Unexpected adsorption of oxygen on TiO2 nanotube arrays:: Influence of crystal structure

被引：73

作者：

Funk, S.

Hokkanen, B.

Burghaus, U. ^{[1
]}

Ghicov, A.

Schmuki, P.

机构：

[1] N Dakota State Univ, Dept Chem, Fargo, ND 58105 USA

[2] Univ Erlangen Nurnberg, Dept Mat Sci, Erlangen, Germany

来源：

NANO LETTERS | 2007年 / 7卷 / 04期

关键词：

D O I：

10.1021/nl062797j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We present kinetics data of O-2, n/iso-butane, CO2, and CO adsorbed at ultrahigh vacuum conditions on TiO2 nanotube (TiNTs) arrays produced by electrochemical anodization; amorphous and polycrystalline (anatase and mixed anatase/rutile) TiNTs have been studied addressing structure-activity relationships. Oxygen distinctly interacts with the TiNTs, whereas this process is not observed on fully oxidized TiO2 single crystals. Both molecularly and atomically bonded oxygen have been observed. Variations in the binding energies of alkanes were also detected.

引用

页码：1091 / 1094

页数：4

共 33 条

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