Microwave absorption properties of magnetite multi-granule nanocluster-multiwall carbon nanotube composites

Boo Hyun An, Bum Chul Park, Amarsingh Bhabu Kanagaraj, Prerna Chaturvedi, Hamad Al Yassi, Jung Rae Park, Young-geun Kim, Jong Eun Ryu, Mihai Sanduleanu, Daniel Sunghoi Choi

Research output: Contribution to journalArticle

Abstract

Fe3O4 multi-granule nanocluster-multiwall carbon nanotube composites for microwave absorbing applications are fabricated by the surface-engineered tape-casting method. The multi-granule nanoclusters are synthesized by a modified polyol hydrothermal method and characterized by transmission electron microscopy, X-ray diffraction and vibrating sample magnetometer. The complex permittivity and permeability of the composites with different granule size of nanoclusters are characterized in X-band range with the reflection method. The absorption peak of the composites are shifted from 11.1GHz to 11.51GHz as granule size increased from 18nm to 35nm.

Original languageEnglish
JournalFunctional Materials Letters
DOIs
Publication statusAccepted/In press - 2018 Jan 1

Keywords

  • carbon nanotube
  • ferrite
  • Microwave absorption
  • reflection loss

ASJC Scopus subject areas

  • Materials Science(all)

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    An, B. H., Park, B. C., Kanagaraj, A. B., Chaturvedi, P., Al Yassi, H., Park, J. R., Kim, Y., Ryu, J. E., Sanduleanu, M., & Choi, D. S. (Accepted/In press). Microwave absorption properties of magnetite multi-granule nanocluster-multiwall carbon nanotube composites. Functional Materials Letters. https://doi.org/10.1142/S1793604719500115