Abstract
The development of safe supercapacitor (SC) devices has always been a market demand. The design and fabrication of nonflammable electrodes with lower side effects exhibiting high SC efficiency are the ultimate solution. Tris(4-formylphenyl) phosphate (P) and 2,6-diamino pyridine (Py) have been utilized to prepare a three-dimensional (3D) covalent organic framework (COF), named as PFM-COF1. The phosphonate-rich subunit was incorporated to impart flame retardancy properties for use as a potential electrode for safer SC devices. The PFM-COF1 material was fully characterized using solid-state 13C NMR, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), and powder X-ray diffraction (XRD) techniques. The nonflammable PFM-COF1 was employed for the construction of three-electrode and symmetric (S) two-electrode SC devices and exhibited a specific capacitance (Csp) of 394.28 and 158 F g–1 at 0.5 A g–1 current density. Moreover, PFM-COF1 displayed a high energy density of about 28.44 Wh kg–1 with a power density of 1077.72 W kg–1 at 0.5 A g–1. For 2000 cycles, 81% capacitance retention was observed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
