The Improved Microwave Absorption Performance of the 3D Porous (Ni@NO-C)/NO-C Composite Absorber.

Microwave absorbers that are lightweight and have good stability and high efficiency have attracted much attention for their applications in many contemporary fields. In this work, a 3D porous (Ni@NO-C)/NO-C composite absorber was prepared using a wet chemistry method with Ni chains and melamine as precursors, in which NO-C (N,O-doped carbon)-encapsulated Ni particles are homogenously dispersed in the 3D porous networks of NO-C in the form of (Ni@NO-C) chains. The special microstructure of the as-prepared material is proven to be beneficial for the improvement of its microwave absorption performance.