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Self-assembled monolayers of reduced graphene oxide for robust 3D-printed supercapacitors

TitleSelf-assembled monolayers of reduced graphene oxide for robust 3D-printed supercapacitors
Publication TypeArticolo su Rivista peer-reviewed
Year of Publication2024
AuthorsScarpa, Davide, Iuliano Mariagrazia, Cirillo Claudia, Iovane Pierpaolo, Borriello Carmela, Portofino Sabrina, Ponticorvo Eleonora, Galvagno Sergio, and Sarno Maria
JournalScientific Reports
Volume14
Type of ArticleArticle
ISSN20452322
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. © The Author(s) 2024.

Notes

Cited by: 0; All Open Access, Gold Open Access

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85197249284&doi=10.1038%2fs41598-024-65635-8&partnerID=40&md5=1a2db8758014f25bfaf2628db6c82fcb
DOI10.1038/s41598-024-65635-8
Citation KeyScarpa2024