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

Year: 2011

Authors: Mercatelli L., Sani E., Zaccanti G., Martelli F., Di Ninni P., Barison S., Pagura C., Agresti F., Jafrancesco D.

Autors Affiliation: National Council of Research – National Institute of Optics, Firenze, 50125, Italy;
Department of Physics and Astronomy, University of Firenze, Sesto Fiorentino, 50019, Italy;
Institute for Energetics and Interphases, National Council of Research, Padova, 35127, Italy

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.

Journal/Review: NANOSCALE RESEARCH LETTERS

Volume: 6      Pages from: 282  to: 282

More Information: The work has been partially performed under the \”Industria 2015\” funding of the Italian Ministry of Economic Development.
KeyWords: Absorption property; Carbon nanohorn; Chemical functionalization; Nanofluids; Overall efficiency; Scattered light; Scattering property; Single wall carbon nanohorn, Absorption; Carbon nanotubes; Glycols; Nanohorns; Optical properties; Solar absorbers; Suspensions (fluids); Carbon, Nanofluidics
DOI: 10.1186/1556-276X-6-282

Citations: 113
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