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- Title
N-doped porous carbons for CO<sub>2</sub> capture: Rational choice of N-containing polymer with high phenyl density as precursor.
- Authors
Geng, Jian‐Cheng; Xue, Ding‐Ming; Liu, Xiao‐Qin; Shi, Yao‐Qi; Sun, Lin‐Bing
- Abstract
N-doped porous carbons (NPCs) are highly promising for CO2 capture, but their preparation is severely hindered by two factors, namely, the high cost of N-containing polymer precursors and the low yield of carbon products. Here we report for the first time the fabrication of NPCs through the rational choice of the polymer NUT-4, with low cost and high phenyl density, as precursor. For the material NPC-600 obtained from carbonization at 600°C, the yield is as high as 52.1%. The adsorption capacity of CO2 on NPC-600 reaches 6.9 mmol/g at 273 K and 1 bar, which is obviously higher than that on the benchmarks, including 13X zeolite (4.1 mmol/g) and activated carbon (2.8 mmol/g), as well as most reported carbon materials. Our results also demonstrate that the present NPCs can be completely regenerated under mild conditions. The abundant microporosity and 'CO2-philic' (N-doped) sites are responsible for the adsorption performance. © 2016 American Institute of Chemical Engineers AIChE J, 63: 1648-1658, 2017
- Subjects
ELECTRIC light carbons; POLYMERS; CHEMICAL precursors; CARBON products manufacturing; CARBONIZATION
- Publication
AIChE Journal, 2017, Vol 63, Issue 5, p1648
- ISSN
0001-1541
- Publication type
Article
- DOI
10.1002/aic.15531