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Catalysing the production of multiple arm carbon octupi nanostructures

Saaverda, MS, Sims, GD, McCartney, LN, Stolojan, V, Anguita, JV, Tan, YY, Ogin, SL, Smith, PA and Silva, SRP (2012) Catalysing the production of multiple arm carbon octupi nanostructures Carbon, 50 (6). 2141 - 2146. ISSN 0008-6223

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Abstract

Octopus-like carbon nanofibres with leg diameters as small as 9 nm are reported, with a high yield over large areas, using a unique photo-thermal chemical vapour deposition system. The branched nature of these nanostructures leads to geometries ideal for increasing the surface area of contacts for many electronic and electrochemical devices. The manufacture of these structures involves a combination of a polyacrylonitrile/polysiloxane film covering the surface of cupronickel catalysts, supported on silicon. Acetylene is used as the carbon feedstock. High-resolution electron microscopy revealed a relationship between the geometry of the nanoparticles and the catalytic growth process, which can be tuned to maximise geometries (and therefore the surface area) and was obtained with a catalyst size of 125 nm. The technique proposed for growing these carbon octopi nanostructures is ideal to facilitate a new in situ transfer film process to place high-density carbon structures on secondary surfaces to produce high capacitance all-carbon contacts.

Item Type: Article
Additional Information: NOTICE: this is the author’s version of a work that was accepted for publication in Carbon. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Carbon, 50(6), May 2012, DOI 10.1016/j.carbon.2012.01.020
Divisions: Faculty of Engineering and Physical Sciences > Electronic Engineering > Advanced Technology Institute > Nano-Electronics Centre
Depositing User: Symplectic Elements
Date Deposited: 30 Nov 2012 12:29
Last Modified: 23 Sep 2013 19:50
URI: http://epubs.surrey.ac.uk/id/eprint/735945

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