Self-Assembled Metallic Nanowires on a Dielectric Support: Pd on Rutile TiO2(110)

被引：17

作者：

Humphrey, David S. ^{[1
,2
]}

Cabailh, Gregory ^{[1
,2
]}

Pang, Chi L. ^{[1
,2
]}

Muryn, Chris A. ^{[3
]}

Cavill, Stuart A. ^{[4
]}

Marchetto, Helder ^{[4
,5
]}

Potenza, Alessandro ^{[4
]}

Dhesi, Sarnjeet S. ^{[4
]}

Thornton, Geoff ^{[1
,2
]}

机构：

[1] UCL, London Ctr Nanotechnol, London WC1H 0AJ, England

[2] UCL, Dept Chem, London WC1H 0AJ, England

[3] Univ Manchester, Sch Chem, Manchester M13 9PL, Lancs, England

[4] Diamond Light Source Ltd, Didcot OX11 0DE, Oxon, England

[5] Max Planck Soc, Fritz Haber Inst, D-14195 Berlin, Germany

来源：

NANO LETTERS | 2009年 / 9卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

X-RAY PHOTOEMISSION; ENERGY-LOSS; SURFACE; PALLADIUM; GROWTH; NANOPARTICLES; MICROSCOPY; RESOLUTION; REDUCTION; PARTICLES;

D O I：

10.1021/nl802703e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Palladium nanoparticles supported on rutile TiO2(110)-1 x 1 have been studied using the complementary techniques of scanning tunneling microscopy and X-ray photoemission electron microscopy. Two distinct types of palladium nanoparticles are observed, namely long nanowires up to 1000 nm long, and smaller dotlike features with diameters ranging from 80-160 nm. X-ray photoemission electron microscopy reveals that the nanoparticles are composed of metallic palladium, separated by the bare TiO2(110) surface.

引用

页码：155 / 159

页数：5

共 31 条

[21] Photoemission electron microscopy with chemical sensitivity: SPELEEM methods and applications [J].

Locatelli, A. ;

Aballe, L. ;

Mentes, T. O. ;

Kiskinova, M. ;

Bauer, E. .

SURFACE AND INTERFACE ANALYSIS, 2006, 38 (12-13) :1554-1557

[22] Efficient reduction of NOx by H2 under oxygen-rich conditions over Pd/TiO2 catalysts:: an in situ DRIFTS study [J].

Macleod, N ;

Cropley, R ;

Lambert, RM .

CATALYSIS LETTERS, 2003, 86 (1-3) :69-75

[23] A NEW APPROACH FOR CURVE-RESOLVING PHOTOEMISSION PEAKS IN XPS [J].

MATTOGNO, G ;

RIGHINI, G .

SURFACE AND INTERFACE ANALYSIS, 1991, 17 (10) :689-692

[24]

*NIST, NIST XRAY PHOT SPECT

[25] Adsorption of Pd atoms and dimers on the TiO2 (110) surface:: A first principles study [J].

Sanz, Javier Fdez. ;

Marquez, A. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2007, 111 (10) :3949-3955

[26] HIGH-RESOLUTION X-RAY PHOTOEMISSION SPECTRUM OF VALENCE BANDS OF GOLD [J].

SHIRLEY, DA .

PHYSICAL REVIEW B, 1972, 5 (12) :4709-&

[27] Growth shapes of supported Pd nanocrystals on SrTiO3(001) -: art. no. 165403 [J].

Silly, F ;

Powell, AC ;

Martin, MG ;

Castell, MR .

PHYSICAL REVIEW B, 2005, 72 (16)

[28] Selecting the shape of supported metal nanocrystals:: Pd huts, hexagons, or pyramids on SrTiO3(001) -: art. no. 046103 [J].

Silly, F ;

Castell, MR .

PHYSICAL REVIEW LETTERS, 2005, 94 (04)

[29] The encapsulation of Pd by the supporting TiO2(110) surface induced by strong metal-support interactions [J].

Suzuki, T ;

Souda, R .

SURFACE SCIENCE, 2000, 448 (01) :33-39

[30]

Yeh J.J., 1985, Atomic Data and Nuclear Data Tables, P32

← 1 2 3 4 →