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Hollow CoS 2 Nanobubble Prisms Derived from ZIF‐67 through Facile Two‐Step Self‐Engaged Method for Electromagnetic Wave Absorption
Author(s) -
Zeng Fanzhen,
Li Lei,
Liu Chenyu,
Lin Zhan
Publication year - 2021
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202100792
Subject(s) - materials science , one step , absorption (acoustics) , electromagnetic radiation , optics , composite material , chemical engineering , physics , engineering
Morphological structure, other than chemical composition is of great significance to design and fabricate superior electromagnetic (EM) wave absorption materials. Hollow CoS 2 nanobubble prisms with hierarchical porous structure are well preserved via a subsequent sulfuration process from hollow nanorods‐like ZIF‐67 as a precursor. The hollow CoS 2 nanobubble prisms provide advanced microwave absorbing property. With a low filler loading of 25 wt%, the minimum reflection loss of hollow CoS 2 nanobubble prisms reaches −54.9 dB at 5 GHz, while the effective absorption frequency band is 14.2 (3.8–18) GHz. Moreover, the microwave absorbing mechanism of porous architecture and chemical component is discussed systematacially. This work elaborates the importance in investigating porous architectures for microwave absorption in the possible field of future, providing an excellent example to study and develop advanced microwave absorbers.