Surfactant-assisted elimination of a high energy facet as a means of controlling the shapes of TiO2 nanocrystals

被引：531

作者：

Jun, YW

Casula, MF

Sim, JH

Kim, SY ^{[1
]}

Cheon, J

Alivisatos, AP

机构：

[1] Korea Adv Inst Sci & Technol, Taejon 305701, South Korea

[2] Yonsei Univ, Seoul 120749, South Korea

[3] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2003年 / 125卷 / 51期

关键词：

D O I：

10.1021/ja0369515

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The surfactant-mediated shape evolution of titanium dioxide anatase nanocrystals in nonaqueous media was studied. The shape evolves from bullet and diamond structures to rods and branched rods. The modulation of surface energies of the different crystallographic faces through the use of a surface selective surfactant is the key parameter for the shape control.

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页码：15981 / 15985

页数：5

相关论文

共 20 条

[1] Aggregation-based crystal growth and microstructure development in natural iron oxyhydroxide biomineralization products [J].

Banfield, JF ;

Welch, SA ;

Zhang, HZ ;

Ebert, TT ;

Penn, RL .

SCIENCE, 2000, 289 (5480) :751-754

[2]

CHERNSEDDINE A, 1999, EUR J INORG CHEM, P235

[3]

Donnay JDH, 1937, AM MINERAL, V22, P446

[4] Linearly polarized emission from colloidal semiconductor quantum rods [J].

Hu, JT ;

Li, LS ;

Yang, WD ;

Manna, L ;

Wang, LW ;

Alivisatos, AP .

SCIENCE, 2001, 292 (5524) :2060-2063

[5] Photoinduced conversion of silver nanospheres to nanoprisms [J].

Jin, RC ;

Cao, YW ;

Mirkin, CA ;

Kelly, KL ;

Schatz, GC ;

Zheng, JG .

SCIENCE, 2001, 294 (5548) :1901-1903

[6] Architectural control of magnetic semiconductor nanocrystals [J].

Jun, YW ;

Jung, YY ;

Cheon, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (04) :615-619

[7] Controlled synthesis of multi-armed CdS nanorod architectures using monosurfactant system [J].

Jun, YW ;

Lee, SM ;

Kang, NJ ;

Cheon, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (21) :5150-5151

[8] Single-crystalline star-shaped nanocrystals and their evolution: Programming the geometry of nano-building blocks [J].

Lee, SM ;

Jun, YW ;

Cho, SN ;

Cheon, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (38) :11244-11245

[9] Synthesis of soluble and processable rod-, arrow-, teardrop-, and tetrapod-shaped CdSe nanocrystals [J].

Manna, L ;

Scher, EC ;

Alivisatos, AP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (51) :12700-12706

[10]

Pacholski C, 2002, ANGEW CHEM INT EDIT, V41, P1188, DOI 10.1002/1521-3773(20020402)41:7<1188::AID-ANIE1188>3.0.CO