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Co<sup>2+</sup>/Co<sup>3+</sup>ratio dependence of electromagnetic wave absorption in hierarchical NiCo<sub>2</sub>O<sub>4</sub>–CoNiO<sub>2</sub>hybrids

Journal of Materials Chemistry C · 2015 · Vol. 3(29) · pp. 7677–7690
Hongjing WuGuanglei WuYanyan RenLe YangLiuding WangXinghua Li

Abstract

Amorphous hierarchical NiCo<sub>2</sub>O<sub>4</sub>–CoNiO<sub>2</sub>hybrids have been successfully fabricated<italic>via</italic>a facile one-pot hydrothermal route, followed by morphologic conversion into urchin-like structured NiCo<sub>2</sub>O<sub>4</sub>–CoNiO<sub>2</sub>nanorods and irregular-shaped hierarchical NiCo<sub>2</sub>O<sub>4</sub>–CoNiO<sub>2</sub>polyhedral nanocrystals through air-annealing treatment at 450 °C and 650 °C, respectively.

Electromagnetic wave absorption materialsMagnetic Properties and Synthesis of FerritesAdvanced Antenna and Metasurface TechnologiesMaterials scienceNanorodAnnealing (glass)Amorphous solidHydrothermal circulationX-ray crystallographyCrystallographyAnalytical Chemistry (journal)NanotechnologyPhysics

Funding

  • National Natural Science Foundation of China
  • China Postdoctoral Science Foundation
Citations
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