Nickel-Copper Oxide Catalysts Deposited on Stainless Steel Meshes by Plasma Jet Sputtering: Comparison with Granular Analogues and Synergistic Effect in VOC Oxidation
A novel method for the preparation of Ni-Cu oxide catalysts—deposition on stainless steel meshes using hollow cathode plasma jet sputtering—was studied. This method allows the preparation of thin oxide films. Consequently, the whole volume of the active phase is readily accessible for the reactants...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-03-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/13/3/595 |
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| author | Květa Jirátová Petr Soukal Anna Kapran Timur Babii Jana Balabánová Martin Koštejn Martin Čada Jaroslav Maixner Pavel Topka Zdeněk Hubička František Kovanda |
| author_facet | Květa Jirátová Petr Soukal Anna Kapran Timur Babii Jana Balabánová Martin Koštejn Martin Čada Jaroslav Maixner Pavel Topka Zdeněk Hubička František Kovanda |
| author_sort | Květa Jirátová |
| collection | DOAJ |
| description | A novel method for the preparation of Ni-Cu oxide catalysts—deposition on stainless steel meshes using hollow cathode plasma jet sputtering—was studied. This method allows the preparation of thin oxide films. Consequently, the whole volume of the active phase is readily accessible for the reactants and can be employed in the catalytic reaction due to the negligible effect of internal diffusion. As a result, the activity of our sputtered catalyst was seven times higher in ethanol oxidation and 61 times higher in toluene oxidation than that of the corresponding granular catalyst. Moreover, due to stainless steel meshes used as a catalyst support, the pressure drop across the catalyst bed was lower. Finally, the catalytic activity of the sputtered Ni-Cu oxide catalyst with Ni:Cu molar ratio of 1:1 in ethanol oxidation was 1.7 times higher than that of the commercial EnviCat<sup>®</sup> VOC-1544 catalyst, while the amount of the active phase in the catalyst bed was 139 times lower. The outstanding performance of the Ni<sub>0.5</sub>Cu<sub>0.5</sub> catalyst was ascribed to the synergistic effect between the copper and nickel components. |
| first_indexed | 2024-03-11T06:47:35Z |
| format | Article |
| id | doaj.art-5a23ad186af24b509559327141dc1d8a |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-11T06:47:35Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-5a23ad186af24b509559327141dc1d8a2023-11-17T10:11:40ZengMDPI AGCatalysts2073-43442023-03-0113359510.3390/catal13030595Nickel-Copper Oxide Catalysts Deposited on Stainless Steel Meshes by Plasma Jet Sputtering: Comparison with Granular Analogues and Synergistic Effect in VOC OxidationKvěta Jirátová0Petr Soukal1Anna Kapran2Timur Babii3Jana Balabánová4Martin Koštejn5Martin Čada6Jaroslav Maixner7Pavel Topka8Zdeněk Hubička9František Kovanda10Institute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech RepublicInstitute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech RepublicInstitute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech RepublicDepartment of Solid State Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech RepublicInstitute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech RepublicInstitute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech RepublicInstitute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech RepublicCentral Laboratories, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech RepublicInstitute of Chemical Process Fundamentals of the Czech Academy of Sciences, Rozvojová 135, 165 02 Prague, Czech RepublicInstitute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech RepublicDepartment of Solid State Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech RepublicA novel method for the preparation of Ni-Cu oxide catalysts—deposition on stainless steel meshes using hollow cathode plasma jet sputtering—was studied. This method allows the preparation of thin oxide films. Consequently, the whole volume of the active phase is readily accessible for the reactants and can be employed in the catalytic reaction due to the negligible effect of internal diffusion. As a result, the activity of our sputtered catalyst was seven times higher in ethanol oxidation and 61 times higher in toluene oxidation than that of the corresponding granular catalyst. Moreover, due to stainless steel meshes used as a catalyst support, the pressure drop across the catalyst bed was lower. Finally, the catalytic activity of the sputtered Ni-Cu oxide catalyst with Ni:Cu molar ratio of 1:1 in ethanol oxidation was 1.7 times higher than that of the commercial EnviCat<sup>®</sup> VOC-1544 catalyst, while the amount of the active phase in the catalyst bed was 139 times lower. The outstanding performance of the Ni<sub>0.5</sub>Cu<sub>0.5</sub> catalyst was ascribed to the synergistic effect between the copper and nickel components.https://www.mdpi.com/2073-4344/13/3/595plasma jet sputteringthin filmnickel-copper oxidesstainless steel meshesVOC oxidation |
| spellingShingle | Květa Jirátová Petr Soukal Anna Kapran Timur Babii Jana Balabánová Martin Koštejn Martin Čada Jaroslav Maixner Pavel Topka Zdeněk Hubička František Kovanda Nickel-Copper Oxide Catalysts Deposited on Stainless Steel Meshes by Plasma Jet Sputtering: Comparison with Granular Analogues and Synergistic Effect in VOC Oxidation Catalysts plasma jet sputtering thin film nickel-copper oxides stainless steel meshes VOC oxidation |
| title | Nickel-Copper Oxide Catalysts Deposited on Stainless Steel Meshes by Plasma Jet Sputtering: Comparison with Granular Analogues and Synergistic Effect in VOC Oxidation |
| title_full | Nickel-Copper Oxide Catalysts Deposited on Stainless Steel Meshes by Plasma Jet Sputtering: Comparison with Granular Analogues and Synergistic Effect in VOC Oxidation |
| title_fullStr | Nickel-Copper Oxide Catalysts Deposited on Stainless Steel Meshes by Plasma Jet Sputtering: Comparison with Granular Analogues and Synergistic Effect in VOC Oxidation |
| title_full_unstemmed | Nickel-Copper Oxide Catalysts Deposited on Stainless Steel Meshes by Plasma Jet Sputtering: Comparison with Granular Analogues and Synergistic Effect in VOC Oxidation |
| title_short | Nickel-Copper Oxide Catalysts Deposited on Stainless Steel Meshes by Plasma Jet Sputtering: Comparison with Granular Analogues and Synergistic Effect in VOC Oxidation |
| title_sort | nickel copper oxide catalysts deposited on stainless steel meshes by plasma jet sputtering comparison with granular analogues and synergistic effect in voc oxidation |
| topic | plasma jet sputtering thin film nickel-copper oxides stainless steel meshes VOC oxidation |
| url | https://www.mdpi.com/2073-4344/13/3/595 |
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