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

Facile hydrothermally synthesized PbSnS 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 PbSnS. The as-prepared nanosheets exhibited superior capacitance (678.8 F g at 50 mV s) and a long cycle life (95.5% capacitance retention after 100 000 cycles at 5 A g).