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In‐Situ Co‐Arc Discharge Synthesis of Fe 3 O 4 /SWCNT Composites for Highly Effective Microwave Absorption
Author(s) -
Kuchi Rambabu,
Nguyen Hieu M.,
Dongquoc Viet,
Van Phuoc Cao,
Surabhi Srivathsava,
Yoon SoonGil,
Kim Dojin,
Jeong JongRyul
Publication year - 2018
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201700989
Subject(s) - materials science , microwave , annealing (glass) , carbon nanotube , composite number , nanoparticle , electric arc , composite material , in situ , reflection loss , nanotechnology , electrode , chemistry , physics , organic chemistry , quantum mechanics
Fe 3 O 4 nanoparticles dispersed on single‐walled carbon nanotube (SWCNT) composites are synthesized through a simple in‐situ co‐arc discharge process followed by an annealing process. A well‐integrated Fe 3 O 4 /SWCNT composite exhibiting the strong microwave absorption (MA, −36.9 dB at 10.5 GHz) and a wide effective bandwidth (5.5 GHz) is obtained by controlling the annealing conditions. The high effective MA performance of this composite was ascribed to the well integration of magnetic nanoparticles (Fe 3 O 4 ) on the SWCNT, creating a synergetic effect. This work demonstrates an economical approach to produce Fe 3 O 4 /SWCNT composites with good MA performance.