The adsorption and reaction of cyclohexanone on the Pt(111) surface

被引：11

作者：

Zhuang, SX ^{[1
]}

Wang, XF ^{[1
]}

Wei, XM ^{[1
]}

Wang, YS ^{[1
]}

Ren, SZ ^{[1
]}

Zhai, RS ^{[1
]}

机构：

[1] CHINESE ACAD SCI,DALIAN INST CHEM PHYS,STATE KEY LAB CATALYSIS,DALIAN 116023,PEOPLES R CHINA

来源：

SURFACE SCIENCE | 1997年 / 376卷 / 1-3期

关键词：

chemisorption; electron energy loss spectroscopy; keytones; platinum; thermal desorption spectroscopy; vibrations of adsorbed molecules;

D O I：

10.1016/S0039-6028(97)00002-2

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 interaction of cyclohexanone with the Pt(111) surface has been investigated by HREELS and TDS. At 160 K, the chemisorption of cyclohexanone induces a ''red-shift'' of the C=O stretch band and a decrease in work function. Heating the sample from 220 to 370 K leads to complete disappearance of the dominant CH2 rocking band at 720 cm(-1) and the C=O stretching band at 1650 cm(-1) indicating the dehydrogenation of the entire adlayer to form intermediate species. Strong bands of the dehydrogenated species appear at 860 and 3000 cm(-1) which is different from phenoxy on Pt(111). Above similar to 380 K, the dehydrogenated species is decomposed to form hydrocarbon fragments and C=O which directly desorbs into the vacuum. (C) 1997 Elsevier Science B.V.

引用

页码：L429 / L433

页数：5

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