2022

(This article belongs to the Section Energy and Catalysis)

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Abstract

The present paper reports on MnCoFeO₄ spinels with peculiar composition and their catalytic behavior in the reactions of complete oxidation of hydrocarbons. The samples were synthesized by solution combustion method with sucrose and citric acid as fuels. All samples were characterized by powder X-ray diffraction, N₂-physisorption, scanning electron microscopy, thermal analysis, X-ray photoelectron spectroscopy, and Mössbauer spectroscopy. The catalytic properties of the spinels with Mn:Co:Fe = 1:1:1 composition were studied in reactions of complete oxidation of methane, propane, butane, and propane in the presence of water as model pollutants. Both prepared catalysts are nanosized materials. The slight difference in the compositions, structure, and morphology is due to the type of fuel used in the synthesis reaction. The spinel, prepared with sucrose, shows a higher specific surface area, pore volume, higher amount of small particles fraction, higher thermal stability, and as a result, more exposed active sites on the sample surface that lead to higher catalytic activity in the studied oxidation reactions. After the catalytic tests, both samples do not undergo any substantial phase and morphological changes; thus, they could be applied in low-temperature hydrocarbon oxidation reactions.

Keywords: MnCoFeO₄; spinel; solution-combustion synthesis; complete oxidation; hydrocarbons

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MDPI and ACS Style

Tumbalev, V.; Kovacheva, D.; Spassova, I.; Velinova, R.; Tyuliev, G.; Velinov, N.; Naydenov, A. Novel Nanosized Spinel MnCoFeO₄ for Low-Temperature Hydrocarbon Oxidation. Nanomaterials 2022, 12, 3900. https://doi.org/10.3390/nano12213900

AMA Style

Tumbalev V, Kovacheva D, Spassova I, Velinova R, Tyuliev G, Velinov N, Naydenov A. Novel Nanosized Spinel MnCoFeO₄ for Low-Temperature Hydrocarbon Oxidation. Nanomaterials. 2022; 12(21):3900. https://doi.org/10.3390/nano12213900

Chicago/Turabian Style

Tumbalev, Vencislav, Daniela Kovacheva, Ivanka Spassova, Ralitsa Velinova, Georgi Tyuliev, Nikolay Velinov, and Anton Naydenov. 2022. "Novel Nanosized Spinel MnCoFeO₄ for Low-Temperature Hydrocarbon Oxidation" Nanomaterials 12, no. 21: 3900. https://doi.org/10.3390/nano12213900

APA Style

Tumbalev, V., Kovacheva, D., Spassova, I., Velinova, R., Tyuliev, G., Velinov, N., & Naydenov, A. (2022). Novel Nanosized Spinel MnCoFeO₄ for Low-Temperature Hydrocarbon Oxidation. Nanomaterials, 12(21), 3900. https://doi.org/10.3390/nano12213900

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Novel Nanosized Spinel MnCoFeO₄ for Low-Temperature Hydrocarbon Oxidation

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