@article{Wang2026, 
author = {Ting Wang and Zhongning Tian and Xueli Qi and Jinyuan Liu and Weichen Ding and Qianqian Jia and Mingbo Liu and Haoyu Pang and Zhiqiang Cheng and Chuanhui Gao and Zhenjiang Li and Meng Zhang},
title = {Pore-architecture tailoring in tofu-derived carbon for synergistic dielectric loss and enhanced electromagnetic absorption},
year = {2026},
journal = {Nano Research},
volume = {19},
number = {3},
pages = {94908279},
keywords = {porous carbon, synergistic effect, electromagnetic wave absorption, porous carbon (PCM) sample},
url = {https://www.sciopen.com/article/10.26599/NR.2025.94908279},
doi = {10.26599/NR.2025.94908279},
abstract = {The regulation of pore structures plays a crucial role in optimizing the electromagnetic wave absorption performance of porous materials by facilitating multiple reflection/scattering effects and improving impedance matching. Among lightweight absorbers, morphable biomass-derived porous carbon has emerged as a research hotspot due to its shape-tunable morphology, adjustable porosity, low density, cost-effectiveness, and facile fabrication. In this study, tofu was employed as a precursor to prepare sponge-like tofu and porous carbon (PCM) with varying pore sizes and densities by controlling compression pressure. The results demonstrate that moderate compression pressure induces an optimized pore architecture, which effectively enhances conductive loss, polarization loss, and synergistic multiple reflection/scattering mechanisms. The optimized PCM-4K sample achieves a minimum reflection loss (RLmin) of −41.14 dB at a matching thickness of 1.3 mm, along with the broadest effective absorption bandwidth (EAB) of 4.08 GHz at 1.4 mm. This work not only presents a novel biomass-derived carbon synthesis strategy for precise pore structure engineering but also elucidates the porous-structure-mediated absorption mechanism, providing valuable insights for the design and optimization of next-generation lightweight electromagnetic wave absorbers.}
}