SCANNING TUNNELING MICROSCOPY INVESTIGATION OF SMALL PALLADIUM CATALYST PARTICLES SUPPORTED ON GRAPHITE

被引：16

作者：

PORTE, L ^{[1
]}

PHANER, M ^{[1
]}

NOUPA, C ^{[1
]}

TARDY, B ^{[1
]}

BERTOLINI, JC ^{[1
]}

机构：

[1] INST RECH CATALYSE,F-69626 VILLEURBANNE,FRANCE

来源：

ULTRAMICROSCOPY | 1992年 / 42卷

关键词：

D O I：

10.1016/0304-3991(92)90448-S

中图分类号：

TH742 [显微镜];

学科分类号：

摘要：

Palladium particles have been vapour-deposited on highly oriented pyrolitic graphite at room temperature under ultra-high vacuum, and then observed with a scanning tunneling microscope operated in air. Deposits in the 10(13)-10(15) Pd atoms cm-2 range were investigated. For low-density deposits clusters are quite flat, 1-2 nm in size. The number of clusters increases regularly along with the amount of palladium deposited, until a nearly entire coverage of the surface by clusters was obtained. Then for higher-density deposits, three-dimensional islands could be imaged.

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页码：1355 / 1359

页数：5

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