One-Step Solvothermal Synthesis by Ethylene Glycol to Produce N-rGO for Supercapacitor Applications
Mohammad Obaidur Rahman,
Nursyarizal Bin Mohd Nor,
Narinderjit Singh Sawaran Singh,
Surajudeen Sikiru,
John Ojur Dennis,
Muhammad Fadhlullah bin Abd. Shukur,
Muhammad Junaid,
Ghulam E. Mustafa Abro,
Muhammad Aadil Siddiqui,
Md Al-Amin
Affiliations
Mohammad Obaidur Rahman
Department of Electrical & Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
Nursyarizal Bin Mohd Nor
Department of Electrical & Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
Narinderjit Singh Sawaran Singh
Faculty of Data Science and Information Technology (FDSIT), INTI International University, Persiaran Perdana BBN, Putra Nilai, Nilai 71800, Negeri Sembilan, Malaysia
Surajudeen Sikiru
Centre for Subsurface Imaging, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
John Ojur Dennis
Department of Fundamental & Applied Science, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
Muhammad Fadhlullah bin Abd. Shukur
Department of Fundamental & Applied Science, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
Muhammad Junaid
Department of Electrical & Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
Ghulam E. Mustafa Abro
Department of Electrical & Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
Muhammad Aadil Siddiqui
Department of Electrical & Electronic Engineering, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Perak, Malaysia
Md Al-Amin
The University of Queensland, St Lucia, QLD 4072, Australia
Graphene and its derivatives have emerged as peerless electrode materials for energy storage applications due to their exclusive electroactive properties such as high chemical stability, wettability, high electrical conductivity, and high specific surface area. However, electrodes from graphene-based composites are still facing some substantial challenges to meet current energy demands. Here, we applied one-pot facile solvothermal synthesis to produce nitrogen-doped reduced graphene oxide (N-rGO) nanoparticles using an organic solvent, ethylene glycol (EG), and introduced its application in supercapacitors. Electrochemical analysis was conducted to assess the performance using a multi-channel electrochemical workstation. The N-rGO-based electrode demonstrates the highest specific capacitance of 420 F g−1 at 1 A g−1 current density in 3 M KOH electrolyte with the value of energy (28.60 Whkg−1) and power (460 Wkg−1) densities. Furthermore, a high capacitance retention of 98.5% after 3000 charge/discharge cycles was recorded at 10 A g−1. This one-pot facile solvothermal synthetic process is expected to be an efficient technique to design electrodes rationally for next-generation supercapacitors.
