Preparation and regulation of electromagnetic parameters of Ti₃C₂Tx@Ni composite powders

Novel electromagnetic (EM) materials with adjustable EM properties are anticipated to fulfill the requirements of electronic communication, national defense, and aerospace fields. In this study, functional Ti 3 C 2 T x @Ni composite powders with adjustable Ni content were successfully prepared using a facile electroless plating strategy. The EM parameters can be regulated by controlling the Ni content in Ti 3 C 2 T x @Ni composite powders. As the Ni content increases, the values of real and imaginary parts of the complex permittivity of the Ti 3 C 2 T x @ y Ni/wax (y = 10 ~ 80) in the 2-18 GHz show a trend of initially decreasing and then increasing. The real and imaginary parts of the complex permeability of Ti 3 C 2 T x @ y Ni/wax range from 0.95 to 1.03 and −0.10 to 0.07, respectively. After introducing magnetic Ni, Ti 3 C 2 T x exhibits dielectric and magnetic losses on EM waves, with dielectric losses having a greater dissipation on the EM waves.