Fabrication of carbon nano-tubes decorated with ultra fine superparamagnetic nano-particles under continuous flow conditions

Suk Fun Chin; K. Swaminathan Iyer; Colin L. Raston

doi:10.1039/B716195F

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Lab on a Chip

Issue 3, 2008

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Fabrication of carbon nano-tubes decorated with ultra fine superparamagnetic nano-particles under continuous flow conditions

Suk Fun Chin , K. Swaminathan Iyer and Colin L. Raston

Lab Chip, 2008, 8, 439-442

DOI: 10.1039/B716195F
Received 19 Oct 2007, Accepted 03 Jan 2008
First published on the web 31 Jan 2008

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Abstract
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Ultra fine (2–3 nm) magnetite (Fe₃O₄) nano-particles are uniformly deposited on single-walled carbon nano-tubes (SWCNTs) pre-functionalised with carboxylic acid groups using microwave radiation. The deposition process involves chemical precipitation associated with continuous flow spinning disc processing (SDP), as a rapid, environmentally friendly approach which is readily scalable for large scale synthesis. The resulting decorated SWCNTs are superparamagnetic with specific saturated magnetization of 30 emu g⁻¹.

Supplementary Info

Experimental details of Fe ₃O ₄ synthesis using SDP, TEM images and magnetization curve of Fe ₃O ₄
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Fabrication of carbon nano-tubes decorated with ultra fine superparamagnetic nano-particles under continuous flow conditions

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