Journal of Materials Chemistry C Cover Design Service (BaZrxFe12−xO19/Fe3O4/BaZrO3)

Journal of Materials Chemistry C

21 Aug 2021

A novel and facile route for the in situ formation of composites with dual coupling interactions for considerable millimeter wave absorption performance

Chuyang Liu,^*a Tao Jiang,^a Tian Gao,^a Guangxian Xia,^a Yufan Cao,^a Gang Fang,^a Kangsen Peng,^a Yanting Zhang,^a Yujing Zhang^*bc and Kongjun Zhu^a

10.1039/D1TC03398K

In this work, by delicately exploiting the reducibility of graphene at high temperatures, the BaZrxFe12−xO19/Fe3O4/BaZrO3 composite was successfully prepared in situ by a hydrothermal process combined with a subsequent heat treatment at 600 °C. The two integrable couplings provide good impedance matching and attenuation characteristics for the material system, making it reach a considerable millimeter wave absorption performance around an atmospheric window of 35 GHz with a broad bandwidth of >7.36 GHz (32.64–40.00+ GHz) and a strong RL of −25.4 dB under an extremely thin thickness of 1.00 mm. The strategy provides a novel and facile pathway to design outstanding millimeter wave absorbers.