Nano Archive

Black Cr/a-Cr2O3 nanoparticles based solar absorbers

Khamlich, Saleh (2011) Black Cr/a-Cr2O3 nanoparticles based solar absorbers. Physica B .

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Abstract

Monodisperse spherical core–shell particles of Cr/α-Cr2O3 with high adhesion were successfully coated on rough copper substrates by a simple self-assembly-like method for the use in solar thermal absorbers. The structure and morphology of the core-shell particles of Cr/α-Cr2O3 were effectively controlled by deposition temperature and the pH of the initial precursor solution. Their characterizations were carried out with X-ray diffraction, scanning electron microscopy, energy dispersive spectrometry and attenuated total reflection, as well as UV–vis diffuse reflectance spectroscopy. The samples aged for more than 40 h at 75 °C exhibit the targeted high absorbing optical characteristic “Black chrome” while those aged for ≤40 h show a significant high UV–vis diffuse reflectance “green color”.

Item Type:Article
Subjects:Material Science > Functional and hybrid materials
Material Science > Nanochemistry
Material Science > Nanostructured materials
ID Code:11811
Deposited By:Mr Saleh Khamlich
Deposited On:27 Mar 2012 14:55
Last Modified:27 Mar 2012 14:55

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