Energetics and CO-induced lifting of a (1 x 2) surface reconstruction observed on Pt{311}

被引：26

作者：

Kose, R ^{[1
]}

King, DA ^{[1
]}

机构：

[1] Univ Cambridge, Dept Chem, Cambridge CB2 1EW, England

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 313卷 / 1-2期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/S0009-2614(99)01019-2

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：

Despite expectations from the literature, clean Pt{311} is shown to exhibit a (1 x 2) reconstruction, and CO adsorption leads to a lifting of this reconstruction to a (1 x 1) Pt structure. The reconstruction and its lifting are similar to those observed for CO on Pt{110}. A (1 x 1) island nucleation process occurs above a critical coverage of around 0.16 ML. Sticking probabilities and calorimetric adsorption heats are reported, and from the data the energy difference between Pt{311}-(1 x 1) and (1 x 2) is estimated to be in the order of similar to 10 kJ mol(-1). (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：1 / 6

页数：6

共 32 条

[1] Selective modification of reaction sites for carbon monoxide oxidation on a platinum (113) surface [J].