Titania polymorphs derived from crystalline titanium diboride

被引：42

作者：

Liu, Gang ^{[1
,2
,3
]}

Yang, Hua Gui ^{[4
]}

Sun, Chenghua ^{[1
,2
]}

Cheng, Lina ^{[1
,2
]}

Wang, Lianzhou ^{[1
,2
]}

Lu, Gao Qing ^{[1
,2
]}

Cheng, Hui-Ming ^{[3
]}

机构：

[1] Univ Queensland, ARC Ctr Excellence Funct Nanomat, Sch Engn, Brisbane, Qld 4072, Australia

[2] Univ Queensland, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia

[3] Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China

[4] E China Univ Sci & Technol, Key Lab Ultrafine Mat, Minist Educ, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China

来源：

CRYSTENGCOMM | 2009年 / 11卷 / 12期

基金：

澳大利亚研究理事会;

关键词：

PHOTOCATALYTIC ACTIVITY; MESOPOROUS TITANIA; RUTILE TIO2; SINGLE-CRYSTALS; ANATASE; BROOKITE; TEMPERATURE; FILMS; WATER; FABRICATION;

D O I：

10.1039/b909191m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Due to its specific bonds and intrinsic chemical stability and due to its capability of controllably releasing titanium species, TiB2 was chosen as a precursor for synthesizing phase tunable (rutile/anatase/brookite) titania with different morphologies (rutile nanocones, anatase bipyramids and brookite spherical nanoparticles) under hydrothermal treatment. The mechanisms of the chemical reactions involved and evolution of low-index crystal facets (001) and (100) of TiB2 during hydrothermal treatment were experimentally and theoretically studied in this work. It is demonstrated that a new synthetic pathway for titania polymorphs based on the intrinsic strong bonds of TiB2 is developed which could also be applicable to a number of other metal oxides using metal borides such as ZrB2, TaB, Nb3B4 as precursors.

引用

页码：2677 / 2682

页数：6

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