Spatially confined corner defects induce chemical functionality of TiO2 nanorods

被引：47

作者：

Rabatic, BM

Dimitrijevic, NM

Cook, RE

Saponjic, ZV

Rajh, T ^{[1
]}

机构：

[1] Argonne Natl Lab, Div Chem, Ctr Nanoscale Mat, Argonne, IL 60439 USA

[2] Argonne Natl Lab, Div Sci Mat, Argonne, IL 60439 USA

来源：

ADVANCED MATERIALS | 2006年 / 18卷 / 08期

关键词：

D O I：

10.1002/adma.200500988

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The atomic structure of anisotropic titanium dioxide nanoparticles is characterized by HRTEM to identify coordination defects at the tip surfaces of the nanorods (see figure). At the tip regions of the nanoparticles, the titanium metal-metal atom spacings extend between the (001.) planes and demonstrate site-specific chemical reactivity towards surface modifiers. The observed reactivity of the nanorod tip is reminiscent of selectivity found in organic and biological self-organizing systems.

引用

页码：1033 / +

页数：6

共 28 条

[1] Diffuse reflection infrared spectroscopy (DRIFTS):: Application to the in situ analysis of catalysts [J].

Armaroli, T ;

Bécue, T ;

Gautier, S .

OIL & GAS SCIENCE AND TECHNOLOGY-REVUE D IFP ENERGIES NOUVELLES, 2004, 59 (02) :215-237

[2] Predicting the energetics, phase stability, and morphology evolution of faceted and spherical anatase nanocrystals [J].

Barnard, AS ;

Zapol, P .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (48) :18435-18440

[3] Variations of the local electronic surface properties of TiO2(110) induced by intrinsic and extrinsic defects -: art. no. 235401 [J].

Batzill, M ;

Katsiev, K ;

Gaspar, DJ ;

Diebold, U .

PHYSICAL REVIEW B, 2002, 66 (23) :1-10

[4]

Briggs D., 1983, Practical Surface Analysis by Auger and X-ray Photoelectron Spectroscopy

[5] Preferential end-to-end assembly of gold nanorods by biotin-streptavidin connectors [J].

Caswell, KK ;

Wilson, JN ;

Bunz, UHF ;

Murphy, CJ .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (46) :13914-13915

[6] XAFS studies of surface structures of TiO2 nanoparticles and photocatalytic reduction of metal ions [J].

Chen, LX ;

Rajh, T ;

Wang, ZY ;

Thurnauer, MC .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (50) :10688-10697

[7]

Courjon D, 2003, NEAR FIELD MICROSCOP

[8] Low-temperature synthesis of soluble and processable organic-capped anatase TiO2 nanorods [J].

Cozzoli, PD ;

Kornowski, A ;

Weller, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2003, 125 (47) :14539-14548

[9] HOST-GUEST COMPLEXATION .58. GUEST RELEASE AND CAPTURE BY HEMICARCERANDS INTRODUCES THE PHENOMENON OF CONSTRICTIVE BINDING [J].

CRAM, DJ ;

TANNER, ME ;

KNOBLER, CB .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (20) :7717-7727

[10] Structure and properties of TiO2 surfaces:: a brief review [J].

Diebold, U .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2003, 76 (05) :681-687

← 1 2 3 →