Boron‐doped porous carbon material derived from ZIF ‐11: Investigation of cotton fabric supercapacitor and Li‐ion battery performances

Nitrogen-doped porous carbon ([email protected]) and boron-NPC ([email protected]) materials were synthesized by pyrolysis methods, and structural characterization of the compounds was carried out by scanning electron microscopy, transmission electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, Brunauer–Elmet–Teller technique, Raman spectroscopy, and inductively coupled plasma-mass spectrometry techniques. The ZIF-11 was converted to the [email protected] by pyrolysis. [email protected] was fabricated from [email protected] by pyrolysis in the presence of phenylboronic acid. The fabric supercapacitor, sandwich-type supercapacitor, and Li-ion battery performances of [email protected] and [email protected] were investigated. The capacity of the Li-ion cell was found as 720 mAh g−1 for the first cycle, and it was decreased to 250 mAh g−1 after 100 cycles. The capacitance values of the cylindrical devices were 92 F g−1 and 115.6 F g−1, for C1 and C4000 in KOH electrolytes. The [email protected] was used as an electrode material on cotton fabric, and the highest obtained capacitance was 72.8 mF for 0.1 mA, which is a promising result for wearable energy storage materials.