Facile Preparation of SnO<sub>2</sub>/CuO Nanocomposites as Electrocatalysts for Energy-Efficient Hybrid Water Electrolysis in the Presence of Ethanol
Currently, great importance has been assigned to designing cutting-edge materials for oxygen and hydrogen generation from hybrid water electrolysis as an ideal fuel alternative in energy-conversion devices. This work reports on the electrochemical organic molecule oxidation in alkaline media, intend...
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MDPI AG
2023-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/13/4986 |
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| author | Wilian Jesús Pech-Rodríguez Héctor Manuel García-Lezama Nihat Ege Sahin |
| author_facet | Wilian Jesús Pech-Rodríguez Héctor Manuel García-Lezama Nihat Ege Sahin |
| author_sort | Wilian Jesús Pech-Rodríguez |
| collection | DOAJ |
| description | Currently, great importance has been assigned to designing cutting-edge materials for oxygen and hydrogen generation from hybrid water electrolysis as an ideal fuel alternative in energy-conversion devices. This work reports on the electrochemical organic molecule oxidation in alkaline media, intending to promote water electrolysis at early onset potential with more current densities using Sn-Cu oxidized heterostructures. The electrocatalysts were easily and rapidly synthesized by the microwave-heated synthesis process in the presence of a small quantity of ethylene glycol. The X-ray diffraction and Field Emission Scanning Electron Microscopy analyses confirm the presence of CuO and SnO<sub>2</sub> phases, which significantly improves the electrochemical activity of the composite toward the Oxygen Evolution Reaction (OER) in alkaline media in the presence of 1.0 mol L<sup>−1</sup> ethanol, yielding 8.0 mA cm<sup>−2</sup> at 1.6 V. The charge transfer resistance (R<sub>ct</sub>) was determined using electrochemical impedance spectroscopy, and the result shows that the R<sub>ct</sub> of SnO<sub>2</sub>/CuO drastically decreased. The findings in this work highlight that the designed oxidized heterostructures with non-noble metals are promising candidates for energy conversion devices and sensors. Furthermore, this work confirms the advantages of using an assisted microwave heating process to develop an advanced SnO<sub>2</sub>/CuO composite with the potential to be used in electro-oxidation processes. |
| first_indexed | 2024-03-11T01:43:16Z |
| format | Article |
| id | doaj.art-b39a342ca5e946d8b7b84f32848cb132 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T01:43:16Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-b39a342ca5e946d8b7b84f32848cb1322023-11-18T16:28:42ZengMDPI AGEnergies1996-10732023-06-011613498610.3390/en16134986Facile Preparation of SnO<sub>2</sub>/CuO Nanocomposites as Electrocatalysts for Energy-Efficient Hybrid Water Electrolysis in the Presence of EthanolWilian Jesús Pech-Rodríguez0Héctor Manuel García-Lezama1Nihat Ege Sahin2Department of Mechatronics, Polytechnic University of Victoria, Ciudad Victoria 87138, Tamaulipas, MexicoDepartment of Mechatronics, Polytechnic University of Victoria, Ciudad Victoria 87138, Tamaulipas, MexicoDepartment of Biological and Chemical Engineering, Aarhus University, Abogade 40, 8200 Aarhus, DenmarkCurrently, great importance has been assigned to designing cutting-edge materials for oxygen and hydrogen generation from hybrid water electrolysis as an ideal fuel alternative in energy-conversion devices. This work reports on the electrochemical organic molecule oxidation in alkaline media, intending to promote water electrolysis at early onset potential with more current densities using Sn-Cu oxidized heterostructures. The electrocatalysts were easily and rapidly synthesized by the microwave-heated synthesis process in the presence of a small quantity of ethylene glycol. The X-ray diffraction and Field Emission Scanning Electron Microscopy analyses confirm the presence of CuO and SnO<sub>2</sub> phases, which significantly improves the electrochemical activity of the composite toward the Oxygen Evolution Reaction (OER) in alkaline media in the presence of 1.0 mol L<sup>−1</sup> ethanol, yielding 8.0 mA cm<sup>−2</sup> at 1.6 V. The charge transfer resistance (R<sub>ct</sub>) was determined using electrochemical impedance spectroscopy, and the result shows that the R<sub>ct</sub> of SnO<sub>2</sub>/CuO drastically decreased. The findings in this work highlight that the designed oxidized heterostructures with non-noble metals are promising candidates for energy conversion devices and sensors. Furthermore, this work confirms the advantages of using an assisted microwave heating process to develop an advanced SnO<sub>2</sub>/CuO composite with the potential to be used in electro-oxidation processes.https://www.mdpi.com/1996-1073/16/13/4986electrocatalystsSnO<sub>2</sub>/CuOassisted water electrolysisfacile synthesispolyol method |
| spellingShingle | Wilian Jesús Pech-Rodríguez Héctor Manuel García-Lezama Nihat Ege Sahin Facile Preparation of SnO<sub>2</sub>/CuO Nanocomposites as Electrocatalysts for Energy-Efficient Hybrid Water Electrolysis in the Presence of Ethanol Energies electrocatalysts SnO<sub>2</sub>/CuO assisted water electrolysis facile synthesis polyol method |
| title | Facile Preparation of SnO<sub>2</sub>/CuO Nanocomposites as Electrocatalysts for Energy-Efficient Hybrid Water Electrolysis in the Presence of Ethanol |
| title_full | Facile Preparation of SnO<sub>2</sub>/CuO Nanocomposites as Electrocatalysts for Energy-Efficient Hybrid Water Electrolysis in the Presence of Ethanol |
| title_fullStr | Facile Preparation of SnO<sub>2</sub>/CuO Nanocomposites as Electrocatalysts for Energy-Efficient Hybrid Water Electrolysis in the Presence of Ethanol |
| title_full_unstemmed | Facile Preparation of SnO<sub>2</sub>/CuO Nanocomposites as Electrocatalysts for Energy-Efficient Hybrid Water Electrolysis in the Presence of Ethanol |
| title_short | Facile Preparation of SnO<sub>2</sub>/CuO Nanocomposites as Electrocatalysts for Energy-Efficient Hybrid Water Electrolysis in the Presence of Ethanol |
| title_sort | facile preparation of sno sub 2 sub cuo nanocomposites as electrocatalysts for energy efficient hybrid water electrolysis in the presence of ethanol |
| topic | electrocatalysts SnO<sub>2</sub>/CuO assisted water electrolysis facile synthesis polyol method |
| url | https://www.mdpi.com/1996-1073/16/13/4986 |
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