In-situ growth of mycelium-bamboo heterogeneous interfaces: Biofabricated porous carbon for efficient electromagnetic interference shielding and Joule heating

IF 11.6 2区材料科学 Q1 CHEMISTRY, PHYSICAL

Carbon Pub Date : 2025-10-21 DOI:10.1016/j.carbon.2025.120960

Chenchen Wang , Zijie Zhong , Chuanshuang Hu , Junda Yang , Jiangtao Xu , Xiwei Xu , Jiayi Zhong , Weiwei Zhang , Xiuyi Lin

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Abstract

Electric vehicle (EV) compartments are challenged by both the risk of high-power system electromagnetic wave (EMW) exposure and the need for efficient thermal management. To address this, biofabricated porous carbon derived from renewable biomass bamboo and Ganoderma sessile fungi was synthesized via an energy-efficient, solvent-free biological process for multifunctional electromagnetic interference (EMI) shielding and seat heating. The strategy utilized in-situ mycelial growth within bamboo substrates followed by carbonization, eliminating fossil-derived conductive fillers and associated dispersion issues. By controlling mycelial growth time (0–20 days), the heterogeneous interfaces and pore architecture of the MBCs were dynamically regulated. The optimized MBCs demonstrated enhanced interfacial polarization and conductive loss, resulting in a 76.5% improvement in absorption effectiveness (SE_A) compared to pristine BC. The total shielding effectiveness reached 45.12 dB, representing a 47.5% enhancement over pristine BC, offering improved protection against cabin EMWs. In addition, the optimized interconnecting conductive network allows for excellent electro-thermal performance, with saturation temperatures of up to 137.8 °C at a low applied voltage of 2.0 V. This demonstrates significant potential for developing energy-efficient, responsive seat heating in EVs. This biomass-derived, solvent-free approach provides a sustainable pathway for developing energy-efficient EV cabin materials with dual EMI protection and thermal management capabilities.

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菌丝-竹非均相界面的原位生长：用于高效电磁干扰屏蔽和焦耳加热的生物制备多孔碳

电动汽车（EV）车厢面临着大功率系统电磁波（EMW）暴露风险和高效热管理需求的挑战。为了解决这一问题，通过节能、无溶剂的生物工艺，从可再生生物质竹子和灵芝根部真菌中合成了生物制造多孔碳，用于多功能电磁干扰（EMI）屏蔽和座椅加热。该策略利用竹子基质内的原位菌丝体生长，然后进行碳化，消除化石来源的导电填料和相关的分散问题。通过控制菌丝生长时间（0 ~ 20 d），可以动态调节MBCs的非均质界面和孔隙结构。优化后的MBCs表现出增强的界面极化和导电损耗，与原始BC相比，吸收效率（SEA）提高了76.5%。总屏蔽效率达到45.12 dB，比原始BC提高了47.5%，提高了对舱室emw的保护。此外，优化的互连导电网络具有优异的电热性能，在2.0 V的低施加电压下饱和温度可达137.8°C。这显示了开发节能、响应式电动汽车座椅加热系统的巨大潜力。这种生物质衍生的无溶剂方法为开发具有双重电磁干扰保护和热管理能力的节能电动汽车客舱材料提供了一条可持续的途径。

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来源期刊

Carbon 工程技术-材料科学：综合

CiteScore

20.80

自引率

7.30%

发文量

审稿时长

23 days

期刊介绍： The journal Carbon is an international multidisciplinary forum for communicating scientific advances in the field of carbon materials. It reports new findings related to the formation, structure, properties, behaviors, and technological applications of carbons. Carbons are a broad class of ordered or disordered solid phases composed primarily of elemental carbon, including but not limited to carbon black, carbon fibers and filaments, carbon nanotubes, diamond and diamond-like carbon, fullerenes, glassy carbon, graphite, graphene, graphene-oxide, porous carbons, pyrolytic carbon, and other sp2 and non-sp2 hybridized carbon systems. Carbon is the companion title to the open access journal Carbon Trends. Relevant application areas for carbon materials include biology and medicine, catalysis, electronic, optoelectronic, spintronic, high-frequency, and photonic devices, energy storage and conversion systems, environmental applications and water treatment, smart materials and systems, and structural and thermal applications.