Large scale synthesis of N-doped multi-layered graphene sheets by simple arc-discharge method
Large scale synthesis of N-doped multi-layered graphene sheets by simple arc-discharge method
复制标题
简单电弧放电法大规模合成氮掺杂多层石墨烯片
DOI：
10.1016/j.carbon.2009.09.013
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发表时间：
2010-01-01
期刊：
影响因子：
10.9
通讯作者：
Xu, Shukun
中科院分区：
文献类型：
--
作者：
Li, Nan;Wang, Zhiyong;Xu, Shukun
采用纯石墨棒之间直流电弧放电的方法大规模合成了氮掺杂多层石墨烯片。为了使用NH3作为缓冲气体之一，在多层石墨烯片中掺杂N而不添加其他氮源。通过透射电子显微镜、拉曼光谱、热重分析、X射线光电子能谱和元素分析对所得产物进行了表征。石墨烯片主要为2-6层，尺寸约为100-200 nm。多层石墨烯片可以通过简单的热处理过程来纯化。只需改变大气中NH3的比例即可调节多层石墨烯片上N原子的含量。 (C) 2009 Elsevier Ltd. 保留所有权利。
N-doped multi-layered graphene sheets were synthesized in large scale by the method of direct current arc-discharge between pure graphite rods. For the use of NH3 as one of the buffer gas, the multi-layered graphene sheets were doped with N without the addition of other nitrogen source. The product so obtained has been characterized by transmission electron microscopy, Raman spectroscopy, thermogravimetric analysis, X-ray photoelectron spectroscopy and element analysis. The graphene sheets are mainly of 2-6 layers and their sizes are about 100-200 nm. The multi-layered graphene sheets can be purified by a simple heat treatment process. The content of N atoms on the multi-layered graphene sheets can be tuned by simply changing the proportion of NH3 in the atmosphere. (C) 2009 Elsevier Ltd. All rights reserved.