2016
DOI: 10.1021/acsami.6b10886
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Yolk–Shell Ni@SnO2 Composites with a Designable Interspace To Improve the Electromagnetic Wave Absorption Properties

Abstract: In this study, yolk-shell Ni@SnO composites with a designable interspace were successfully prepared by the simple acid etching hydrothermal method. The Ni@void@SnO composites were characterized by X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, and transmission electron microscopy. The results indicate that interspaces exist between the Ni cores and SnO shells. Moreover, the void can be adjusted by controlling the hydrothermal reaction… Show more

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Cited by 558 publications
(253 citation statements)
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“…Cole–Cole curves ( ϵ ′′− ϵ ′) have been plotted to further investigate the polarization process as follows [Eq. ]: true(ϵ'-ϵs+ϵ2)2+(ϵ'')2=()ϵs-ϵ22 …”
Section: Resultsmentioning
confidence: 99%
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“…Cole–Cole curves ( ϵ ′′− ϵ ′) have been plotted to further investigate the polarization process as follows [Eq. ]: true(ϵ'-ϵs+ϵ2)2+(ϵ'')2=()ϵs-ϵ22 …”
Section: Resultsmentioning
confidence: 99%
“…Cole-Cole curves (e''Àe')h ave been plotted to further investigate the polarization process as follows [Eq. (1)]: [30]…”
Section: Resultsmentioning
confidence: 99%
“…At the same time, the 3D structure greatly increases the propagation path of EM waves, causing the incident EM waves to be attenuated through zigzag reection and scattering. 44,45 Second, the residual OH À , F À and O 2À functional groups and localized defects in Ti 3 C 2 T X nanosheets act as polarized centers. 46,47 Third, there is a large amount of electron migration at the defects and interfaces between Ti 3 C 2 T X nanosheets and CF skeleton in the alternated EM environment, thereby forming a rich eld-induced microcurrent.…”
Section: Resultsmentioning
confidence: 99%
“…Generally, an ideal EM absorber should satisfy the requirements of light weight, strong absorption, wide absorption frequency range, and thin matching thickness. Depending on the attenuation mechanisms, the EM absorption materials can be mainly classified into two types: one is magnetic loss materials such as Fe [13], Co [14,15], Ni [16,17], and ferrites [1,3], while another is dielectric loss materials including CNTs [18], CuS [19], ZnO [20], and TiO 2 [21]. However, it is not facile to achieve impedance matching relying solely on dielectric loss or magnetic loss according to Z in = Z 0 (μ r /ε r ) 1/2 [22].…”
Section: Introductionmentioning
confidence: 99%