Maximizing Roughness Factors in Oxide-Derived Copper Coatings through Electrodeposition Parameters for Enhanced Electrocatalytic Performance
The pursuit of novel techniques for obtaining dispersed copper-based catalysts is crucial in addressing environmental issues like decarbonization. One method for producing nanostructured metals involves the reduction of their oxides, a technique that has found widespread use in CO<sub>2</su...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-12-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/13/23/3064 |
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| author | Eduard E. Levin Alexander A. Kokin Dmitriy A. Morozov Victoria A. Nikitina |
| author_facet | Eduard E. Levin Alexander A. Kokin Dmitriy A. Morozov Victoria A. Nikitina |
| author_sort | Eduard E. Levin |
| collection | DOAJ |
| description | The pursuit of novel techniques for obtaining dispersed copper-based catalysts is crucial in addressing environmental issues like decarbonization. One method for producing nanostructured metals involves the reduction of their oxides, a technique that has found widespread use in CO<sub>2</sub> electroreduction. Currently, the intrinsic activities of oxide-derived copper electrocatalysts produced via different routes cannot be compared effectively due to the lack of information on electrochemically active surface area values, despite the availability of electrochemical methods that enable estimation of surface roughness for highly dispersed copper coatings. In this study, we aim to explore the potential of oxide-derived copper to achieve a high electrochemically active surface area by examining samples obtained from acetic and lactic acid deposition solutions. Our results revealed that Cu<sub>2</sub>O oxides had distinct morphologies depending on the electrodeposition solution used; acetate series samples were dense films with a columnar structure, while electrodeposition from lactic acid yielded a fine-grained, porous coating. The roughness factors of the electroreduced films followed linear relationships with the deposition charge, with significantly different slopes between the two solutions. Notably, a high roughness factor of 650 was achieved for samples deposited from lactic acid solution, which represents one of the highest estimates of electrochemically active surface area for oxide-derived copper catalysts. Our results highlight the importance of controlling the microstructure of the electrodeposited oxide electrocatalysts to maximize surface roughness. |
| first_indexed | 2024-03-09T01:44:43Z |
| format | Article |
| id | doaj.art-275d7a6602f94a039b3a17672e408e39 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T01:44:43Z |
| publishDate | 2023-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-275d7a6602f94a039b3a17672e408e392023-12-08T15:23:04ZengMDPI AGNanomaterials2079-49912023-12-011323306410.3390/nano13233064Maximizing Roughness Factors in Oxide-Derived Copper Coatings through Electrodeposition Parameters for Enhanced Electrocatalytic PerformanceEduard E. Levin0Alexander A. Kokin1Dmitriy A. Morozov2Victoria A. Nikitina3Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaCenter for Energy Science and Technology, Skolkovo Institute of Science and Technology, 121205 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaDepartment of Chemistry, Lomonosov Moscow State University, 119991 Moscow, RussiaThe pursuit of novel techniques for obtaining dispersed copper-based catalysts is crucial in addressing environmental issues like decarbonization. One method for producing nanostructured metals involves the reduction of their oxides, a technique that has found widespread use in CO<sub>2</sub> electroreduction. Currently, the intrinsic activities of oxide-derived copper electrocatalysts produced via different routes cannot be compared effectively due to the lack of information on electrochemically active surface area values, despite the availability of electrochemical methods that enable estimation of surface roughness for highly dispersed copper coatings. In this study, we aim to explore the potential of oxide-derived copper to achieve a high electrochemically active surface area by examining samples obtained from acetic and lactic acid deposition solutions. Our results revealed that Cu<sub>2</sub>O oxides had distinct morphologies depending on the electrodeposition solution used; acetate series samples were dense films with a columnar structure, while electrodeposition from lactic acid yielded a fine-grained, porous coating. The roughness factors of the electroreduced films followed linear relationships with the deposition charge, with significantly different slopes between the two solutions. Notably, a high roughness factor of 650 was achieved for samples deposited from lactic acid solution, which represents one of the highest estimates of electrochemically active surface area for oxide-derived copper catalysts. Our results highlight the importance of controlling the microstructure of the electrodeposited oxide electrocatalysts to maximize surface roughness.https://www.mdpi.com/2079-4991/13/23/3064oxide-derived copperPb UPDelectrodepositionreal surface area |
| spellingShingle | Eduard E. Levin Alexander A. Kokin Dmitriy A. Morozov Victoria A. Nikitina Maximizing Roughness Factors in Oxide-Derived Copper Coatings through Electrodeposition Parameters for Enhanced Electrocatalytic Performance Nanomaterials oxide-derived copper Pb UPD electrodeposition real surface area |
| title | Maximizing Roughness Factors in Oxide-Derived Copper Coatings through Electrodeposition Parameters for Enhanced Electrocatalytic Performance |
| title_full | Maximizing Roughness Factors in Oxide-Derived Copper Coatings through Electrodeposition Parameters for Enhanced Electrocatalytic Performance |
| title_fullStr | Maximizing Roughness Factors in Oxide-Derived Copper Coatings through Electrodeposition Parameters for Enhanced Electrocatalytic Performance |
| title_full_unstemmed | Maximizing Roughness Factors in Oxide-Derived Copper Coatings through Electrodeposition Parameters for Enhanced Electrocatalytic Performance |
| title_short | Maximizing Roughness Factors in Oxide-Derived Copper Coatings through Electrodeposition Parameters for Enhanced Electrocatalytic Performance |
| title_sort | maximizing roughness factors in oxide derived copper coatings through electrodeposition parameters for enhanced electrocatalytic performance |
| topic | oxide-derived copper Pb UPD electrodeposition real surface area |
| url | https://www.mdpi.com/2079-4991/13/23/3064 |
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