Growth of TiO2 microspheres with a radially oriented configuration

Quang Duc Truong; Hideki Kato; Makoto Kobayashi; Masato Kakihana

doi:10.1039/c7ce01158j

Growth of TiO₂ microspheres with a radially oriented configuration

Quang Duc Truong, Hideki Kato, Makoto Kobayashi, Masato Kakihana

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

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.

Original language	English
Pages (from-to)	4832-4837
Number of pages	6
Journal	CrystEngComm
Volume	19
Issue number	32
DOIs	https://doi.org/10.1039/c7ce01158j
Publication status	Published - 2017

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

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title = "Growth of TiO2 microspheres with a radially oriented configuration",

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.",

author = "Truong, {Quang Duc} and Hideki Kato and Makoto Kobayashi and Masato Kakihana",

note = "Funding Information: This work was partially supported by the Grant-in-Aid for Scientific Research on Innovative Areas of {"}Fusion materials: Creative Development of Materials and Exploration of Their Function through Molecular Control{"} from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan (No. 2206). The authors gratefully acknowledge Professor Tsugio Sato and Professor Tadafumi Adschiri from Tohoku University for their constructive comments and suggestions. The authors thank Dr T. Miyazaki (Tohoku University) for his help in the TEM and SAED measurements and analysis. Q. D. Truong would like to thank MEXT for awarding the Monbusho Scholarship (No. 093037). Publisher Copyright: {\textcopyright} The Royal Society of Chemistry 2017.",

year = "2017",

doi = "10.1039/c7ce01158j",

language = "English",

volume = "19",

pages = "4832--4837",

journal = "CrystEngComm",

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publisher = "Royal Society of Chemistry",

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AU - Truong, Quang Duc

AU - Kato, Hideki

AU - Kobayashi, Makoto

AU - Kakihana, Masato

N1 - Funding Information: This work was partially supported by the Grant-in-Aid for Scientific Research on Innovative Areas of "Fusion materials: Creative Development of Materials and Exploration of Their Function through Molecular Control" from the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan (No. 2206). The authors gratefully acknowledge Professor Tsugio Sato and Professor Tadafumi Adschiri from Tohoku University for their constructive comments and suggestions. The authors thank Dr T. Miyazaki (Tohoku University) for his help in the TEM and SAED measurements and analysis. Q. D. Truong would like to thank MEXT for awarding the Monbusho Scholarship (No. 093037). Publisher Copyright: © The Royal Society of Chemistry 2017.

PY - 2017

Y1 - 2017

N2 - 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.

AB - 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.

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Growth of TiO₂ microspheres with a radially oriented configuration

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