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Controlled Transformation of the Structures of Surface Fe (FeO) and Subsurface Fe on Pt(111)
Ma Teng; Fu Qiang; Cui Yi; Zhang Zhen; Wang Zhen; Tan Dali; Bao Xinhe
关键词Bimetallic Catalyst Oxide Platinum-skin Inverse Model System
刊名CHINESE JOURNAL OF CATALYSIS
2010
DOI10.1016/S1872-2067(09)60037-1
31期:1页:24-32
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]BIMETALLIC SURFACES ; ELECTRONIC-STRUCTURE ; SELECTIVE OXIDATION ; ALLOY SURFACES ; GROWTH ; CO ; FILMS ; IRON ; CATALYSTS ; STM
英文摘要Monolayer Fe films on Pt(111) and their derived structures under different environments were investigated by scanning tunneling microscopy (STM) and X-ray photoelectron spectroscopy (XPS). The growth of monolayer Fe films was seen at 487 K. The surface composition and structure of the Fe/Pt(111) surface were monitored by XPS and STM during stepwise annealing under vacuum. Surface Fe was driven into the subsurface region during annealing above 800 K. This resulted in a Pt-skin surface of Pt/Fe/Pt(111). Oxidation of the Pt-skin structure in O(2) produced a FeO surface structure, FeO/Pt(111). This was transformed into a Surface Fe structure by mild reduction in H(2) (600 K) and into subsurface Fe by further severe reduction (800 K). The transformation of surface Fe (FeO) and subsurface Fe in Pt(111) was reversible in cycled oxidation and reduction treatments. The results demonstrated the controlled preparation of various Fe-Pt surfaces. This can be important for the design of high-performance and low-cost catalysts.
语种英语
WOS记录号WOS:000274753100005
引用统计
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/142232
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China
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Ma Teng,Fu Qiang,Cui Yi,et al. Controlled Transformation of the Structures of Surface Fe (FeO) and Subsurface Fe on Pt(111)[J]. CHINESE JOURNAL OF CATALYSIS,2010,31(1):24-32.
APA Ma Teng.,Fu Qiang.,Cui Yi.,Zhang Zhen.,Wang Zhen.,...&Bao Xinhe.(2010).Controlled Transformation of the Structures of Surface Fe (FeO) and Subsurface Fe on Pt(111).CHINESE JOURNAL OF CATALYSIS,31(1),24-32.
MLA Ma Teng,et al."Controlled Transformation of the Structures of Surface Fe (FeO) and Subsurface Fe on Pt(111)".CHINESE JOURNAL OF CATALYSIS 31.1(2010):24-32.
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