首页|Construction of SnO2 nanoparticle cluster@PANI core-shell microspheres for efficient X-band electromagnetic wave absorption

Construction of SnO2 nanoparticle cluster@PANI core-shell microspheres for efficient X-band electromagnetic wave absorption

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  • NSTL
  • Elsevier
Superior electromagnetic (EM) wave absorption properties in 8.2-12.4 GHz (X-band) can be obtained via the effective combination of polyaniline (PANI) and SnO2 nanoparticle cluster. In this work, SnO2 nanoparticle cluster@PANI (SnO2@PANI) core-shell microspheres were firstly fabricated via a hydrothermal process followed by in-situ polymerization, and the EM wave absorption properties of SnO2@PANI coreshell microspheres in X band were studied. The related structure and morphology analyses indicated SnO2@ PANI core-shell microspheres were successfully synthesized with PANI coated on the surface of SnO2 nanoparticle cluster. The minimum reflection loss (RLmin) of - 69.1 dB (thickness of 2.78 mm) and effective absorption bandwidth (EAB) covering the whole X-band (when the thickness was from 2.5 to 3.1 mm) was achieved. Remarkable EM wave absorption properties of SnO2@PANI core-shell microspheres were mainly attributed to the outstanding impedance matching characteristic and dielectric loss capability (conduction loss, interfacial polarization loss and dipole polarization loss).

SnO 2 @PANI core-shell microspheresNanoparticle clusterDielectric lossEM wave absorption propertiesFLEXIBLE PET SUBSTRATEMICROWAVE-ABSORPTIONCARBON NANOTUBEFE3O4 NANOPARTICLESHOLLOW SPHERESPOLYANILINENANOCOMPOSITESTEMPERATUREPERFORMANCECOMPOSITES

Zhao, Jia、Li, Ming、Gao, Xiaogang

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Bohai Univ

Jishou Univ

Northwestern Polytech Univ

2022

10.1016/j.jallcom.2022.165439

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
年,卷(期)：2022.915
  • 16
  • 60