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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5240

Title: Carbon-Nickel oxide nanocomposites: Preparation and charecterisation
Authors: Tile, N
Roro, K
Forbes, A
Keywords: Solar absorber
C-NiO
C-NiO nanocomposites
Nanocomposite coatings
Nanotechnology
Issue Date: Jul-2011
Citation: Tile, N, Roro, K and Forbes, A. 2011. Carbon-Nickel oxide nanocomposites: Preparation and charecterisation. 56th Annual conference of South African Institute of Physics, UNISA, Pretoria, 12-15 July 2011
Series/Report no.: Workflow request;7381
Abstract: Nanocomposite materials have wide range of applications in solar energy conversion. In this work, C-NiO nanocomposite coatings are prepared using sol-gel synthesis and deposited on aluminium substrates using a spin coater. The coatings are prepared from alcoholic sols based on Ni-acetate using diethalonamine as a chelating agent and polyethylene glycol (PEG) as organic template. Sucrose is used as a carbon source. Sols with different PEG and sucrose concentrations are prepared and coated on aluminium substrates. The effect of heat temperature on the properties is also investigated. The optical and structural changes of the nanocomposite coatings are characterized by UV-Vis, FTIR, thermal emissometer, Raman, and SEM techniques. It has been shown that the solar absorption increases with increasing the heating temperature in the temperature range 300-550 °C due to the increase in carbon content in the composite material. Preliminary durability studies on these samples will also be presented.
Description: 56th Annual conference of South African Institute of Physics, UNISA, Pretoria, 12-15 July 2011
URI: http://hdl.handle.net/10204/5240
Appears in Collections:Polymers and composites
National Centre for nano-structured materials
Sustainable energy futures
Nanotechnology
Laser physics and technology
Manufacturing science and technology
General science, engineering & technology

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