Synthesis of nitrogen-doped graphitic carbon nanocapsules from a poly(ionic liquid) for CO<sub>2</sub> capture

LIU Lei; LU Juan; ZHANG Yi-xin; LIU Meng; YU Yi-feng; CHEN Ai-bing

doi:10.1016/S1872-5805(17)60129-X

Volume 32 Issue 4

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Article Navigation > New Carbon Mater. > 2017 > 32(4): 380-384

LIU Lei, LU Juan, ZHANG Yi-xin, LIU Meng, YU Yi-feng, CHEN Ai-bing. Synthesis of nitrogen-doped graphitic carbon nanocapsules from a poly(ionic liquid) for CO2 capture. New Carbon Mater., 2017, 32(4): 380-384. doi: 10.1016/S1872-5805(17)60129-X

Citation:

LIU Lei, LU Juan, ZHANG Yi-xin, LIU Meng, YU Yi-feng, CHEN Ai-bing. Synthesis of nitrogen-doped graphitic carbon nanocapsules from a poly(ionic liquid) for CO₂ capture. New Carbon Mater., 2017, 32(4): 380-384. doi: 10.1016/S1872-5805(17)60129-X

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Synthesis of nitrogen-doped graphitic carbon nanocapsules from a poly(ionic liquid) for CO₂ capture

doi: 10.1016/S1872-5805(17)60129-X

1.
College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China;
2.
Hebei Key Laboratory of Molecular Chemistry for Drug, Shijiazhuang 050018, China

Funds: National Natural Science Foundation of China (20676070);Natural Science Foundation of Hebei Province (B2015208109);Hebei Training Program for Talent Project (A201500117);Hebei One Hundred Excellent Innovative Talent Program (III)(SLRC2017034);Hebei Science and Technology Project (17214304D,16214510D).

Received Date: 2017-06-15
Accepted Date: 2017-08-31
Rev Recd Date: 2017-08-05
Publish Date: 2017-08-28

Abstract

Abstract

A poly(ionic liquid) was prepared from an ionic liquid monomer that was obtained by the reaction of 1-vinylimidazole, 4-vinyl-benzene chloride with 2,6-di-tert-butyl-4-methylphenol. The poly(ionic liquid) was mixed with K₃[Fe(CN)₆] and a 5 nm silica colloidal sol, carbonized at 900℃ for 4 h, and sequentially treated with HNO₃ and NaOH to remove the iron and silica to obtain nitrogen-doped graphitic carbon nanocapsules. The iron and silica acted as a graphitization catalyst and template, respectively. The nitrogen-doped graphitic carbon nanocapsules have a diameter of 50 nm and a wall thickness of 6 nm and have a high adsorption capacity and good recyclability for CO₂ capture. The addition of SiO₂ nanoparticles in the synthesis significantly increased the specific surface area from 100.4 to 865.7 m²·g^-1 and the CO₂ adsorption capacity from 0.76 to 2.14 mmol·g^-1.
- Ionic liquid,
- Nitrogen doped,
- Graphitic,
- Carbon nanocapsules,
- CO₂ capture

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References

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