Journal
MICROPOROUS AND MESOPOROUS MATERIALS
Volume 220, Issue -, Pages 129-135Publisher
ELSEVIER
DOI: 10.1016/j.micromeso.2015.08.027
Keywords
Nitrogen-doped; Porous carbon; Hydrothermal carbonization; Hydrogen adsorption; Carbon dioxide adsorption
Categories
Funding
- National Natural Science Foundation of China [21201048]
- Ministry of Science and Technology of China [2013CB934200]
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Recent years, heteroatoms modified porous carbon materials have attracted particular attention due to their superior performance in adsorption, catalysis, or electrochemistry, etc. In this paper, we present a method to synthesize porous nitrogen-doped carbon materials via hydrothermal carbonization and soft templating process by using nitrogen-containing biomass derivative as precursor. The obtained materials possess relatively large Brunauer-Emmet-Teller specific surface area (up to 980 m(2) g(-1)), pore volume, as well as high nitrogen content (6.3 wt%). The morphology, porosity, and the functionalities were investigated by using scanning and transmission electron microscope, nitrogen sorption instrument, elemental analyzer, X-ray photoelectron spectroscope, and Fourier transform infrared spectrometer, etc. The effects of soft template concentration and the pH value on the properties of the obtained materials are discussed. Furthermore, the carbon materials exhibit relatively good properties for gas adsorption: the carbon dioxide adsorption capacities (3.7-4.7 mmol g(-1)) and the hydrogen adsorption capacity (up to 9.0 mmol g(-1)). (C) 2015 Elsevier Inc. All rights reserved.
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