Stabilization of Carboxylate Surface Species on Pd(111)

被引：7

作者：

Calaza, Florencia ^{[4
]}

Tysoe, Wilfred T. ^{[2
,3
]}

Stacchiola, Dario J. ^{[1
]}

机构：

[1] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA

[2] Univ Wisconsin, Dept Chem & Biochem, Milwaukee, WI 53211 USA

[3] Univ Wisconsin, Surface Studies Lab, Milwaukee, WI 53211 USA

[4] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

来源：

ADSORPTION SCIENCE & TECHNOLOGY | 2011年 / 29卷 / 06期

基金：

美国国家科学基金会;

关键词：

ABSORPTION INFRARED-SPECTROSCOPY; PALLADIUM-CATALYZED SYNTHESIS; ENERGY-ELECTRON DIFFRACTION; ETHYLIDYNE-COVERED PD(111); DENSITY-FUNCTIONAL THEORY; ACETIC-ACID; VINYL-ACETATE; CARBON-MONOXIDE; ADSORPTION; OXYGEN;

D O I：

10.1260/0263-6174.29.6.603

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The stabilization of formate and acetate surface species on Pd(111) has been studied by temperature-programmed desorption and infrared reflection absorption spectroscopy (IRRAS). In addition to the previously reported stabilization of carboxylate species by the pre-adsorption of oxygen, an even bigger stabilizing effect was observed upon the adsorption of carbon monoxide onto formate- and acetate-covered surfaces. The presence of carbon monoxide delays the decomposition of carboxylate species by blocking surrounding sites. Proper use of co-adsorbed species could help to improve selectivity or activity in heterogeneous catalytic reactions.

引用

页码：603 / 611

页数：9

共 32 条

[1] THE ADSORPTION AND DECOMPOSITION OF FORMIC-ACID ON CLEAN AND OXYGEN-DOSED PD(110) [J].