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https://hdl.handle.net/10442/12713
Εξειδίκευση τύπου : | Άρθρο σε επιστημονικό περιοδικό |
Τίτλος: | Exfoliation and Chemical Modification Using Microwave Irradiation Affording Highly Functionalized Graphene |
Δημιουργός/Συγγραφέας: | Economopoulos, Solon P. Rotas, Georgios Miyata, Yasumitsu Shinohara, Hisanori [EL] Ταγματάρχης, Νίκος[EN] Tagmatarchis, Nikos |
Εκδότης: | American Chemical Society |
Τόπος έκδοσης: | Washington |
Ημερομηνία: | 2010-12 |
Γλώσσα: | Αγγλικά |
ISSN: | 1936-0851 |
DOI: | 10.1021/nn101735e |
Περίληψη: | Effident exfoliation of graphite flakes by sonicating them in benzylamine was accomplished, affording stable suspensions of few-layers graphene. The latter were chemically modified following the Bingel reaction conditions, with the aid of microwave Irradiation, producing highly functionalized graphene-based hybrid materials. The resulting hybrid materials, possessing cyclopropanated malonate units covalently grafted onto the graphene skeleton, formed stable suspensions for several days in a variety of organic solvents and were characterized by diverse and complementary spectroscopic, thermal, gravimetric, and high-resolution electron microscopy techniques. When a malonate derivative, bearing the electro-active extended tetrathiafulvalene (exTTF) moiety, was synthesized and used for the functionalization of graphene, energy dispersive X-ray (EDX) analysis verified the presence of sulfur in the corresponding graphene-based hybrid material. Moreover, the redox potentials of the exTTF-graphene hybrid material were determined by electrochemistry, while the formation of a radical ion pair that includes one-electron oxidation of exTTF and one-electron reduction of graphene was suggested with the energy gap of (graphene)(center dot-)-(exTTF)(center dot+) being calculated as 1.23 eV. |
Τίτλος πηγής δημοσίευσης: | Acs Nano |
Τόμος/Κεφάλαιο: | 4 |
Τεύχος: | 12 |
Σελίδες: | 7499-7507 |
Θεματική Κατηγορία: | [EL] Χημεία (Γενικά)[EN] Chemistry (General) [EL] Επιστήμη (Γενικά)[EN] Science (General) [EL] Τεχνολογία (Γενικά)[EN] Technology (General) |
Λέξεις-Κλειδιά: | graphene exfoliation functionalization microwaves characterization Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary |
Αξιολόγηση από ομότιμους (peer reviewed): | Ναι |
Κάτοχος πνευματικών δικαιωμάτων: | © AMER CHEMICAL SOC |
Εμφανίζεται στις συλλογές: | Ινστιτούτο Θεωρητικής και Φυσικής Χημείας (ΙΘΦΧ) - Επιστημονικό έργο
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