fig3

Figure 3. Analysis of the microwave absorption performance of M-HHTP; (A1-A3) are NCH1; (B1-B3) are NCH2; (C1-C3) are NCH3 3D and 2D RL value diagrams. M-HHTP: Metal-hexahydroxytriphenylene (M = Ni, Co); NCH1: nickel-cobalt hybrid material (Ni²⁺:Co²⁺ = 1:3); NCH2: nickel-cobalt hybrid material (Ni²⁺:Co²⁺ = 3:1); NCH3: nickel-cobalt hybrid material (Ni²⁺:Co²⁺ = 1:1); 3D: three-dimensional; 2D: two-dimensional; RL: reflection loss; EAB_max: maximum effective absorption bandwidth; RL_min: minimum reflection loss.