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Synthesis of organic-inorganic hybrids via high-pressure-ramp process: Effect of inorganic nanoparticles loading on structural and photochromic properties

Abstract

Organic polymerization remains a limiting step in preparation of organic-inorganic hybrid materials with a strong concentration of the inorganic component. In this work, high-pressure-ramp process was applied to achieve pHEMA-TiO2 nanoparticulate solids with an unprecedentedly high concentration (12 mol/l) of the inorganic component, which is four times higher than that obtained after radical polymerization induced thermally or by photons. The inorganic nanoparticles underwent morphological and structural changes with an increase of Ti concentration above 1.5 mol/l: they slightly coarsen and crystallize into anatase polymorph. The material possesses a strong photochromic response related to the electron-hole separation on the organic-inorganic interface and can store 1 e- per 5 Ti atoms. The electron storage capacity of the titania nanoparticles decreases upon crystallization.

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Publication details

The article was received on 27 Sep 2018, accepted on 28 Oct 2018 and first published on 29 Oct 2018


Article type: Paper
DOI: 10.1039/C8NR07868H
Citation: Nanoscale, 2018, Accepted Manuscript
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    Synthesis of organic-inorganic hybrids via high-pressure-ramp process: Effect of inorganic nanoparticles loading on structural and photochromic properties

    E. Evlyukhin, L. Museur, P. Diaz-Gomez-Trevino , M. Traoré, O. Brinza, A. Zerr and A. Kanaev , Nanoscale, 2018, Accepted Manuscript , DOI: 10.1039/C8NR07868H

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