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Scarpa D, Iuliano M, Cirillo C, Iovane P, Borriello C, Portofino S, Ponticorvo E, Galvagno S, Sarno M. Self-assembled monolayers of reduced graphene oxide for robust 3D-printed supercapacitors. Sci Rep 2024; 14:14998. [PMID: 38951136 PMCID: PMC11217268 DOI: 10.1038/s41598-024-65635-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Accepted: 06/21/2024] [Indexed: 07/03/2024] Open
Abstract
Herein, additive manufacturing, which is extremely promising in different sectors, has been adopted in the electrical energy storage field to fabricate efficient materials for supercapacitor applications. In particular, Al2O3-, steel-, and Cu-based microparticles have been used for the realization of 3D self-assembling materials covered with reduced graphene oxide to be processed through additive manufacturing. Functionalization of the particles with amino groups and a subsequent "self-assembly" step with graphene oxide, which was contextually partially reduced to rGO, was carried out. To further improve the electrical conductivity and AM processability, the composites were coated with a polyaniline-dodecylbenzene sulfonic acid complex and further blended with PLA. Afterward, they were extruded in the form of filaments, printed through the fused deposition modeling technique, and assembled into symmetrical solid-state devices. Electrochemical tests showed a maximum mass capacitance of 163 F/g, a maximum energy density of 15 Wh/Kg at 10 A/g, as well as good durability (85% capacitance retention within 5000 cycles) proving the effectiveness of the preparation and the efficiency of the as-manufactured composites.
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Affiliation(s)
- Davide Scarpa
- Department of Physics "E.R. Caianiello", University of Salerno, Via Giovanni Paolo II, 132-84084, Fisciano, Italy.
- NANO_MATES Research Centre, University of Salerno, Via Giovanni Paolo II, 132-84084, Fisciano, Italy.
| | - Mariagrazia Iuliano
- Department of Physics "E.R. Caianiello", University of Salerno, Via Giovanni Paolo II, 132-84084, Fisciano, Italy
- NANO_MATES Research Centre, University of Salerno, Via Giovanni Paolo II, 132-84084, Fisciano, Italy
| | - Claudia Cirillo
- Department of Physics "E.R. Caianiello", University of Salerno, Via Giovanni Paolo II, 132-84084, Fisciano, Italy
- NANO_MATES Research Centre, University of Salerno, Via Giovanni Paolo II, 132-84084, Fisciano, Italy
| | - Pierpaolo Iovane
- Nanomaterials and Devices Laboratory (SSPT-PROMAS-NANO), ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Piazzale E. Fermi 1, 80055, Portici, NA, Italy
| | - Carmela Borriello
- Nanomaterials and Devices Laboratory (SSPT-PROMAS-NANO), ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Piazzale E. Fermi 1, 80055, Portici, NA, Italy
| | - Sabrina Portofino
- Nanomaterials and Devices Laboratory (SSPT-PROMAS-NANO), ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Piazzale E. Fermi 1, 80055, Portici, NA, Italy
| | - Eleonora Ponticorvo
- Department of Physics "E.R. Caianiello", University of Salerno, Via Giovanni Paolo II, 132-84084, Fisciano, Italy
- NANO_MATES Research Centre, University of Salerno, Via Giovanni Paolo II, 132-84084, Fisciano, Italy
| | - Sergio Galvagno
- Nanomaterials and Devices Laboratory (SSPT-PROMAS-NANO), ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Piazzale E. Fermi 1, 80055, Portici, NA, Italy
| | - Maria Sarno
- Department of Physics "E.R. Caianiello", University of Salerno, Via Giovanni Paolo II, 132-84084, Fisciano, Italy
- NANO_MATES Research Centre, University of Salerno, Via Giovanni Paolo II, 132-84084, Fisciano, Italy
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