Improved Asymmetric Supercapacitors Using a Novel Synthesis of Organized FeS/SnS2 Nanostructure Effective Cathode Material
摘要
The Sn-S system’s special qualities make it a highly sensitive nanomaterial for creating supercapacitors with improved performance. Simple solvothermal and ball milling techniques were used to create the carnation flower-like SnS2 and nanoplate-like FeS and their composite FeS/SnS2. FeS was added to the virgin SnS2 to increase the conductivity of the FeS/SnS2 composite. FeS/SnS2 demonstrated strong supercapacitance performance when compared to the pure SnS2 carnation flower-like composite. Due to the rapid electronic transports and volume changes that occur during the development of FeS/SnS2 heterostructures, FeS/SnS2 exhibits superior electrochemical performance comparable to that of pure SnS2. The fabricated pure sample SnS2 electrode exhibited a specific capacitance of 117.6 F g−1 at 1 A g−1, and the electrochemical performance of the composite FeS/SnS2 electrode demonstrated an increased specific capacitance value of 323.5 F g−1 and showed outstanding cycling stability of 92% retention even after 10,000 cycles at 5 A g−1. According to the obtained results, FeS/SnS2 is suitable for use as a novel electroactive source in supercapacitor devices to provide stable energy storage applications and improved performance.
Graphical Abstract