Carbonized Wood/Nickel Nanoparticle Composites with Oriented Channels for Enhanced Electromagnetic Interference Shielding
Source abstract
Abstract
The multiple enhancement of electromagnetic interference (EMI) shielding performance through facile operation is attractive for the future development of EMI shielding materials. Herein, composites of carbonized wood and nickel (CW/Ni) with different orientation angles are obtained by impregnation and carbonization. Benefiting from the through-pore structure, the shielding effectiveness (SE) of CW rises from 29.3 to 57.5 dB in the X-band as the orientation angle shifts from 90 to 0°. Moreover, the orientation angle of the natural wood has an influence on the impregnation results. CW/Ni-0° has the highest nickel content in the same impregnation condition, and the SE value of CW/Ni-0° is further improved to 76.4 dB in the X-band owing to an increase in internal reflection, graphitization, and magnetic loss. CW/Ni-0° achieves high SSE and SSE/t via modulation of orientation angles. This work provides an effective approach to enhance the performance of shielding materials.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies · Cellular and Composite Structures
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, P. R. China
Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming 525000, P. R. China
State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Wushan Road, Tianhe District, Guangzhou 510641, P. R. China
Funding
Guangdong Science and Technology Department · National Natural Science Foundation of China · Independent Research and Development Projects of Maoming Laboratory
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