A SCANNING TUNNELING MICROSCOPY STUDY OF THE SURFACE-MORPHOLOGY OF SUPPORTED GOLD PARTICLES

被引：8

作者：

THOMAS, PA ^{[1
]}

LEE, WH ^{[1
]}

MASEL, RI ^{[1
]}

机构：

[1] UNIV ILLINOIS,URBANA,IL 61801

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS | 1990年 / 8卷 / 05期

关键词：

D O I：

10.1116/1.576518

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Scanning tunneling microscopy (STM) was used to examine the surface structure of supported gold particles. STM images of annealed gold particles showed that particles larger than 150 Å have a polyhedral shape and a relatively smooth surface morphology. However, the surfaces of the particles smaller than 60 Å remained highly corrugated even after long annealing times. We believe that the difference in morphology of large and small particles may have some important implications for supported metal catalysis. © 1990, American Vacuum Society. All rights reserved.

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页码：3653 / 3656

页数：4

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