Nitrogen-doped carbon microfibers with porous textures
Nitrogen-doped carbon microfibers with porous textures
复制标题
具有多孔结构的氮掺杂碳微纤维
DOI：
10.1016/j.carbon.2013.02.040
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发表时间：
2013-07-01
期刊：
影响因子：
10.9
通讯作者：
Gogotsi, Yury
中科院分区：
文献类型：
--
作者：
Fan, Yanru;Zhao, Zongbin;Gogotsi, Yury
以无水三氯化铁为前驱体，三聚氰胺为碳源和氮源，采用浮式化学气相沉积（FCCVD）法制备了多孔结构的氮掺杂碳微纤维（N-CMFs）。x射线光电子能谱（XPS）表征表明，N-CNFs中的氮原子主要以类吡啶氮和石墨氮的形式存在。FeCl3在H-2中的升华和随后的气相还原产生具有高催化活性的Fe微粒，导致微纤维的生长。电化学研究表明，N-CMFs具有比纯CMFs更大的电容，有望用作超级电容器的电极材料。(C) 2013 Elsevier Ltd.版权所有。
Nitrogen-doped carbon microfibers (N-CMFs) with porous textures have been synthesized by means of a floating catalyst chemical vapor deposition (FCCVD) with anhydrous ferric chloride as a catalyst precursor and melamine as both the carbon and nitrogen source. X-ray photoelectron spectroscope (XPS) characterization of the as-prepared N-CNFs reveals nitrogen atoms in the N-CMFs are mainly in the form of pyridine-like nitrogen and graphitic nitrogen. The sublimation and subsequent gas phase reduction of FeCl3 in H-2 produces Fe micro-particles with high catalytic activity that leads to the growth of the microfibers. The electrochemical studies have shown that N-CMFs have a larger capacitance than the pure CMFs, showing promise for use as electrode materials in supercapacitors. (C) 2013 Elsevier Ltd. All rights reserved.