ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Reduced graphene oxide loaded with sodium anthraquinone-2-sulfonate on functionalized carbon cloth for excellent electrochemical performance

Yan Lin, Yu Ren, and Xiaoyun Lin

School of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, China

E-mail: linxiaoyun@ncu.edu.cn

Received: 14 August 2024  Accepted: 11 December 2024

Abstract:

Reduced graphene oxide (RGO) loaded with sodium anthraquinone-2-sulfonate (AQS) was prepared using one-pot hydrothermal synthesis. The phase, composition and structure of the prepared materials were characterized by transmission electron microscope (TEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS) and powder X-ray diffraction (XRD). The AQS, RGO and AQS/RGO on functionalized carbon cloth (FCC) electrodes were established. The performance of AQS/FCC, RGO/FCC and AQS/RGO/FCC were tested by galvanostatic charge–discharge (GCD), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The specific capacitance (C_s) of AQS/FCC, RGO/FCC and AQS/RGO/FCC is 9.29, 194.8 and 402.5 F g⁻¹ at the current density (C_d) of 0.5 A g⁻¹, respectively. After 1000 cycles of charging and discharging, the capacity retention of AQS/RGO/FCC remained at 92.6%. Therefore, the AQS/RGO/FCC electrode exhibits excellent rate performance, excellent charging and discharging performance and cycling stability in supercapacitors (SCs).

Keywords: Reduced graphene oxide; Sodium anthraquinone-2-sulfonate; Functionalized carbon cloth; Electrochemical performance

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-024-03860-1

Chemical Papers 79 (3) 1375–1384 (2025)