Adsorption of some substituted ethylene molecules on Pt(111) at 95 K .2. A FT-RAIRS study

被引：22

作者：

Bournel, F

Laffon, C

Parent, P

Tourillon, G

机构：

[1] Lab. l'Uilisation Rayonnement E., Centre Universitaire Paris-Sud, Bât. 209D

来源：

SURFACE SCIENCE | 1996年 / 359卷 / 1-3期

关键词：

adsorption kinetics; aldehydes; carboxylic acid; esters; infrared absorption spectroscopy; platinum;

D O I：

10.1016/0039-6028(96)00024-6

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：

This study was carried out in order to gain insight into the interactions processes between small organic molecules and the Pt(111) surface at 95 K. In the first part of the work, we have shown that acrolein and propanoic acid are weakly linked to the metallic surface, when acrylic acid and MMA are strongly interacting with Pt(111). In these last cases, we were not able to clearly differentiate between a ''di-sigma'' or a ''pi-bonded'' state. The FT-RAIRS experiments presented in this paper, complementary of the others data, allowed us to specify the chemisorbed state. Thus, we confirmed the physisorption for acrolein and propanoic acid, and we showed that acrylic acid and MMA are in interactions with the Pt(111) keeping their pi-character.

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页码：10 / 16

页数：7

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