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|Title:||Dual-functional magnetic and field emission properties of γ-Fe 2O3 coated carbon nanotubes core-shell structures|
|Source:||Loh, T.A.J., Chua, D.H.C. (2014). Dual-functional magnetic and field emission properties of γ-Fe 2O3 coated carbon nanotubes core-shell structures. ECS Journal of Solid State Science and Technology 3 (4) : M11-M17. ScholarBank@NUS Repository. https://doi.org/10.1149/2.005404jss|
|Abstract:||A γ-Fe2O3 coated carbon nanotube (CNT) core-shell structure with dual magnetic and field emission properties was successfully fabricated by a simple one-step technique. The γ-Fe 2O3 shell is deposited on vertically aligned multi-walled CNTs by chemical vapor deposition using ferrocene as the precursor at process temperatures of 200, 400 and 600°C. At 400°C, the γ-Fe 2O3 shell formed a polycrystalline coating of polygonal nanoparticles on the CNTs. Enhanced field emission performance was observed with a threshold field of 4.7 Vμm-1 compared to pristine CNTs at 5.6Vμm-1. Magnetic measurements revealed that the γ-Fe 2O3-CNT composites demonstrated ferrimagnetic behavior with high saturation magnetization of 52.3 emu/g and coercivity of 237 Oe at room temperature. © 2014 The Electrochemical Society.|
|Source Title:||ECS Journal of Solid State Science and Technology|
|Appears in Collections:||Staff Publications|
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