Meso/Microporous Carbons from Conjugated Hyper-Crosslinked Polymers Based on Tetraphenylethene for High-Performance CO₂ Capture and Supercapacitor.

ABSTRACT: In this study, we successfully synthesized two types of meso/microporous carbon materials through the carbonization and potassium hydroxide (KOH) activation for two different kinds of hyper-crosslinked polymers of TPE-CPOP1 and TPE-CPOP2, which were synthesized by using Friedel-Crafts reaction of tetraphenylethene (TPE) monomer with or without cyanuric chloride in the presence of AlCl₃ as a catalyst. The resultant porous carbon materials exhibited the high specific area (up to 1100 m² g^-1), total pore volume, good thermal stability, and amorphous character based on thermogravimetric (TGA), N₂ adsoprtion/desorption, and powder X-ray diffraction (PXRD) analyses. The as-prepared TPE-CPOP1 after thermal treatment at 800 °C (TPE-CPOP1-800) displayed excellent CO₂ uptake performance (1.74 mmol g^-1 at 298 K and 3.19 mmol g^-1 at 273 K). Furthermore, this material possesses a high specific capacitance of 453 F g^-1 at 5 mV s^-1 comparable to others porous carbon materials with excellent columbic efficiencies for 10,000 cycle at 20 A g^-1.

SUBMITTER: Mohamed MG 

PROVIDER: S-EPMC7866987 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature