Interaction of iron with a wagon wheel-like ultrathin TiOx film grown on Pt(111)

被引：2
作者：
Artiglia, Luca [1 ]
Cavaliere, Emanuele [2 ,3 ]
Gavioli, Luca [2 ,3 ]
Rizzi, Gian Andrea [1 ]
机构：
[1] Univ Padua, Dept Chem Sci, I-35131 Padua, Italy
[2] Catholic Univ, I LAMP, I-25121 Brescia, Italy
[3] Catholic Univ, Dept Math & Phys, I-25121 Brescia, Italy
来源：
PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2015年 / 17卷 / 27期
关键词：
METAL-SUPPORT INTERACTION; CO ADSORPTION; OXIDE-FILM; NANOPARTICLES; SURFACE; AU; FE; TIOX/PT(111); RESOLUTION; CATALYSIS;
D O I：
10.1039/c5cp01931a
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：
The structure and thermal evolution of Fe nanoparticles deposited on a wetting TiOx ultrathin film epitaxially grown on Pt(111) has been characterized by various surface science techniques. Combining the results obtained it is shown that, at room temperature, metallic Fe nucleates randomly and oxidizes at the interface. A thermal treatment causes Fe migration through the TiOx layer, forming a mixed oxide and a new hexagonal ultrathin film phase. Finally, the pristine TiOx phase motif is restored, due to the complete diffusion of Fe into the Pt substrate.
引用
收藏
页码：18055 / 18062
页数：8
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