Donor-acceptor molecular architecture involving carbazole/pyrazine/anthraquinone units for efficient supercapacitor applications

Sumit D Ambore; Chepuri R K Rao; Sidhanath V Bhosale; Sheshanath V Bhosale

doi:10.1039/d3cc03233g

Donor-acceptor molecular architecture involving carbazole/pyrazine/anthraquinone units for efficient supercapacitor applications

Chem Commun (Camb). 2023 Aug 24;59(69):10384-10387. doi: 10.1039/d3cc03233g.

Authors

Sumit D Ambore^{1

2}, Chepuri R K Rao^{1

2}, Sidhanath V Bhosale^{1

2}, Sheshanath V Bhosale³

Affiliations

¹ Polymers and Functional Materials Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500007, Telangana, India. bhosale@iict.res.in.
² Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, Uttar Pradesh, India. ramchepuri@iict.res.in.
³ Department of Chemistry, School of Chemical Sciences, Central University of Karnataka, Kadaganchi, Kalaburagi-585367, Karnataka, India. bsheshanath@gmail.com.

PMID: 37548283
DOI: 10.1039/d3cc03233g

Abstract

A donor-acceptor composed of two 3,6-di-tert-butyl-9H-carbazoles (DTCs) and fused pyrazine (Pyz; 1)-anthraquinone (AQ; 1) was successfully synthesized. The as-fabricated DTCz-Pyz-AQ/graphite foil (GF) electrode in supercapacitor (SC) applications exhibited excellent specific capacitance (C_sp) of about 304. 37 F g^-1 and 106.0 F g^-1 at 0.5 A g^-1 current density in three electrode and symmetric two electrode configurations of SC cells, respectively, accompanied by good cycling stability. The highest energy density of the SSC cell was found to be 15.94 W h kg^-1 at 899.71 W kg^-1 power density. As a proof of concept DTCz-Pyz-AQ/GF (D-A/GF) has great potential in energy storage (ES) applications.