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.