Enhanced electromagnetic wave absorption performance of silane coupling agent KH550@Fe3O4 hollow nanospheres/graphene composites

• Published in: Journal of materials chemistry. C, Materials for optical and electronic devices Vol. 8; no. 8; pp. 2913 - 2926
• Main Authors: Shu, Xiangfeng, Ren, Hengdong, Jiang, Yu, Zhou, Jun, Wang, Yueqin, Wang, Yanfen, Liu, Yin, Won-Chun, Oh
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 01.01.2020
• Subjects: Absorption; Adhesion; Bonding agents; Composite materials; Coupling agents; Electromagnetic radiation; Graphene; Hydrophobicity; Impedance matching; Iron oxides; Nanoparticles; Nanospheres; Substrates

Monodisperse Fe3O4 hollow nanospheres with two sizes of ∼300 nm and ∼400 nm were modified by a silane coupling agent KH550 and then bonded with rGO via a hydrothermal route to obtain the composites. The main challenges in the preparation of Fe3O4/rGO composites are the dispersion of magnetic nanopar...