Direct synthesis of honeycomb-like porous carbons from potassium cinnamate for CO2 capture

In the current work, honeycomb-like porous carbons were prepared from the direct pyrolysis of potassium cinnamate without the use of any activators or templates. The carbons' surface area reached 2198 m2/g. N-doped porous carbons were also prepared by co-pyrolysis of potassium cinnamate and urea. Effects of the pyrolysis temperature on textural properties and N-doping were studied. CO2 adsorption performances of the carbons were investigated at 0 and 25 degrees C. A high CO2 uptake of 3.92 mmol/g was achieved at 25 degrees C and 1 bar.

Automated summary

Honeycomb-like porous carbons were prepared directly from potassium cinnamate pyrolysis without the need for activators or templates, with a surface area of 2198 m2/g. N-doped porous carbons were also synthesized by co-pyrolysis of potassium cinnamate and urea, and the effects of pyrolysis temperature on textural properties and N-doping were investigated. The CO2 adsorption performances of the carbons at 0 and 25 degrees C were studied, demonstrating a high CO2 uptake of 3.92 mmol/g at 25 degrees C and 1 bar pressure.