Table 1.
EM absorption properties of recently reported carbon-based magnetic absorbers and S2 sample in this work
| Sample | Maximum RL value | Filler content | RL≦–10 dB | References | ||
|---|---|---|---|---|---|---|
| Dm | RLmax | Dm | fe | |||
| Fe3O4/GCs | 3.5 | − 32 | 30 | 3.5 | ~4.6 | [47] |
| Fe3O4 clusters-NG | 4.1 | − 53.6 | 30 | 1.8 | ~5 | [36] |
| WPC/MNPs-80 | 2.0 | − 47.9 | 33 | 2.0 | 4.1 | [48] |
| Co@C nanofiber | 2.4 | − 40 | 50 | 2.4 | ~2.5 | [49] |
| Porous carbon/Fe3O4@Fe | 2.0 | − 49.6 | 30 | 2.0 | 5.0 | [50] |
| Fe@NPC@CF | 2.5 | − 46.2 | 25 | 2.5 | 5.2 | [51] |
| Nanoporous carbon | 2.0 | − 42.4 | 70 | 2.0 | 1.76 | [52] |
| FeNi3/N-GN | 1.45 | − 57.2 | 50 | 1.94 | 4.2 | [53] |
| Fe3O4@NPC | 3.0 | − 65.5 | 40 | 3.0 | 4.5 | [54] |
| S2 | 2.05 | − 63 | 20 | 1.95 | 5.8 | This work |