THE EFFECT OF WATER ON THE FORMATION OF STRONGLY BOUND OXYGEN ON SILVER SURFACES

被引：76

作者：

BAO, X

MUHLER, M

PETTINGER, B

UCHIDA, Y

LEHMPFUHL, G

SCHLOGL, R

ERTL, G

机构：

[1] Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, D-14195

来源：

CATALYSIS LETTERS | 1995年 / 32卷 / 1-2期

关键词：

OXYGEN; PARTIAL OXIDATION; RECONSTRUCTION; REFLECTION ELECTRON MICROSCOPY; RAMAN SPECTROSCOPY; SILVER; WATER;

D O I：

10.1007/BF00806112

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：

Interaction of water with an oxygenated Ag(111) surface leads to an enhancement of the surface restructuring and an activated formation of hydroxyl groups (OH) located stably on the surface and incorporated in the subsurface region, as evidenced by means of reflection electron microscopy (REM) and in situ Raman spectroscopy. Dehydroxylation of OHads at elevated temperatures releases the strongly bound oxygen species labelled O-gamma at the surface, and offers an alternative to the energetically less favorable pathway for the direct formation of the O-gamma species from molecular oxygen.

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页码：171 / 183

页数：13

相关论文

共 36 条

[1] REACTION PATHWAYS IN THE OXYDEHYDROGENATION OF AMMONIA AT CU(110) SURFACES [J].

AFSIN, B ;

DAVIES, PR ;

PASHUSKY, A ;

ROBERTS, MW ;

VINCENT, D .

SURFACE SCIENCE, 1993, 284 (1-2) :109-120

[2] CHEMISORPTION OF OXYGEN AT AG(110) SURFACES AND ITS ROLE IN ADSORBATE ACTIVATION [J].

AU, CT ;

SINGHBOPARAI, S ;

ROBERTS, MW ;

JOYNER, RW .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1983, 79 :1779-1791

[3]

AUCT, 1982, SURF SCI, V115, pL117

[4] INSITU RAMAN STUDIES OF ETHYLENE OXIDATION AT AG(111) AND AG(110) UNDER CATALYTIC REACTION CONDITIONS [J].

BAO, X ;

PETTINGER, B ;

ERTL, G ;

SCHLOGL, R .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1993, 97 (03) :322-325

[5] VARIATION OF THE MORPHOLOGY OF SILVER SURFACES BY THERMAL AND CATALYTIC ETCHING [J].

BAO, X ;

LEHMPFUHL, G ;

WEINBERG, G ;

SCHLOGL, R ;

ERTL, G .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1992, 88 (06) :865-872

[6] OXYGEN-INDUCED RESTRUCTURING OF AG(111) [J].

BAO, X ;

BARTH, JV ;

LEHMPFUHL, G ;

SCHUSTER, R ;

UCHIDA, Y ;

SCHLOGL, R ;

ERTL, G .

SURFACE SCIENCE, 1993, 284 (1-2) :14-22

[7] ON THE NATURE OF THE ACTIVE STATE OF SILVER DURING CATALYTIC-OXIDATION OF METHANOL [J].

BAO, X ;

MUHLER, M ;

PETTINGER, B ;

SCHLOGL, R ;

ERTL, G .

CATALYSIS LETTERS, 1993, 22 (03) :215-225

[8] THE CATALYTIC-OXIDATION OF METHANOL [J].

BAZILIO, CA ;

THOMAS, WJ ;

ULLAH, U ;

HAYES, KE .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1985, 399 (1816) :181-194

[9]

Bielanski A., 1991, OXYGEN CATALYSIS, P1

[10] OXYGEN INDUCED ADSORPTION AND REACTION OF H-2, H2O, CO AND CO2 ON SINGLE-CRYSTAL AG(110) [J].

BOWKER, M ;

BARTEAU, MA ;

MADIX, RJ .

SURFACE SCIENCE, 1980, 92 (2-3) :528-548

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