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Synthesis of anatase TiO2 with exposed (100) facets and enhanced electrorheological activity

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Abstract

Herein, a simple hydrothermal method is employed to synthesize anatase TiO2 with dominant (100) facets, as a precursor, using titanate nanofibers derived from alkali treatment. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) are carried out to confirm the surface morphology and phase structure of the TiO2 product. The formation mechanism of TiO2 enclosed by (100) and (101) facets is deduced to be the selective adsorption of OH on the (100) facets of anatase TiO2. Electroheological (ER) experiments indicate that the tetragonal-facet-rod anatase TiO2 with exposed (100) facets exhibits an excellent ER performance with a high ER efficiency of up to 52.5, which results from the anisotropy of its special morphology. In addition, the effect of shape on its dielectric property is investigated via broadband dielectric spectroscopy.

Graphical abstract: Synthesis of anatase TiO2 with exposed (100) facets and enhanced electrorheological activity

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Publication details

The article was received on 18 Jul 2017, accepted on 27 Sep 2017 and first published on 28 Sep 2017


Article type: Paper
DOI: 10.1039/C7SM01422H
Citation: Soft Matter, 2017, Advance Article
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    Synthesis of anatase TiO2 with exposed (100) facets and enhanced electrorheological activity

    K. He, Q. Wen, C. Wang, B. Wang, S. Yu, C. Hao and K. Chen, Soft Matter, 2017, Advance Article , DOI: 10.1039/C7SM01422H

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