Graphene-Wine Waste Derived Carbon Composites for Advanced Supercapacitors
In this work, we investigate the potential of a novel carbon composite as an electrode for high-voltage electrochemical double-layer capacitors. The carbon composite was prepared following a sustainable synthetic approach that first involved the pyrolysis and then the activation of a precursor forme...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-06-01
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| Series: | ChemEngineering |
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| Online Access: | https://www.mdpi.com/2305-7084/6/4/49 |
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| author | Violeta Ureña-Torres Gelines Moreno-Fernández Juan Luis Gómez-Urbano Miguel Granados-Moreno Daniel Carriazo |
| author_facet | Violeta Ureña-Torres Gelines Moreno-Fernández Juan Luis Gómez-Urbano Miguel Granados-Moreno Daniel Carriazo |
| author_sort | Violeta Ureña-Torres |
| collection | DOAJ |
| description | In this work, we investigate the potential of a novel carbon composite as an electrode for high-voltage electrochemical double-layer capacitors. The carbon composite was prepared following a sustainable synthetic approach that first involved the pyrolysis and then the activation of a precursor formed by winery wastes and graphene oxide. The composite prepared in this way shows a very high specific surface area (2467 m<sup>2</sup>·g<sup>−1</sup>) and an optimum pore size distribution for their use in supercapacitor electrodes. Graphene-biowaste-derived carbon composites are tested as active electrode materials in two different non-aqueous electrolytes, the ammonium salt-based conventional organic electrolyte and one imidazolium-based ionic liquid (1 M Et<sub>4</sub>NBF<sub>4</sub>/ACN and EMINTFSI). It was found that the presence of graphene oxide led to significant morphological and textural changes, which result in high-energy and power densities of ~27 W·h·kg<sup>−1</sup> at 13,026 W·kg<sup>−1</sup>. Moreover, the devices assembled retain above 70% of the initial capacitance after 6000 cycles in the case of the organic electrolyte. |
| first_indexed | 2024-03-09T13:40:20Z |
| format | Article |
| id | doaj.art-73c479577f954deaaad89f0ee64e636a |
| institution | Directory Open Access Journal |
| issn | 2305-7084 |
| language | English |
| last_indexed | 2024-03-09T13:40:20Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ChemEngineering |
| spelling | doaj.art-73c479577f954deaaad89f0ee64e636a2023-11-30T21:07:24ZengMDPI AGChemEngineering2305-70842022-06-01644910.3390/chemengineering6040049Graphene-Wine Waste Derived Carbon Composites for Advanced SupercapacitorsVioleta Ureña-Torres0Gelines Moreno-Fernández1Juan Luis Gómez-Urbano2Miguel Granados-Moreno3Daniel Carriazo4Centre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, SpainCentre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, SpainCentre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, SpainCentre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, SpainCentre for Cooperative Research on Alternative Energies (CIC energiGUNE), Basque Research and Technology Alliance (BRTA), Alava Technology Park, Albert Einstein 48, 01510 Vitoria-Gasteiz, SpainIn this work, we investigate the potential of a novel carbon composite as an electrode for high-voltage electrochemical double-layer capacitors. The carbon composite was prepared following a sustainable synthetic approach that first involved the pyrolysis and then the activation of a precursor formed by winery wastes and graphene oxide. The composite prepared in this way shows a very high specific surface area (2467 m<sup>2</sup>·g<sup>−1</sup>) and an optimum pore size distribution for their use in supercapacitor electrodes. Graphene-biowaste-derived carbon composites are tested as active electrode materials in two different non-aqueous electrolytes, the ammonium salt-based conventional organic electrolyte and one imidazolium-based ionic liquid (1 M Et<sub>4</sub>NBF<sub>4</sub>/ACN and EMINTFSI). It was found that the presence of graphene oxide led to significant morphological and textural changes, which result in high-energy and power densities of ~27 W·h·kg<sup>−1</sup> at 13,026 W·kg<sup>−1</sup>. Moreover, the devices assembled retain above 70% of the initial capacitance after 6000 cycles in the case of the organic electrolyte.https://www.mdpi.com/2305-7084/6/4/49biowastesEDLC2-D carbonsadvanced electrolytes |
| spellingShingle | Violeta Ureña-Torres Gelines Moreno-Fernández Juan Luis Gómez-Urbano Miguel Granados-Moreno Daniel Carriazo Graphene-Wine Waste Derived Carbon Composites for Advanced Supercapacitors ChemEngineering biowastes EDLC 2-D carbons advanced electrolytes |
| title | Graphene-Wine Waste Derived Carbon Composites for Advanced Supercapacitors |
| title_full | Graphene-Wine Waste Derived Carbon Composites for Advanced Supercapacitors |
| title_fullStr | Graphene-Wine Waste Derived Carbon Composites for Advanced Supercapacitors |
| title_full_unstemmed | Graphene-Wine Waste Derived Carbon Composites for Advanced Supercapacitors |
| title_short | Graphene-Wine Waste Derived Carbon Composites for Advanced Supercapacitors |
| title_sort | graphene wine waste derived carbon composites for advanced supercapacitors |
| topic | biowastes EDLC 2-D carbons advanced electrolytes |
| url | https://www.mdpi.com/2305-7084/6/4/49 |
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