Heterointerface Engineering of β-Chitin/Carbon Nano-Onions/Ni-P Composites with Boosted Maxwell-Wagner-Sillars Effect for Highly Efficient Electromagnetic Wave Response and Thermal Management

Fei Pan; Lei Cai; Yuyang Shi; Yanyan Dong; Xiaojie Zhu; Jie Cheng; Haojie Jiang; Xiao Wang; Yifeng Jiang; Wei Lu

doi:10.1007/s40820-022-00804-w

Heterointerface Engineering of β-Chitin/Carbon Nano-Onions/Ni-P Composites with Boosted Maxwell-Wagner-Sillars Effect for Highly Efficient Electromagnetic Wave Response and Thermal Management

Nanomicro Lett. 2022 Mar 29;14(1):85. doi: 10.1007/s40820-022-00804-w.

Authors

Fei Pan¹, Lei Cai¹, Yuyang Shi¹, Yanyan Dong¹, Xiaojie Zhu¹, Jie Cheng¹, Haojie Jiang¹, Xiao Wang¹, Yifeng Jiang², Wei Lu³

Affiliations

¹ Shanghai Key Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China.
² School of Materials Science and Engineering, University of New South Wales, Sydney, 2052, Australia.
³ Shanghai Key Laboratory of D&A for Metal-Functional Materials, School of Materials Science & Engineering, Tongji University, Shanghai, 201804, People's Republic of China. weilu@tongji.edu.cn.

Abstract

The rational construction of microstructure and composition with enhanced Maxwell-Wagner-Sillars effect (MWSE) is still a challenging direction for reinforcing electromagnetic wave (EMW) absorption performance, and the related EMW attenuation mechanism has rarely been elucidated. Herein, MWSE boosted β-chitin/carbon nano-onions/Ni-P composites is prepared according to the heterointerface engineering strategy via facile layer-by-layer electrostatic assembly and electroless plating techniques. The heterogeneous interface is reinforced from the aspect of porous skeleton, nanomaterials and multilayer construction. The composites exhibit competitive EMW response mechanism between the conductive loss and the polarization/magnetic loss, as describing like the story of "The Hare and the Tortoise". As a result, the composites not only achieve a minimum reflection loss (RL_min) of - 50.83 dB and an effective bandwidth of 6.8 GHz, but also present remarkable EMW interference shielding effectiveness of 66.66 dB. In addition, diverse functions such as good thermal insulation, infrared shielding and photothermal performance were also achieved in the hybrid composites as a result of intrinsic morphology and chemicophysics properties. Therefore, we believe that the boosted MWSE open up a novel orientation toward developing multifunctional composites with high-efficient EMW response and thermal management.

Keywords: Electromagnetic interference shielding; Electromagnetic wave absorption; Nano onion carbon; Photothermal; β-chitin.