Flower-like WS2 grown in nitrogen-doped CMK-3 with improved microwave absorbing performance

Flower-like WS2/N-CMK-3 hybrid materials were obtained by a facile one-step hydrothermal method. Due to the unique structure formed by the growth of WS2 petals on nitrogen-doped CMK-3 interlocking conductive networks, numerous interfaces formed, which facilitated multiple reflections and absorption of incident electromagnetic waves. Additionally, nitrogen atoms are introduced to improve the impedance matching to a large extent. The results show that the WS2/N-CMK-3 absorber achieves a maximum reflection loss of − 61.94 dB at 3.50 mm and an effective absorption bandwidth of up to 6.24 GHz at 2.40 mm has been achieved. Thus, this work opens up new possibilities for TMDs/carbon matrix composites as lightweight and broadband microwave absorber.