Journal
NANOTECHNOLOGY
Volume 28, Issue 30, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aa783f
Keywords
carbon fibre; carbon nanotube; synthesis; chemical vapour deposition; potential difference enhanced
Funding
- UK Engineering and Physical Sciences Research Council (EPSRC) [EP/P502500/1]
- EPSRC Impact Acceleration: Pathways to Impact Award [EP/K503733/1]
- Engineering and Physical Sciences Research Council [EP/K503733/1] Funding Source: researchfish
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The application of an in situ potential difference between carbon fibres and a graphite foil counter electrode (300 V, generating an electric field ca 0.3-0.7 V mu m(-1)), during the chemical vapour deposition synthesis of carbon nanotube (CNT) grafted carbon fibres, significantly improves the uniformity of growth without reducing the tensile properties of the underlying carbon fibres. Grafted CNTs with diameters 55 nm +/- 36 nm and lengths around 10 mu m were well attached to the carbon fibre surface, and were grown without the requirement for protective barrier coatings. The grafted CNTs increased the surface area to 185 m(2) g(-1) compared to the asreceived sized carbon fibre 0.24 m(2) g(-1). The approach is not restricted to batch systems and has the potential to improve CNT grafted carbon fibre production for continuous processing.
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