DISSOCIATIVE CHEMISORPTION AND LOCALIZED OXIDATION-STATES AT TITANIUM SURFACES

被引：18

作者：

CARLEY, AF

ROBERTS, JC

ROBERTS, MW

机构：

[1] School of Chemistry and Applied Chemistry, College of Cardiff, University of Wales, Cardiff, CF1 3TB

来源：

SURFACE SCIENCE | 1990年 / 225卷 / 03期

关键词：

D O I：

10.1016/0039-6028(90)90441-A

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：

Dissociative chemisorption of carbon monoxide and nitric oxide is shown to result in the formation of discrete localised oxidation states of titanium; Ti2+ with CO and Ti2+ and Ti3+ with NO. The results are compared with dioxygen (Ti2+, Ti3+ and Ti4+). A correlation is shown to exist between the extent of dissociative chemisorption i.e. overlayer growth and the emergence in a step-wise manner of Ti2+, Ti3+ and Ti4+. Attention is drawn to the significance of the Madelung energy in determining the oxidation states generated within the overlayer by this molecule-specific process. © 1990.

引用

页码：L39 / L41

页数：3

共 2 条

[1] SURFACE REACTIVITY AS REVEALED BY PHOTOELECTRON-SPECTROSCOPY [J].

AU, CT ;

CARLEY, AF ;

ROBERTS, MW .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1986, 318 (1541) :61-79

[2] THE IDENTIFICATION AND CHARACTERIZATION OF MIXED OXIDATION-STATES AT OXIDIZED TITANIUM SURFACES BY ANALYSIS OF X-RAY PHOTOELECTRON-SPECTRA [J].

CARLEY, AF ;

CHALKER, PR ;

RIVIERE, JC ;

ROBERTS, MW .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1987, 83 :351-370

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