A novel non-selective coating material for solar thermal potential application formed by reaction between sol-gel titania and copper manganese spinel.

Citation:

Dani Tulchinsky, Uvarov, Vladimir , Popov, Inna , Mandler, Daniel , and Magdassi, Shlomo. . 2014. “A Novel Non-Selective Coating Material For Solar Thermal Potential Application Formed By Reaction Between Sol-Gel Titania And Copper Manganese Spinel.”. Sol. Energy Mater. Sol. Cellssolar Energy Materials & Solar Cells, 120, Pp. 23 - 29.

Abstract:

A method for prepg. a novel bixbyite non-selective coating for solar thermal conversion is described. The coating is formed by a thermal reaction between a titania sol-gel precursor with a copper manganese spinel to form a new material, Cu0.44Ti0.44Mn0.84Fe0.28O3, with a bixbyite structure. The effect of temp. and ratio between the two components on the formation of the bixbyite layer (deposited on Inconel by spray-coating) was studied. The absorptance of the films (AM 1.5; 335-2500 nm) with a thickness of 10±2 μm after annealing at 2 h at 650 °C and 750 °C was 97.4% and 94.7%, resp. This synthesis represents a novel approach in which the final solar thermal coating is formed as a continuous and uniform layer which combines both the absorber and the ceramic binder. The developed material shows promising results for future applications as absorber in solar thermal energy conversion. [on SciFinder(R)]