Black Phosphorus and its nano-composite materials for high performance supercapacitor | Sixth International Conference on Sustainability in Process Industries (SPI) 19-20 Octover 2022 (Book of Abstracts) 2022

Author(s)

Najma Memon National Centre of Excellence in Analytical Chemistry, University of Sindh,Jamshoro,Pakistan

Masood Rehman Halepoto National Centre of Excellence in Analytical Chemistry, University of Sindh,Jamshoro,Pakistan

Naveed Qasim Abro National Centre of Excellence in Analytical Chemistry, University of Sindh,Jamshoro,Pakistan

Abstract

Black phosphorus (BP) in its 2D form shows high hole mobility (?1000 cm2/V.s) which is comparable to other p-type semiconductors. BP is reported as efficient material in developing transistors and capacitors for modern electronics. However, instability of black phosphorus in aqueous solutions renders its utilization for real world. Herein, we report bulk black phosphorus and black phosphorus quantum dots/nitrogen deficient graphitic carbon nitride (BPQD’s/ ND-g-C3N4) nanocomposites blended with polyaniline. Black phosphorus (BP) was synthesized by liquid exfoliation method from red phosphorus using ultra-sonication process followed by dialysis to obtain black phosphorus quantum dots. ND-g-C3N4 was then added into ethanolic solution of BPQD to develop composite of the two. Resulting materials was characterized for structural/surface morphology. To evaluate the capacitive performance, polyaniline binder was used for the fabrication of electrode with the composition of 85% BPQD’s/ ND-g-C3N4 10% PANI and 5% activated carbon. Electrochemical characterization of material was done by cyclic voltammetry and electrochemical impendence spectroscopy using three electrode system using NaOH (1M). Prepared electrode showed maximum and minimum specific capacitance obtained 541.34 F g-1 at the scan rate 0.4V and 431.68 F g-1 at 1V respectively and stability of BPQD’s/ ND-g-C3N4 electrode is achieved as 1000 cycles per single electrode.Composting of BPQDs with ND-g-C3N4 and PANI resulted in good specific capacitance and remarkable cyclic stability in alkaline aqueous solution.

Publication Details

Page(s) 0-0

DOI DOI not available

Published Journal: Sixth International Conference on Sustainability in Process Industries (SPI) 19-20 Octover 2022 (Book of Abstracts), Volume: 0, Issue: 0, Year: 2022

Keywords

NDgC3N4 electrochemistry BP BPQDs composite Black phosphorus composite Stable capacitive electrode

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