TY  - JOUR
AU  - liu, Zhilong
AU  - Wang, Lihong
AU  - Zhao, Yunmin
AU  - Ren, Jianxin
AU  - Wang, Haojin
AU  - Hu, Jianqiao
AU  - Guan, Hongtao
PY  - 2025
TI  - Environmental adaptability and efficient electromagnetic wave protection of C/Co aerogels by anchoring Co to biomass carbon via the high-temperature induced morphological transformation of ZIF-67
JO  - Nano Research
SN  - 1998-0124
SP  - 94907581
VL  - 18
IS  - 8
AB  - Biomass-derived carbon aerogels have emerged as promising electromagnetic protection materials due to their ultralight, porous, and eco-friendly properties, yet achieving high performance with environmental durability remains challenging. Employing an electromagnetic synergistic strategy, this work successfully fabricated a lotus seedpod-inspired carbon-based aerogel composite (SPCA@Co) using shaddock peel biomass, where magnetic Co components were introduced via zeolitic imidazolate framework (ZIF)-67. The material’s natural hierarchical porous structure and Co nanoparticle-anchored heterogeneous interfaces optimize impedance matching by regulating conductivity, polarization, and magnetic loss, yielding exceptional electromagnetic protection performance: −52.5 dB minimum reflection loss (RLmin) of 4.52 GHz effective absorption bandwidth (EAB) at 1.4 mm thickness, and 76 dB shielding efficiency. Simultaneously, SPCA@Co exhibits multifunctionality in complex environments, integrating thermal insulation, hydrophobicity, mechanical robustness, and stability under acid rain/weathering, with adaptability validated by radar cross-section simulations. This work provides a sustainable strategy for designing high-performance, multifunctional electromagnetic protections using biomass resources.
UR  - https://doi.org/10.26599/NR.2025.94907581
DO  - 10.26599/NR.2025.94907581