Effects of surface defects on adsorption of CO and methyl groups on rutile TiO2(110)

被引：0

作者：

Tang, Deng-fang ^{[1
]}

Chen, Xiao ^{[2
]}

Guo, Qing ^{[2
]}

Yang, Wen-shao ^{[1
]}

机构：

[1] Zhejiang Normal Univ, Hangzhou Inst Adv Studies, Hangzhou 311231, Peoples R China

[2] Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China

来源：

CHINESE JOURNAL OF CHEMICAL PHYSICS | 2021年 / 34卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Temperature programmed desorption; TiO2(110); Bridge bonded oxygen vacancy; Adsorption sites; Surface defects; METHANOL PHOTOCHEMISTRY; ELECTRON-SPECTROSCOPY; 1ST PRINCIPLES; POINT-DEFECTS; TIO2; SURFACES; CHEMISTRY; OXYGEN; SITES; WATER; PHOTOCATALYSIS;

D O I：

10.1063/1674-0068/cjcp2012221

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The interaction of reactants with catalysts has always been an important subject for catalytic reactions. As a promising catalyst with versatile applications, titania has been intensively studied for decades. In this work we have investigated the role of bridge bonded oxygen vacancy (O-v) in methyl groups and carbon monoxide (CO) adsorption on rutile TiO2(110) (R-TiO2(110)) with the temperature programmed desorption technique. The results show a clear different tendency of the desorption of methyl groups adsorbed on bridge bonded oxygen (O-b), and CO molecules on the five coordinate Ti4+ sites (Ti-5c) as the O-v concentration changes, suggesting that the surface defects may have crucial influence on the absorption of species on different sites of R-TiO2(110).

引用

页码：249 / 255

页数：7

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