Reaction pathways in methanol oxidation at Cu(110) surfaces

被引：44

作者：

Carley, AF ^{[1
]}

Davies, PR ^{[1
]}

Mariotti, GG ^{[1
]}

Read, S ^{[1
]}

机构：

[1] UNIV WALES COLL CARDIFF,DEPT CHEM,CARDIFF CF1 3TB,S GLAM,WALES

来源：

SURFACE SCIENCE | 1996年 / 364卷 / 01期

关键词：

alcohols; chemisorption; copper; low index single crystal surfaces; models of surface chemical reactions; surface chemical reaction; thermal desorption spectroscopy;

D O I：

10.1016/0039-6028(96)00731-5

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：

Previous temperature programmed desorption (TPD) studies [1,2] have concluded that formaldehyde desorption is the only significant pathway in methanol oxidation at Cu(110) surfaces. We show that this is true only under a limited range of experimental conditions, and in fact formate production is often the more favourable reaction pathway. This has important implications for other systems that have been discussed where it has been assumed that the formate formation pathway on copper is unfavourable.

引用

页码：L525 / L529

页数：5

共 12 条

[1] MOLECULAR-BEAM STUDIES OF METHANOL PARTIAL OXIDATION ON CU(110) [J].

BARNES, C ;

PUDNEY, P ;

GUO, QM ;

BOWKER, M .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1990, 86 (15) :2693-2699

[2] XPS, UPS AND THERMAL-DESORPTION STUDIES OF ALCOHOL ADSORPTION ON CU(110) .1. METHANOL [J].

BOWKER, M ;

MADIX, RJ .

SURFACE SCIENCE, 1980, 95 (01) :190-206

[3] Oxidation of methanol at copper surfaces [J].

Carley, AF ;

Owens, AW ;

Rajumon, MK ;

Roberts, MW ;

Jackson, SD .

CATALYSIS LETTERS, 1996, 37 (1-2) :79-87

[4] ROLES OF CHEMISORBED OXYGEN AND ZINC-OXIDE ISLANDS ON CU(110) SURFACES FOR METHANOL DECOMPOSITION [J].

FU, SS ;

SOMORJAI, GA .

JOURNAL OF PHYSICAL CHEMISTRY, 1992, 96 (11) :4542-4549

[5] ASPECTS OF FORMALDEHYDE SYNTHESIS ON CU(110) AS STUDIED BY STM [J].

LEIBSLE, FM ;

FRANCIS, SM ;

HAQ, S ;

BOWKER, M .

SURFACE SCIENCE, 1994, 318 (1-2) :46-60

[6] SCANNING-TUNNELING-MICROSCOPY STUDIES OF FORMALDEHYDE SYNTHESIS ON CU(110) [J].

LEIBSLE, FM ;

FRANCIS, SM ;

DAVIS, R ;

XIANG, N ;

HAQ, S ;

BOWKER, M .

PHYSICAL REVIEW LETTERS, 1994, 72 (16) :2569-2572

[7] DIRECT SYNTHESIS OF FORMATE FROM METHANOL OXIDATION ON THE CUPD[85-15](110)P(2 X-1) SURFACE - INDUCTION OF A NEW REACTION PATHWAY VIA A LIGAND EFFECT [J].

NEWTON, MA ;

BOWKER, M .

CATALYSIS LETTERS, 1993, 21 (1-2) :139-148

[8] REACTION OF METHANOL WITH CU(111) AND CU(111) + O(ADS) [J].

RUSSELL, JN ;

GATES, SM ;

YATES, JT .

SURFACE SCIENCE, 1985, 163 (2-3) :516-540

[9] THE OXIDATION OF METHANOL ON CU(100) [J].

RYBERG, R .

JOURNAL OF CHEMICAL PHYSICS, 1985, 82 (01) :567-573

[10] A SPECTROSCOPIC STUDY OF THE ADSORPTION AND REACTIONS OF METHANOL, FORMALDEHYDE AND METHYL FORMATE ON CLEAN AND OXYGENATED CU(110) SURFACES [J].

SEXTON, BA ;

HUGHES, AE ;

AVERY, NR .

SURFACE SCIENCE, 1985, 155 (01) :366-386

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