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. 2016 Jan 20;28(3):486-90.
doi: 10.1002/adma.201503149. Epub 2015 Nov 20.

CoNi@SiO2 @TiO2 and CoNi@Air@TiO2 Microspheres with Strong Wideband Microwave Absorption

Qinghe Liu  1 , Qi Cao  1 , Han Bi  1 , Chongyun Liang  1 , Kaiping Yuan  1 , Wen She  1 , Yongji Yang  2 , Renchao Che  1
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CoNi@SiO2 @TiO2 and CoNi@Air@TiO2 Microspheres with Strong Wideband Microwave Absorption

Qinghe Liu et al. Adv Mater. .

Abstract

The synthesis of CoNi@SiO2 @TiO2 core-shell and CoNi@Air@TiO2 yolk-shell microspheres is reported for the first time. Owing to the magnetic-dielectric synergistic effect, the obtained CoNi@SiO2 @TiO2 microspheres exhibit outstanding microwave absorption performance with a maximum reflection loss of -58.2 dB and wide bandwidth of 8.1 GHz (8.0-16.1 GHz, < -10 dB).

Keywords: core-shell; microspheres; microwave absorption; yolk-shell.

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