Journal
SOLID STATE COMMUNICATIONS
Volume 152, Issue 6, Pages 466-468Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ssc.2012.01.005
Keywords
Manganese-graphene complexes; Reduced graphene oxide; Electron paramagnetic resonance; Nuclear magnetic resonance
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Funding
- Israeli Ministry of Science, Culture, and Sport (MOST-RFBR) [3-5708]
- Russian Foundation for Basic Research (RFBR) [09-02-92477- MNKSa]
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We report on EPR and NMR study of reduced graphene oxide (RGO) produced by the Hummers method. We show that this RGO sample reveals isolated Mn2+ ions, which originate from potassium permanganate used in the process of the sample preparation. These ions form paramagnetic charge-transfer complexes with the graphene planes and contribute to the C-13 spin lattice relaxation. (C) 2012 Elsevier Ltd. All rights reserved.
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