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Issue 32, 2017
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Growth of TiO2 microspheres with a radially oriented configuration

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Abstract

Crystalline mesoporous materials with oriented configurations are promising for high-performance energy storage and conversion devices. In this work, hierarchical microspheres constructed from radially oriented single-crystalline TiO2 nanorods have been fabricated by a facile hydrothermal approach using oxalic acid as a chelating and structure-directing agent. The obtained mesoporous TiO2 microspheres have been characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and Brunauer–Emmett–Teller specific surface area measurement to reveal their unique properties. The growth and assembly process of the nanorod-based microspheres were elucidated in view of chelation-assisted assembly. It was found that oxalic acid played a crucial role in the oriented assembly of nanorods into well-defined microspheres.

Graphical abstract: Growth of TiO2 microspheres with a radially oriented configuration

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Publication details

The article was received on 21 Jun 2017, accepted on 14 Jul 2017 and first published on 14 Jul 2017


Article type: Paper
DOI: 10.1039/C7CE01158J
Citation: CrystEngComm, 2017,19, 4832-4837
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    Growth of TiO2 microspheres with a radially oriented configuration

    Q. D. Truong, H. Kato, M. Kobayashi and M. Kakihana, CrystEngComm, 2017, 19, 4832
    DOI: 10.1039/C7CE01158J

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