Synthesis of nitrogen doped mesoporous carbons for carbon dioxide capture

作者: Chitrakshi Goel , Haripada Bhunia , Pramod K Bajpai , None

DOI: 10.1039/C5RA05684E

关键词:

摘要: Nitrogen doped mesoporous carbons were prepared by nanocasting method at varying carbonization temperatures followed characterization in terms of their structural, textural and chemical properties. Melamine-formaldehyde resin silica used as the polymeric precursor hard template respectively. Meso-structural ordering was retained suggested structural analysis. Evolution nitrogen oxygen functionalities along with properties regulated temperature. The obtained 700 °C exhibited a maximum surface area 266 m2 g−1 content up to 21 weight%. CO2 adsorption studied fixed-bed column several (30 100 °C) concentrations (5 12.5%). Adsorbent reusability examined carrying out multiple adsorption–desorption cycles. MF-700 showed highest capacity 0.83 mmol 30 °C. kinetics investigated fitting experimental uptake data different kinetic models, which fractional order model found fit over complete range error% between predicted within 5%. In addition, isosteric heat estimated be around 17 kJ mol−1, confirming occurrence physiosorption process.

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