In situ construction of biomass derived 3D carbon framework for efficient electromagnetic interference shielding and Joule heating performance

作者：Hao, Xixun; Li, Di; Peng, Xinwen; Lan, Wu^*; Liu, Chuanfu^*

来源：Chemical Engineering Journal, 2024, 479: 147681.

DOI：10.1016/j.cej.2023.147681

• Carbonized wood
• Electromagnetic shielding
• Joule heating performance
• Carbon nanotube
• Nitrogen -doped

The rapid development of highly integrated electronic devices urgently requires multifunctional materials with outstanding electromagnetic interference (EMI) shielding performance. Herein, an integrated three-dimensional (3D) carbon framework is fabricated by encapsulating nickel nanoparticles into N-doped carbon nanotubes in situ grown in carbonized wood (Ni@NCNT-CW). The obtained Ni@NCNT-CW possesses ultra-efficient EMI shielding performance of 83.24 dB at X-band because of the synergetic interaction of the integrated hierar-chically porous structure and consecutively conductive path. Simultaneously, the Ni@NCNT-CW exhibits self -extinguishing and excellent joule heating performance. This work highlights the great potentials of this facile strategy for in-situ preparation of cost-effectively integrated carbon framework based on natural wood for effi-cient EMI shielding and electrothermal conversion.

• 单位
  浙江大学