A novel cellulose-derived graphite carbon with abundant defects for excellent environmental adaptability and superior wideband microwave absorbents

Autor: Guangguang Guan, Jiebai Li, Xiaoqiang Li, Jun Xiang, Yangtao Zhou
Jazyk: angličtina
Rok vydání: 2025
Předmět:
Zdroj: Journal of Materiomics, Vol 11, Iss 2, Pp 100881- (2025)
Druh dokumentu: article
ISSN: 2352-8478
DOI: 10.1016/j.jmat.2024.04.007
Popis: It is still an enormous challenge to regulate microstructure of pure carbonaceous electromagnetic (EM) wave absorbents in order to gain superior wideband microwave absorption (MA) with environmentally adaptive ability. Herein, the novel pure cellulose-derived graphite carbon materials (CGC) with abundant defects were fabricated via the self-assembly strategy combined with simple carbonization for the first time. The EM and MA performance of as-prepared CGC with different carbonization temperatures were studied in detail. The minimum reflection loss of CGC was up to −46.2 dB (over 99.99% MA) at only 1.42 mm, and the maximum effective absorption bandwidth (EABmax, RL
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