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Cover Feature: Metal‐Organic Framework Derived Hierarchical Co/C@V 2 O 3 Hollow Spheres as a Thin, Lightweight, and High‐Efficiency Electromagnetic Wave Absorber (Chem. Eur. J. 9/2019)
Author(s) -
Zhou Chenhui,
Wu Chen,
Liu Dong,
Yan Mi
Publication year - 2019
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201900125
Subject(s) - spheres , polarization (electrochemistry) , materials science , composite number , electromagnetic radiation , porosity , impedance matching , cover (algebra) , feature (linguistics) , electrical impedance , composite material , optics , physics , chemistry , mechanical engineering , engineering , linguistics , philosophy , quantum mechanics , astronomy
ZIF‐67 derived hierarchical Co/C@V 2 O 3 hollow spheres have been designed and applied as a novel electromagnetic (EM) wave absorbing material. The composite exhibits both excellent impedance matching and light weight, due to the rational combination of hollow and porous features. When the EM wave enters the hollow sphere, it acts like a black hole that traps the EM waves, or in a Tai Chi way to transform the EM energy into thermal energy via multiple mechanisms, including magnetic loss, conductive loss, and interfacial polarization. More information can be found in the Full Paper by C. Wu, M. Yan et al. on page 2234.