Prune-like MoS₂/CoS/GNs composites: A potential ultra-thin wave absorber

Based on the pristine CoS/GNs conducted by our research group, a novel Prune-like MoS₂/CoS/GNs composite absorbing material was modulated by further hydrothermal method. Herein, the design of prune-like tripropellant MoS₂/CoS/GNs complex is presented. The introduction of MoS₂ hugely broadens the effective absorption bandwidth (less than −10 dB) relative to pure CoS/GNs, and also dramatically elavates the absorption capacity. This can be attributed to the construction of the conductive network and Complex morphology regulation caused by the addition of MoS₂ phase, which is conducive to the transmission of electrons and the conduction of micro-current, thus enhancing the conductive loss. Accordingly, the massively surge in heterogeneous interfaces induced by the variation of the micro-morphology also contributed to the upgradation of the wave absorption performance. The optimized ternary sample exhibited a minimum reflection loss of − 54 dB, also achieved a wide band-width of 4.72 GHz at only 1.5 mm. This work is expected to provide a feasible scheme for engineering novel potential efficient and wave absorbers.