MoS 2 /polyaniline/functionalized carbon cloth electrode materials for excellent supercapacitor performance.

In this study, molybdenum disulfide (MoS 2 ), polyaniline (PANI) and their composite (MoS 2 /PANI) were facilely prepared via a liquid-phase method and in situ polymerization. An MoS 2 /PANI/functionalized carbon cloth (MoS 2 /PANI/FCC) was facilely constructed by a drop-casting method. MoS 2 /PANI-10/FCC displays remarkable electrochemical performances, and its specific capacitances varied from 452.25 to 355.5 F g -1 at current densities ranging from 0.2 to 4 A g -1 , which were higher than those of MoS 2 /CC (from 56.525 to 7.5 F g -1 ) and pure PANI/CC (319.5 to 248.5 F g -1 ), respectively. More importantly, the MoS 2 -10/PANI/FCC electrode has a long cycling life, and a capacity retention of 87% was obtained after 1000 cycles at a large current density of 10 A g -1 . Moreover, the MoS 2 /PANI-10/FCC-based symmetric supercapacitor also exhibits excellent rate performance and good cycling stability. The specific capacitance based on the total mass of the two electrodes is 72.8 F g -1 at a current density of 0.2 A g -1 and the capacitance retention of 85% is obtained after 1000 cycles.