XPS, UPS, TPD and TPR studies of oxygen species active in silver-catalysed ethylene epoxidation

被引：32

作者：

Bukhtiyarov, VI ^{[1
]}

Kaichev, VV ^{[1
]}

Podgornov, EA ^{[1
]}

Prosvirin, IP ^{[1
]}

机构：

[1] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

来源：

CATALYSIS LETTERS | 1999年 / 57卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

silver; oxygen; ethylene; epoxidation; isotope; photoelectron spectroscopy; temperature-programmed desorption;

D O I：

10.1023/A:1019016120040

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 covalent oxygen chemisorbed on silver has been characterised by XPS, UPS, TPD and TPR. It has been shown that this oxygen species active in ethylene epoxidation is characterised by full isotope scrambling in TPD spectra of O-2 and the absence of UPS lines located below the silver 4d zone. Both the results testify its atomic origin.

引用

页码：233 / 239

页数：7

共 23 条

[1] INTERACTION OF O-2, CO2, CO, C2H4 AND C2H4O WITH AG(110) [J].

BACKX, C ;

DEGROOT, CPM ;

BILOEN, P ;

SACHTLER, WMH .

SURFACE SCIENCE, 1983, 128 (01) :81-103

[2] ADSORPTION OF OXYGEN ON AG(110) STUDIED BY HIGH-RESOLUTION ELS AND TPD [J].

BACKX, C ;

DEGROOT, CPM ;

BILOEN, P .

SURFACE SCIENCE, 1981, 104 (01) :300-317

[3] Interaction of oxygen with silver at high temperature and atmospheric pressure: A spectroscopic and structural analysis of a strongly bound surface species [J].

Bao, X ;

Muhler, M ;

SchedelNiedrig, T ;

Schlogl, R .

PHYSICAL REVIEW B, 1996, 54 (03) :2249-2262

[4] Study of high-temperature oxygen states on the silver surface by XPS and UPS [J].

Boronin, AI ;

Koscheev, SV ;

Malakhov, VF ;

Zhidomirov, GM .

CATALYSIS LETTERS, 1997, 47 (02) :111-117

[5] XPS and UPS study of oxygen states on silver [J].

Boronin, AI ;

Koscheev, SV ;

Zhidomirov, GM .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1998, 96 (1-3) :43-51

[6] STAGES IN THE MODIFICATION OF A SILVER SURFACE FOR CATALYSIS OF THE PARTIAL OXIDATION OF ETHYLENE [J].

BUKHTIYAROV, VI ;

BORONIN, AI ;

SAVCHENKO, VI .

JOURNAL OF CATALYSIS, 1994, 150 (02) :262-267

[7]

BUKHTIYAROV VI, 1994, J CATAL, V150, P268, DOI 10.1006/jcat.1994.1345

[8] STUDY OF REACTIVITY OF OXYGEN STATES ADSORBED AT A SILVER SURFACE TOWARDS C2H4 BY XPS, TPD AND TPR [J].

BUKHTIYAROV, VI ;

PROSVIRIN, IP ;

KVON, RI .

SURFACE SCIENCE, 1994, 320 (1-2) :L47-L50

[9] MODEL STUDIES OF ETHYLENE EPOXIDATION CATALYZED BY THE AG(110) SURFACE [J].

CAMPBELL, CT ;

PAFFETT, MT .

SURFACE SCIENCE, 1984, 139 (2-3) :396-416

[10] THE SELECTIVE EPOXIDATION OF ETHYLENE CATALYZED BY AG(111) - A COMPARISON WITH AG(110) [J].

CAMPBELL, CT .

JOURNAL OF CATALYSIS, 1985, 94 (02) :436-444

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