Engineering Porphyrin Donor–Triazine Acceptor Frameworks From 5,10,15,20‐Tetrakis(4‐Cyanophenyl)Porphyrin for Electrochemical Applications
Aruntima Das, Arijit Maity, Sinthia Saha, Bholanath Maity, Asamanjoy BhuniaABSTRACT
The growing global population, limited resources, and increasing technological demands highlight the urgent need for advanced energy‐storage solutions. In this context, designing covalent triazine‐based frameworks (CTFs) at low temperature as electrode material is economically and practically advantageous. Herein, we present a CTF material, TCPP–CTF, constructed from 5,10,15,20‐tetrakis(4‐cyanophenyl)porphyrin (TCPP) monomer at low temperature (∼50°C) using the solvothermal method. Characterization of the resulting framework structures was carried out by infrared (IR) spectroscopy, solid‐state 13 C CP/MAS NMR analysis, elemental analysis, scanning electron microscopy (SEM), X‐ray photoelectron spectroscopy (XPS), and gas sorption measurements. The Brunauer–Emmett–Teller (BET) specific surface area of TCPP–CTF is 712 m 2 g − 1 . The synthesized electrode materials showed a high specific capacitance of 249 F g − 1 at a scan rate of 10 mV s − 1 in three‐electrode configuration, owing to the presence of donor–acceptor units in the framework that enhance intramolecular charge transfer. The CTF also ensured excellent cycling stability even after 10000 cycles.