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

Authors：Liu, Yuewei; Cui, Hongmin; Xu, Jianguo; Shi, Jinsong^*; Yan, Nanfu; Zou, Jiyong; You, Shengyong

Source：Materials Letters, 2023, 344: 134443.

DOI：10.1016/j.matlet.2023.134443

• Carbon materials
• Porous materials
• Potassium cinnamate
• CO 2 adsorption

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.