Novel crystal growth from a two-dimensionally bound nanoscopic system. Formation of oriented anatase nanocrystals from titania nanosheets

被引:32
作者
Fukuda, K
Sasaki, T
Watanabe, M
Nakai, I
Inaba, K
Omote, K
机构
[1] Natl Inst Mat Sci, Adv Mat Lab, Tsukuba, Ibaraki 3050044, Japan
[2] Sci Univ Tokyo, Dept Appl Chem, Tokyo 1628601, Japan
[3] Rigaku Corp, Xray Res Lab, Tokyo 1968666, Japan
[4] JST, CREST, Tokyo 1968666, Japan
关键词
D O I
10.1021/cg025619m
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A monolayer film of unilamellar titania crystallites consisting of two planes of Ti/O atoms and two additional planes of O atoms underwent an interesting structural change by heat treatment at 800 degreesC and above to produce anatase nanocrystals oriented along the c-axis. This phenomenon is distinct from phase transformation of the bulk phase in terms of the significantly higher crystallization temperature of anatase and the preferential orientation of nanocrystals. This may be peculiar to two-dimensional nanosystems, providing a new route for the fabrication of oriented nanocrystals.
引用
收藏
页码:281 / 283
页数:3
相关论文
共 27 条
[1]   Control of crystal nucleation by patterned self-assembled monolayers [J].
Aizenberg, J ;
Black, AJ ;
Whitesides, GM .
NATURE, 1999, 398 (6727) :495-498
[2]  
[Anonymous], ADV XRAY ANAL
[3]   STRUCTURAL ELECTRONIC RELATIONSHIPS IN INORGANIC SOLIDS - POWDER NEUTRON-DIFFRACTION STUDIES OF THE RUTILE AND ANATASE POLYMORPHS OF TITANIUM-DIOXIDE AT 15 AND 295-K [J].
BURDETT, JK ;
HUGHBANKS, T ;
MILLER, GJ ;
RICHARDSON, JW ;
SMITH, JV .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (12) :3639-3646
[4]   ULTRAHIGH-VACUUM METALORGANIC CHEMICAL-VAPOR-DEPOSITION GROWTH AND IN-SITU CHARACTERIZATION OF EPITAXIAL TIO2 FILMS [J].
CHEN, S ;
MASON, MG ;
GYSLING, HJ ;
PAZPUJALT, GR ;
BLANTON, TN ;
CASTRO, T ;
CHEN, KM ;
FICTORIE, CP ;
GLADFELTER, WL ;
FRANCIOSI, A ;
COHEN, PI ;
EVANS, JF .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1993, 11 (05) :2419-2429
[5]   Layer-by-layer growth and condensation reactions of niobate and titanoniobate thin films [J].
Fang, MM ;
Kim, CH ;
Saupe, GB ;
Kim, HN ;
Waraksa, CC ;
Miwa, T ;
Fujishima, A ;
Mallouk, TE .
CHEMISTRY OF MATERIALS, 1999, 11 (06) :1526-1532
[6]   Growth of epitaxial anatase (001) and (101) films [J].
Herman, GS ;
Gao, Y .
THIN SOLID FILMS, 2001, 397 (1-2) :157-161
[7]   HELICAL MICROTUBULES OF GRAPHITIC CARBON [J].
IIJIMA, S .
NATURE, 1991, 354 (6348) :56-58
[8]   Preparation of Co3O4 nanoparticles by a polymer combustion route [J].
Jiu, JT ;
Ge, Y ;
Li, XN ;
Nie, L .
MATERIALS LETTERS, 2002, 54 (04) :260-263
[9]   Large-scale production of single-walled carbon nanotubes by the electric-arc technique [J].
Journet, C ;
Maser, WK ;
Bernier, P ;
Loiseau, A ;
delaChapelle, ML ;
Lefrant, S ;
Deniard, P ;
Lee, R ;
Fischer, JE .
NATURE, 1997, 388 (6644) :756-758
[10]   LAYER-BY-LAYER ASSEMBLY OF INTERCALATION COMPOUNDS AND HETEROSTRUCTURES ON SURFACES - TOWARD MOLECULAR BEAKER EPITAXY [J].
KELLER, SW ;
KIM, HN ;
MALLOUK, TE .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1994, 116 (19) :8817-8818