Nano Archive

Absorption and scattering properties of carbon nanohorn-based nanofluids for direct sunlight absorbers

Mercatelli, Luca and Sani, Elisa and Zaccanti, Giovanni and Martelli, Fabrizio and Di Ninni, Paola and Barison, Simona and Pagura, Cesare and Agresti, Filippo and Jafrancesco, David (2011) Absorption and scattering properties of carbon nanohorn-based nanofluids for direct sunlight absorbers. Nanoscale Research Letters, 6 (1). pp. 1-9.

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Abstract

In the present work, we investigated the scattering and spectrally resolved absorption properties of nanofluids consisting in aqueous and glycol suspensions of single-wall carbon nanohorns. The characteristics of these nanofluids were evaluated in view of their use as sunlight absorber fluids in a solar device. The observed nanoparticle-induced differences in optical properties appeared promising, leading to a considerably higher sunlight absorption with respect to the pure base fluids. Scattered light was found to be not more than about 5% with respect to the total attenuation of light. Both these effects, together with the possible chemical functionalization of carbon nanohorns, make this new kind of nanofluids very interesting for increasing the overall efficiency of the sunlight exploiting device.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:10904
Deposited By:JNCASR
Deposited On:18 Oct 2011 08:47
Last Modified:18 Oct 2011 08:47

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