期刊
APPLIED SURFACE SCIENCE
卷 439, 期 -, 页码 371-373出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2018.01.059
关键词
Graphene; Nanoflakes; Post-doping; Nitrogen-doped carbon; Functionalization
类别
资金
- RFBR [16-29-06439 ofi_m]
Few-layer graphene nanoflakes with the bent edges, diameter of 15-40 nm and thickness of 6-7 graphene layers have been synthesized using MgO-templated CVD growth. Their oxidation by nitric acid led to the high oxygen content of 18 at.%, a third of which was attributed to carboxylic groups. Oxidized nanoflakes were post-doped by nitrogen groups using hydrothermal treatment at 220 degrees C with ammonia and urea water solutions resulting in corresponding nitrogen content of 7 and 5 at.%. Synthesized and treated materials were characterized by XPS, Raman spectroscopy and electron microscopy. (C) 2018 Elsevier B.V. All rights reserved.
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