Scattering and absorption properties of carbon nanohorn-based nanofluids for solar energy applications
Authors: Mercatelli L., Sani E., Fontani D., Zaccanti G., Martelli F., Di Ninni P.
Autors Affiliation: CNR – National Institute of Optics, Firenze, Italy;
Dept. Physics and Astronomy, University of Firenze, Sesto Fiorentino, Italy
Abstract: In this work we investigated the scattering and absorption properties of nanofluids consisting in aqueous suspensions of single wall carbon nanohorns. The characteristics of these nanofluids were evaluated in order to use them as direct sunlight absorber fluids in solar devices. The investigation was carried our for nanohorns of different morphologies and for suspensions prepared with different amounts of surfactant. The differences in optical properties induced by carbon nanoparticles compared to those of pure water lead to a considerably higher sunlight absorption with respect to the pure base fluid. Scattered light over the total attenuation of light was found to be nearly negligible at NIR wavelengths. 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. [DOI: 10.2971/jeos.2011.11025]
Journal/Review: JOURNAL OF THE EUROPEAN OPTICAL SOCIETY-RAPID PUBLICATIONS
Volume: 6 Pages from: 11025 to: 11025
KeyWords: Carbon nanotubes; Light scattering; Nanohorns; Optical properties; Solar absorbers; Solar energy; Surface active agents; Suspensions (fluids); Water absorption, Aqueous suspensions; Carbon nano particles; Carbon nanohorn; Chemical functionalization; Nano-fluid; Nanofluids; NIR wavelength; Optical scattering; Overall efficiency; Pure water; Scattered light; Scattering and absorption; Single wall carbon nanohorn; Solar energy applications, NanofluidicsDOI: 10.2971/jeos.2011.11025Citations: 16data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2019-09-15References taken from IsiWeb of Knowledge: (subscribers only)Connecting to view paper tab on IsiWeb: Click hereConnecting to view citations from IsiWeb: Click here