CHARACTERIZATION OF THE PT-C BOND OF CO ADSORBED BY SMALL PT PARTICLES IN A NAX ZEOLITE BY IR DIFFUSE-REFLECTANCE SPECTROSCOPY

被引：25

作者：

KAZANSKY, VB ^{[1
]}

BOROVKOV, VY ^{[1
]}

SOKOLOVA, N ^{[1
]}

JAEGER, NI ^{[1
]}

SCHULZEKLOFF, G ^{[1
]}

机构：

[1] UNIV BREMEN,INST ANGEW & PHYS CHEM,FB2,D-28334 BREMEN,GERMANY

来源：

CATALYSIS LETTERS | 1994年 / 23卷 / 3-4期

关键词：

CO CHEMISORPTION ON PT; CARBON-PT BOND; IR DIFFUSE REFLECTANCE SPECTROSCOPY;

D O I：

10.1007/BF00811361

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The unusual properties of small (1-2 nm) Pt particles within a zeolite support are documented by diffuse reflectance infrared spectroscopy of the metal-carbon bond of linearly adsorbed CO. The wave number of the metal-carbon stretching frequency is found to be about 60 cm-1 higher compared to larger particles (2-3 nm) or to the bulk metal. The stronger bond is attributed to a negative charge on the small metal particles.

引用

页码：263 / 269

页数：7

共 13 条

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