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Materials (Basel). 2017 May 19;10(5). pii: E537. doi: 10.3390/ma10050537.

In Situ Production of Copper Oxide Nanoparticles in a Binary Molten Salt for Concentrated Solar Power Plant Applications.

Author information

1
School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK. m.lasfargues@outlook.com.
2
School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK. m.lasfargues@outlook.com.
3
School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK. g.stead1988@gmail.com.
4
School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK. pmmamj@leeds.ac.uk.
5
School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK. Y.Ding@bham.ac.uk.
6
School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK. d.wen@leeds.ac.uk.
7
School of Aeronautic Science and Engineering, Beihang University, Beijing 100191, China. d.wen@leeds.ac.uk.

Abstract

Seeding nanoparticles in molten salts has been shown recently as a promising way to improve their thermo-physical properties. The prospect of such technology is of interest to both academic and industrial sectors in order to enhance the specific heat capacity of molten salt. The latter is used in concentrated solar power plants as both heat transfer fluid and sensible storage. This work explores the feasibility of producing and dispersing nanoparticles with a novel one pot synthesis method. Using such a method, CuO nanoparticles were produced in situ via the decomposition of copper sulphate pentahydrate in a KNO₃-NaNO₃ binary salt. Analyses of the results suggested preferential disposition of atoms around produced nanoparticles in the molten salt. Thermal characterization of the produced nano-salt suspension indicated the dependence of the specific heat enhancement on particle morphology and distribution within the salts.

KEYWORDS:

CSP; concentrated solar power; in-situ production; molten salts; nanoparticles; solar energy; specific heat capacity

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