Synthetic method, growth mechanism and electrochemical properties of PbSnS2 nanosheets for supercapacitors

Abstract

Facile hydrothermally synthesized PbSnS₂ nanosheets with various morphologies were developed to obtain high performance electrode materials for supercapacitors. A precipitation–dissolution mechanism was proposed to demonstrate the growth process of PbSnS₂. The as-prepared nanosheets exhibited superior capacitance (678.8 F g⁻¹ at 50 mV s⁻¹) and a long cycle life (95.5% capacitance retention after 100 000 cycles at 5 A g⁻¹).