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

Tang, Deng-fang1; Chen, Xiao2; Guo, Qing2; Yang, Wen-shao1

2021-06-01

10.1063/1674-0068/cjcp2012221

化学物理学报   影响因子和分区

1674-0068

2327-2244

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).

Temperature programmed desorption TiO2(110) Bridge bonded oxygen vacancy Adsorption sites Surface defects

SCI ; EI

英语

其他

National Natural Science Foundation of China[21973084,21803056]

Physics

Physics, Atomic, Molecular & Chemical

WOS:000677545800002

CHINESE PHYSICAL SOC

20213010689698

Carbon monoxide ; Catalysis ; Catalysts ; Oxide minerals ; Oxygen ; Surface defects ; Temperature programmed desorption

Minerals:482.2 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Materials Science:951

Web of Science

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

Tang, Deng-fang,Chen, Xiao,Guo, Qing,et al. Effects of surface defects on adsorption of CO and methyl groups on rutile TiO2(110)[J]. 化学物理学报,2021,34(3):249-255.

Tang, Deng-fang,Chen, Xiao,Guo, Qing,&Yang, Wen-shao.(2021).Effects of surface defects on adsorption of CO and methyl groups on rutile TiO2(110).化学物理学报,34(3),249-255.

Tang, Deng-fang,et al."Effects of surface defects on adsorption of CO and methyl groups on rutile TiO2(110)".化学物理学报 34.3(2021):249-255.