Interplay between Subsurface Ordering, Surface Segregation, and Adsorption on Pt–Ti(111) Near-Surface Alloys

Langmuir ◽  
2012 ◽  
Vol 28 (10) ◽  
pp. 4683-4693 ◽  
Author(s):  
Wei Chen ◽  
P. Dalach ◽  
William F. Schneider ◽  
C. Wolverton
Keyword(s):  
Surface Segregation ◽  
Surface Alloys ◽  
Near Surface

Near-Surface Aggregation of Sn In Heavily Sn-Doped GaAs Films Grown By Molecular Beam Epitaxy

1985 ◽  
Vol 43 ◽  
pp. 368-369
Author(s):  
S. H. Chen
Keyword(s):  
Molecular Beam Epitaxy ◽  
Cross Section ◽  
Electron Spectroscopy ◽  
Molecular Beam ◽  
Surface Segregation ◽  
Secondary Ion Mass Spectrometry ◽  
Specimen Preparation ◽  
Near Surface ◽  
Gaas Films ◽  
Secondary Ion

Sn has been used extensively as an n-type dopant in GaAs grown by molecular-beam epitaxy (MBE). The surface accumulation of Sn during the growth of Sn-doped GaAs has been observed by several investigators. It is still not clear whether the accumulation of Sn is a kinetically hindered process, as proposed first by Wood and Joyce, or surface segregation due to thermodynamic factors. The proposed donor-incorporation mechanisms were based on experimental results from such techniques as secondary ion mass spectrometry, Auger electron spectroscopy, and C-V measurements. In the present study, electron microscopy was used in combination with cross-section specimen preparation. The information on the morphology and microstructure of the surface accumulation can be obtained in a fine scale and may confirm several suggestions from indirect experimental evidence in the previous studies.

Stability of Pt near surface alloys under electrochemical conditions: a model study

2014 ◽  
Vol 16 (31) ◽  
pp. 16615-16622 ◽  
Author(s):  
Xiaoming Zhang ◽  
Shansheng Yu ◽  
Weitao Zheng ◽  
Ping Liu
Keyword(s):  
Fuel Cell ◽  
Automotive Applications ◽  
Surface Alloys ◽  
Near Surface ◽  
Model Study ◽  
The Stability

The stability is one of the key requirements for commercializing the fuel cell electrocatalysts in automotive applications.

scholarly journals Steam reforming of methanol on PdZn near-surface alloys on Pd(111) and Pd foil studied by in-situ XPS, LEIS and PM-IRAS

2010 ◽  
Vol 276 (1) ◽  
pp. 101-113 ◽  
Author(s):  
Christoph Rameshan ◽  
Christian Weilach ◽  
Werner Stadlmayr ◽  
Simon Penner ◽  
Harald Lorenz ◽  
...  
Keyword(s):  
Steam Reforming ◽  
Surface Alloys ◽  
Near Surface ◽  
Steam Reforming Of Methanol ◽  
In Situ Xps

scholarly journals Inside Cover: Design of an Active Site towards Optimal Electrocatalysis: Overlayers, Surface Alloys and Near-Surface Alloys of Cu/Pt(111) (Angew. Chem. Int. Ed. 47/2012)

2012 ◽  
Vol 51 (47) ◽  
pp. 11642-11642 ◽  
Author(s):  
Aliaksandr S. Bandarenka ◽  
Ana Sofia Varela ◽  
Mohammedreza Karamad ◽  
Federico Calle-Vallejo ◽  
Lone Bech ◽  
...  
Keyword(s):  
Active Site ◽  
Surface Alloys ◽  
Near Surface ◽  
Cover Design

SOLUTE REDISTRIBUTION DURING CORROSION OF TITANIUM-PLATINUM NEAR-SURFACE ALLOYS

1982 ◽  
pp. 97-101 ◽  
Author(s):  
B.D. Lichter ◽  
N.G. Thompson ◽  
B.R. Appleton ◽  
E.J. Kelly
Keyword(s):  
Solute Redistribution ◽  
Surface Alloys ◽  
Near Surface

Design of an Active Site towards Optimal Electrocatalysis: Overlayers, Surface Alloys and Near-Surface Alloys of Cu/Pt(111)

2012 ◽  
Vol 124 (47) ◽  
pp. 12015-12018 ◽  
Author(s):  
Aliaksandr S. Bandarenka ◽  
Ana Sofia Varela ◽  
Mohammedreza Karamad ◽  
Federico Calle-Vallejo ◽  
Lone Bech ◽  
...  
Keyword(s):  
Active Site ◽  
Surface Alloys ◽  
Near Surface

Near-surface segregation in irradiated Ni3Si

1982 ◽  
Vol 45 (6) ◽  
pp. 957-972 ◽  
Author(s):  
W. Wagner ◽  
L. E. Rehn ◽  
H. Wiedersich
Keyword(s):  
Surface Segregation ◽  
Near Surface
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