Fabrication and microwave absorption of multiwalled carbon nanotubes anchored with CoS nanoplates

摘要

A nanoarchitecture of multiwalled carbon nanotubes (MWCNTs) anchored with CoS nanoplates (MWCNTs/CoS) has been achieved via a simple and effective solvothermal approach. And such heterostructures were initially investigated as microwave absorbers, on which the corresponding influence of layer thickness, filler loading concentration and different morphologies was systematically studied. In this work, with the introduction of CoS nanoplates into the carbon nanotubes, a substantially enhanced microwave absorption ability was observed for MWCNTs/CoS, endowed with an optimal reflection loss value of -56.1 dB at 6.6 GHz. The excellent electromagnetic performance could be attributed to the good combination of the hybrid structure and enhanced interface polarization. It is envisioned that MWCNTs/CoS nanomaterials would be highly promising candidate as advanced microwave absorber.