132221 20260218073121.0 doi 10.1021/acs.jpcc.3c06871 sideral 137538 ART-2024-137538 eng Barrionuevo, Santiago D. Stacking-configuration-preserved Graphene quantum dots electrochemically obtained from CVD Graphene 2024 Access copy available to the general public Unrestricted The layer stacking morphology in nanocarbons is paramount for achieving new properties and outperforming applications. Here, we demonstrate that graphene quantum dots (GQDs) retain crystallinity and a stacking structure from CVD graphene grown on Ni foam. Our results reveal that GQD subdomains comprise a few-layer graphene structure in the AB···AB and ABC···ABC stacking configuration. HR-TEM images along with a multiple-approach characterization (XRD, XPS, UV–vis, AFM, and ATR-IR) exhibit ∼3.0 to ∼8.0 nm crystalline GQDs with 2–6 graphene layers thick indicating a disk-shape structure. The UV–vis profiles show changes in color of the dispersion (from colorless to red) during and after the electrochemistry, suggesting a systematic electrooxidation of graphene into smaller, highly crystalline, and more complex sp2/sp3 structures. Importantly, a control experiment performed under the same conditions but with a graphitic rod exhibited large, polydisperse, and multilayer carbon structures. This work demonstrates a relatively easy electrochemical synthesis to obtain GQDs which retain the pristine and, in turn, distinctive structure of graphene grown on Ni foam. info:eu-repo/grantAgreement/EC/H2020/101007825/EU/ULtra ThIn MAgneto Thermal sEnsor-Ing/ULTIMATE-I This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 101007825-ULTIMATE-I info:eu-repo/grantAgreement/EC/H2020/872631 /EU/Memristive and multiferroic materials for emergent logic units in nanoelectronics/MELON This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 872631 -MELON info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 3.2 2024 CHEMISTRY, PHYSICAL 95 / 185 = 0.514 2024 Q3 T2 NANOSCIENCE & NANOTECHNOLOGY 88 / 147 = 0.599 2024 Q3 T2 MATERIALS SCIENCE, MULTIDISCIPLINARY 237 / 461 = 0.514 2024 Q3 T2 0.914 2024 Physical and Theoretical Chemistry 2024 Q1 Electronic, Optical and Magnetic Materials 2024 Q1 Surfaces, Coatings and Films 2024 Q1 Energy (miscellaneous) 2024 Q2 Nanoscience and Nanotechnology 2024 Q2 6.2 2024 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Fioravanti, Federico Núñez, Jorge M. Muñeton Arboleda, David Lacconi, Gabriela I. Bellino, Martín G. (orcid)0000-0002-1296-4793 Aguirre, Myriam H. Universidad de Zaragoza Ibáñez, Francisco J. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 128, 3 (2024), 1393-1403 J. phys. chem., C Journal of physical chemistry. C. 1932-7447 2328056 http://zaguan.unizar.es/record/132221/files/texto_completo.pdf Postprint info:eu-repo/date/embargoEnd/2025-01-10 1332569 http://zaguan.unizar.es/record/132221/files/texto_completo.jpg?subformat=icon icon Postprint info:eu-repo/date/embargoEnd/2025-01-10 oai:zaguan.unizar.es:132221 articulos driver 2026-02-17-20:20:13 ARTICLE