Journal
CARBON
Volume 69, Issue -, Pages 502-514Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2013.12.058
Keywords
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Funding
- National Basic Research Program of China (973 Program) [2012CB821700]
- Major International (Regional) Joint Research Project of NSFC [21120102034]
- NSFC Project [20831002, 21201074]
- Future Fellowships of Australian Research Council [FT100100344]
- Australian Research Council [FT100100344] Funding Source: Australian Research Council
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Nitrogen-containing ordered mesoporous carbon has been prepared by a soft-templating strategy, without using intricate prepolymerization and hydrothermal solidification steps. This strategy involves the use of hexamethylenetetramine, slow releasing source of formaldehyde for the self-assembly of resorcinol-urea-formaldehyde resin, to mediate the formation of nitrogen enriched carbon organic precursor, whereas ampliphilic triblock copolymer (Pluronic F127) was used as a template. Small angle X-ray diffraction, transmission electron microcopy, nitrogen sorption demonstrated that the obtained mesoporous carbon possessed a body-centered cubic hnIn structure with a high surface area. X-ray photoelectron spectroscopy revealed that the incorporated nitrogen was present in the form of pyridine, pyrrolyic/pyridine, quaternary and oxidized nitrogen. The presence of nitrogen groups in the resulting material significantly improved the CO2 adsorption capacity for mesoporous carbon (3.3 mmol g(-1) at 0 degrees, 2.6 mmol g(-1) at 25 degrees C) and activated mesocarbon (4.9 mmol g(-1) at 0 degrees C, 3.1 mmol g at 25 degrees C) at 0.95 bar. This feature substantiates N-doped mesoporous carbon as a promising high-performance CO2 capture sorbent. (C) 2014 Elsevier Ltd. All rights reserved.
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