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Browsing by Author "Cele, NP"

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Carbon nanotubes based nafion composite membranes for fuel cell applications

Author: Cele, NP ; Ray, SS ; Kesavan Pillai, Sreejarani ; Ndwandwe, M ; Nonjola, S ; Sikhwivhilu, L ; Mathe, Mahlanyane K Date: 2009 Carbon nanotubes (CNTs) containing Nafion composite membranes were prepared via melt-blending at 250 °C. Using three different types of CNTs such as pure CNTs (pCNTs), oxidised CNTs (oCNTs) and amine functionalised CNTs (fCNTs); the effect ... Read more
Chemical vapour deposition of carbon nanotubes

Author: Arendse, CJ ; Malgas, GF ; Cummings, FR ; Cele, NP Date: Feb 2006 Carbon nanotubes (CNTs) have proven to show great promise in a wide variety of applications such as fabrication of strong composites, nano-scale electronic devices, electrochemical devices, power devices, to name a few. This is largely due ... Read more
Effect of mixture ratios and nitrogen carrier gas flow rates on the morphology of carbon nanotube structures grown by CVD

Author: Malgas, GF ; Arendse, CJ ; Cele, NP ; Cummings, FR Date: Feb 2008 This paper reports on the growth of carbon nanotubes (CNTs) by thermal Chemical Vapour Deposition (CVD) and investigates the effects of nitrogen carrier gas flow rates and mixture ratios on the morphology of CNTs on a silicon substrate by ... Read more
Effect of multiwalled carbon nanotube loading on the properties of Nafion(R) membranes

Author: Cele, NP ; Ray, SS Date: Oct 2015 The dispersion of carbon nanotubes is one of the problems in the application of polymer nanocomposites. In this study, the effect of chemical functionalization of the carbon nanotube surface on the dispersion of the tubes within a polymer is ... Read more
Nafion titania nanotubes nanocomposite electrolytes for high-temperature direct methanol fuel cells

Author: Cele, NP ; Ray, Suprakas S ; Sikhwivhilu, L Date: 2012 Nafion-based nanocomposite membranes containing various amounts of titania nanotubes (TNTs) as an inorganic filler have been prepared using melt-mixing method and have been investigated for proton exchange membrane applications. The one-dimensional ... Read more
Nafion-based nanocomposite membranes for fuel cells

Author: Cele, NP ; Ray, SS ; Kesavan Pillai, Sreejarani ; Arendse, C ; Ndwandwe, N Date: Nov 2008 Nafion nanocomposites were prepared with pure multiwalled carbon nanotubes (PMWCNTs), oxidised MWCNTs (OMWCNTs) and functionalised MWCNTs (FMWCNTs) as fillers, to investigate the effect of multiwalled carbon nanotubes on thermal stability, ... Read more

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Browsing by Author "Cele, NP"

Browsing by Author "Cele, NP"

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