Hierarchical dandelion-like CoS₂ hollow microspheres: self-assembly and controllable microwave absorption performance

Abstract

The CoS2 hollow microspheres were synthesized by solvothermal–hydrothermal etching and in situ vulcanization process. When the filling is 25 wt%, the RLmin at 3.3 mm is −47.3 dB and the maximum EAB at 3.2 mm is 9.0 GHz.