Effect of precursors in the supercapacitor performance of g-C3N4
摘要
The present study demonstrates the synthesis of sulfur-doped 2D graphitic carbon nitride (T-CN) from thiourea as a precursor and its enhanced electrochemical properties as a supercapacitor electrode. An elaborate study has been carried out to elucidate how the structural and morphological characteristics of the material affect the electrochemical performances of the samples and subsequently their performance as a supercapacitor electrode. The results were also compared with pristine graphitic carbon nitride samples sourced from urea (U-CN). For the T-CN samples, a specific capacitance value of 566 F/g was obtained at 3 mV/s, which is an increment of more than fivefold as compared to U-CN (115 F/g). The energy density value of the T-CN sample was as high as 41 Wh/kg at a power density of 2.2 kW/kg.
Graphical abstract