Facile synthesis and enhanced electrochemical properties of reduced graphene oxide/MoS2/polyaniline ternary compositesElectronic supplementary information (ESI) available: CV curves of MoS2/PANI composites tested in 1 M H2SO4 electrolyte at a scan rate of 100 mV s−1 and charge-discharge curves of MoS2/PANI composites at a current density of 1 A g−1, CV curves and charge-discharge curves of the symmetric cell of rGEO/MoS2/PANI(III) composites. See DOI: 10.1039/c7dt01170a

In this study, ternary composites of reduced graphene oxide/molybdenum disulfide/polyaniline (rGEO/MoS 2 /PANI) were prepared via a two-stage facile synthesis including a hydrothermal reaction and polymerization at room temperature which makes the materials much easier for industrialization. The doping of reduced graphene oxide (rGEO) decreases the aggregation of MoS 2 and enhances the electronic conductivities of MoS 2 , thus exhibiting better capacitance properties (531 F g −1 at 1 A g −1 ) and cycling stabilities (86.7% retained capacitance over 3000 cycles at 1 A g −1 ) of ternary composites than a uniform material (MoS 2 ) or binary materials (MoS 2 /PANI). The combined effects between the three components make the composites obtain both pseudocapacitance and double-layer capacitance, which can be used to explain the improvement of electrochemical performances. Ternary composites of reduced graphene oxide/molybdenum disulfide/polyaniline with superior electrochemical performances were prepared via a two-stage facile synthesis.