@article{ART003274542},
author={Wang Meng and Xutong Li and Pan Hong and Xu Lihui and Teng Yi and Fu Xueqiang and Zhang Rui and Li Qian},
title={The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={6},
pages={2895-2906},
doi={10.1007/s42823-025-00963-x}
TY - JOUR
AU - Wang Meng
AU - Xutong Li
AU - Pan Hong
AU - Xu Lihui
AU - Teng Yi
AU - Fu Xueqiang
AU - Zhang Rui
AU - Li Qian
TI - The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material
JO - Carbon Letters
PY - 2025
VL - 35
IS - 6
PB - Korean Carbon Society
SP - 2895
EP - 2906
SN - 1976-4251
AB - In this study, a composite material based on agricultural waste coconut shells was successfully developed as an efficient, lightweight, and sustainable electromagnetic wave (EMW) absorber. Specifically, coconut shells were used as the raw material, and a simple one-step activation charring process was employed to obtain coconut shell porous carbon (CSPC). ZnFe2O4 with a hollow spherical structure was then in situ grown on the surface of CSPC, resulting in a special ZnFe2O4/CSPC composite material. Due to its unique hollow structure, porous characteristics, and heterogeneous interfaces, the composite material achieved optimized impedance matching, leading to excellent EMW absorption performance. The fabricated ZnFe2O4/CSPC composite demonstrated a minimum reflection loss (RLmin) of − 37.32 dB at 10.80 GHz and an effective absorption bandwidth of 2.40 GHz at a thickness of only 2.0 mm. SEM and TEM analyses confirmed that the composite possessed a hollow and porous structure, while the BET specific surface area was measured at 133.709 m2 g⁻1. Based on the synergistic effects of ZnFe2O4 and CSPC, dielectric losses, magnetic losses, and impedance matching, the potential EMW absorption mechanisms were proposed. The ZnFe2O4/CSPC composite material prepared in this study was a novel, green, and sustainable EMW absorber.
KW - Coconut shell porous carbon;ZnFe2O4;Hollow;Electromagnetic wave absorption
DO - 10.1007/s42823-025-00963-x
ER -
Wang Meng, Xutong Li, Pan Hong, Xu Lihui, Teng Yi, Fu Xueqiang, Zhang Rui and Li Qian. (2025). The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material. Carbon Letters, 35(6), 2895-2906.
Wang Meng, Xutong Li, Pan Hong, Xu Lihui, Teng Yi, Fu Xueqiang, Zhang Rui and Li Qian. 2025, "The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material", Carbon Letters, vol.35, no.6 pp.2895-2906. Available from: doi:10.1007/s42823-025-00963-x
Wang Meng, Xutong Li, Pan Hong, Xu Lihui, Teng Yi, Fu Xueqiang, Zhang Rui, Li Qian "The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material" Carbon Letters 35.6 pp.2895-2906 (2025) : 2895.
Wang Meng, Xutong Li, Pan Hong, Xu Lihui, Teng Yi, Fu Xueqiang, Zhang Rui, Li Qian. The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material. 2025; 35(6), 2895-2906. Available from: doi:10.1007/s42823-025-00963-x
Wang Meng, Xutong Li, Pan Hong, Xu Lihui, Teng Yi, Fu Xueqiang, Zhang Rui and Li Qian. "The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material" Carbon Letters 35, no.6 (2025) : 2895-2906.doi: 10.1007/s42823-025-00963-x
Wang Meng; Xutong Li; Pan Hong; Xu Lihui; Teng Yi; Fu Xueqiang; Zhang Rui; Li Qian. The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material. Carbon Letters, 35(6), 2895-2906. doi: 10.1007/s42823-025-00963-x
Wang Meng; Xutong Li; Pan Hong; Xu Lihui; Teng Yi; Fu Xueqiang; Zhang Rui; Li Qian. The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material. Carbon Letters. 2025; 35(6) 2895-2906. doi: 10.1007/s42823-025-00963-x
Wang Meng, Xutong Li, Pan Hong, Xu Lihui, Teng Yi, Fu Xueqiang, Zhang Rui, Li Qian. The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material. 2025; 35(6), 2895-2906. Available from: doi:10.1007/s42823-025-00963-x
Wang Meng, Xutong Li, Pan Hong, Xu Lihui, Teng Yi, Fu Xueqiang, Zhang Rui and Li Qian. "The coconut shell-derived porous carbon supported hollow spherical ZnFe2O4 as an efficient electromagnetic wave absorption material" Carbon Letters 35, no.6 (2025) : 2895-2906.doi: 10.1007/s42823-025-00963-x
