Počet záznamů: 1
Modification of cobalt oxide electrochemically deposited on stainless steel meshes with co-mn thin films prepared by magnetron sputtering: Effect of preparation method and application to ethanol oxidation.
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SYSNO ASEP 0549564 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Modification of cobalt oxide electrochemically deposited on stainless steel meshes with co-mn thin films prepared by magnetron sputtering: Effect of preparation method and application to ethanol oxidation. Tvůrce(i) Jirátová, Květa (UCHP-M) RID, ORCID, SAI
Perekrestov, Roman (FZU-D)
Dvořáková, M. (CZ)
Balabánová, Jana (UCHP-M) RID, ORCID, SAI
Koštejn, Martin (UCHP-M) RID, SAI, ORCID
Veselý, M. (CZ)
Čada, Martin (FZU-D) RID, ORCID, SAI
Topka, Pavel (UCHP-M) RID, ORCID, SAI
Pokorná, Dana (UCHP-M) RID, SAI
Hubička, Zdeněk (FZU-D) RID, ORCID, SAI
Kovanda, F. (CZ)Číslo článku 1453 Zdroj.dok. Catalysts. - : MDPI
Roč. 11, č. 12 (2021)Poč.str. 24 s. Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova cobalt–manganese oxides ; magnetron sputtering ; stainless steel meshes ; thin film Vědní obor RIV CF - Fyzikální chemie a teoretická chemie Obor OECD Physical chemistry Vědní obor RIV – spolupráce Fyzikální ústav - Fyzika plazmatu a výboje v plynech CEP GA21-04477S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UCHP-M - RVO:67985858 ; FZU-D - RVO:68378271 UT WOS 000735620400001 EID SCOPUS 85120033965 DOI 10.3390/catal11121453 Anotace Magnetron sputtering is an advantageous method for preparing catalysts supported on stainless steel meshes. Such catalysts are particularly suitable for processes carried out at high space velocities. One of these is the catalytic total oxidation of volatile organic compounds (VOC), eco-nomically feasible and environmentally friendly method of VOC abatement. The reactive radio frequency (RF) magnetron sputtering of Mn and Co + Mn mixtures in an oxidation Ar + O2 atmosphere was applied to form additional thin oxide coatings on cobalt oxide layers prepared by electrochemical deposition and heating on stainless steel meshes. Time of the RF magnetron sputtering was changed to obtain MnOx and CoMnOx coatings of various thickness (0.1–0.3 µm). The properties of the supported CoOx–MnOx and CoOx–CoMnOx catalysts were characterized by scanning electron microscopy (SEM), powder X-ray diffraction (XRD), temperature programmed reduction (H2-TPR), Fourier-transform infrared (FTIR) and Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). The catalytic activity was investigated in the deep oxidation of ethanol, which was employed as a model VOC. According to the specific activities (amount of ethanol converted per unit mass of metal oxides per hour), the performance of CoOx–MnOx catalysts was higher than that of CoOx– CoMnOx ones. The catalysts with the smallest layer thickness (0.1 µm) showed the highest catalytic activity. Compared to the commercial pelletized Co–Mn–Al mixed oxide catalyst, the sputtered catalysts exhibited considerably higher (23–87 times) catalytic activity despite the more than 360–570 times lower content of the Co and Mn active components in the catalytic bed. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2022 Elektronická adresa https://www.mdpi.com/2073-4344/11/12/1453
Počet záznamů: 1