Surface properties of ceria synthesised using Triton-X based reverse microemulsions.

Authors :: Paschalidou P
Theocharis CR
Source :: RSC advances [RSC Adv] 2019 Mar 01; Vol. 9 (12), pp. 7025-7031. Date of Electronic Publication: 2019 Mar 01 (Print Publication: 2019).
Publication Year :: 2019
Abstract: The effect of the tail length of Triton-X surfactants on the surface properties of ceria prepared by means of reversed micelles and Ce(O <superscript>i</superscript> Pr) <subscript>4</subscript> has been systematically studied. Generally, solids with increased surface areas (up to 136 m <superscript>2</superscript> g <superscript>-1</superscript> ) were synthesised. It was shown that the tail length strongly affects the surface characteristics. Further studies were carried out using UV-Vis, ATR-FTIR, XRD and TGA/DSC studies of the precursor gels as well as N <subscript>2</subscript> -isothermal adsorption BET, XRD, FT-IR, UV-Vis diffuse reflectance and SEM investigations of the final solids samples. An interaction mechanism between the ceria precursor molecules and the polar tail of the reversed Triton X micelles and the formation of ceria (CeO <subscript>2</subscript> ) particles in the aqueous nucleus of the reversed microemulsions is proposed.<br />Competing Interests: There are no conflicts to declare.<br /> (This journal is © The Royal Society of Chemistry.)

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