The production of nitrogen-doped graphene from mixed amine plus ethanol flames

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• 作者：Yupeng Zhang ; Bing Cao ; Bin Zhang ; Xiang Qi ; Chunxu Pan
• 关键词：Graphene ; N-doped ; Flame ; Synthesis ; Transmission electron
• 刊名：Thin Solid Films
• 出版年：2012
• 出版时间：30 September, 2012
• 年：2012
• 卷：520
• 期：23
• 页码：6850-6855
• 全文大小：1678 K

文摘

A simple process is described for directly synthesizing pure graphene and N-doped graphene sheets from ethanol flame and amine plus ethanol flames respectively. The microstructures and nitrogen contents of the graphenes were characterized using scanning and transmission electron spectroscopy, X-ray photoelectron spectroscopy and Raman spectroscopy. The results reveal that: (1) The graphene sheets from flame exhibit good transparency and a large size up to 400 ¦Ìm² with few layers and folded edges; (2) The nitrogen-doped graphene sheets have a dominant ¡®pyridine-type¡¯ structure with CN bonds (one N atom bonded to two C atoms); (3) Compared with other methods, the graphene sheets from flame have more surface defects due to the environmental conditions and introduction of nitrogen atoms, which makes it a promising material for supercapacitors and catalyst supports.