期刊
NANO ENERGY
卷 19, 期 -, 页码 117-127出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2015.10.004
关键词
Hydrothermal carbonization; Carbon nanofibers; Aerogels; Nitrogen-doping; Oxygen reduction reaction; Supercapacitors
类别
资金
- National Natural Science Foundation of China [21431006, 21521001, 91227103]
- Users with Excellence and Scientific Research Grant of Hefei Science Center of Chinese Academy of Sciences [2015HSC-UE007, 2015SRG-HSC038]
- National Basic Research Program of China [2013CB933900, 2014CB931800]
- Chinese Academy of Sciences [KJZD-EW-M01-1]
Doping heteroatoms into carbon nanomaterials will greatly enhance their physiochemical properties, however, it is still challenging to prepare doped nanocarbons in large-scale by economical ways for industrial applications. Here, we report the macroscopic-scale synthesis of a new class of nitrogen-doped carbonaceous nanofibers (N-CNFs) aerogels with diameter from tens to hundreds nanometers by a template-directed hydrothermal carbonization (HTC) process, where ultrathin tellurium nanowires (TeNWs) as templates and nitrogen-containing carbohydrates as carbon sources. High-temperature treatment and CO2 activation of the N-CNFs endow them with high conductivity and porosity, resulting in outstanding performances as electrode materials for electrocatalysts and supercapacitors. (C) 2015 Elsevier Ltd. All rights reserved.
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