anatase;
nanorods;
in situ-templated;
hydrothermal;
D O I:
10.1016/j.actamat.2004.12.001
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Anatase single crystal nanorods with aspect ratios of 4-10 and diameters of 70-100 nm were prepared by hydrothermal treatment of tetraethylammonium hydroxide peptized titania sol doped with Fe(III) cations at 200 degrees\C. Two types of iron sources were used as dopants: (i) Fe(NO3)(3), which could form alpha-FeOOH during the hydrothermal synthesis; (ii) hydrothermally synthesized ot-FeOOH. The formation of anatase nanorods in the Fe3+ doped titania could be attributed to porous goethite (alpha-FeOOH) rods formed during the hydrothermal treatment. The in situ formed ot-FeOOH template could lead to well dispersed anatase nanorod crystals in contrast to the strongly agglomerated rods obtained when adding as-synthesized ot-FeOOH. The templates do not need to be removed since a solid solution forms between the Fe ions and anatase during hydrothermal treatment. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
机构:
Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, United States
Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, United StatesCondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, United States
Ding, Y.
Han, W.-Q.
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机构:
Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY 11973, United StatesCondensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, United States
机构:
S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R ChinaS China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
Song, Peng-Yuan
Zhang, Wei-De
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S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R ChinaS China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China
机构:
Univ Sains Malaysia, Green Elect Nanomat Grp, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Pulau Pinang, MalaysiaUniv Sains Malaysia, Green Elect Nanomat Grp, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Pulau Pinang, Malaysia
Abd Aziz, Siti Nor Qurratu Aini
Pung, Swee-Yong
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Univ Sains Malaysia, Green Elect Nanomat Grp, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Pulau Pinang, MalaysiaUniv Sains Malaysia, Green Elect Nanomat Grp, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Pulau Pinang, Malaysia
Pung, Swee-Yong
Lockman, Zainovia
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机构:
Univ Sains Malaysia, Green Elect Nanomat Grp, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Pulau Pinang, MalaysiaUniv Sains Malaysia, Green Elect Nanomat Grp, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Pulau Pinang, Malaysia
Lockman, Zainovia
Hamzah, Nur Atiqah
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Univ Sains Malaysia, Green Elect Nanomat Grp, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Pulau Pinang, MalaysiaUniv Sains Malaysia, Green Elect Nanomat Grp, Sch Mat & Mineral Resources Engn, Nibong Tebal 14300, Pulau Pinang, Malaysia
Hamzah, Nur Atiqah
FRONTIERS IN MATERIALS AND MINERALS ENGINEERING,
2014,
858
: 151
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