Prediction of Influence of Oxygen in Annealing Atmosphere on Surface Segregation Behavior in Layered Materials

2012 ◽  
Vol 51 ◽  
pp. 085601 ◽  
Author(s):  
Michiko Yoshitake
Keyword(s):  
Surface Segregation ◽  
Layered Materials ◽  
Annealing Atmosphere ◽  
Segregation Behavior

Oxidation and Surface Segregation Behavior of a Pt–Pd–Rh Alloy Catalyst

2014 ◽  
Vol 118 (45) ◽  
pp. 26130-26138 ◽  
Author(s):  
Paul A. J. Bagot ◽  
Karen Kruska ◽  
Daniel Haley ◽  
Xavier Carrier ◽  
Eric Marceau ◽  
...  
Keyword(s):  
Surface Segregation ◽  
Segregation Behavior ◽  
Alloy Catalyst

Different Hydrogen Bond Changes Driven by Surface Segregation Behavior of Imidazolium-Based Ionic Liquid Mixture at the Liquid–Vacuum Interface

Langmuir ◽  
2020 ◽  
Vol 36 (40) ◽  
pp. 11798-11808
Author(s):  
Deshuai Yang ◽  
Yiping Huang ◽  
Xueping Wang ◽  
Ruiyao He ◽  
Guobing Zhou ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Ionic Liquid ◽  
Surface Segregation ◽  
Liquid Mixture ◽  
Segregation Behavior ◽  
Vacuum Interface

Oxygen surface exchange properties and surface segregation behavior of nanostructured La0.6Sr0.4Co0.2Fe0.8O3−δ thin film cathodes

2019 ◽  
Vol 21 (13) ◽  
pp. 7183-7195 ◽  
Author(s):  
K. Develos-Bagarinao ◽  
J. De Vero ◽  
H. Kishimoto ◽  
T. Ishiyama ◽  
K. Yamaji ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Surface Segregation ◽  
Oxygen Exchange ◽  
Surface Exchange ◽  
Segregation Behavior ◽  
Oxygen Surface Exchange ◽  
Exchange Properties ◽  
Oxygen Surface

Nanostructured LSCF thin films with more enhanced oxygen exchange properties also show a higher tendency to surface segregation.

Detection of Near-Surface 52Cr Segregation in Irradiated 51V(Cr) By Rbs

1986 ◽  
Vol 82 ◽  
Author(s):  
L. E. Rehn ◽  
P. M. Baldo
Keyword(s):  
Surface Layer ◽  
Surface Segregation ◽  
Elevated Temperatures ◽  
High Sensitivity ◽  
Near Surface ◽  
Segregation Behavior

ABSTRACTIrradiation at elevated temperatures of V(Cr) alloys is known to create a near-surface layer of nonequilibrium Cr enrichment. Highly reproducible RBS spectra were accumulated from a V-15%Cr alloy irradiated at 750°C, and from unirradiated portions of the same specimen. Differences between these spectra are used to demonstrate the high sensitivity of conventional RBS techniques for determining near-surface segregation behavior. Sensitivities obtained utilizing differences in the acquired spectra are much higher than those typically assumed for RBS measurements. Using 1.8 MeV 4He, and conventional RBS equipment and scattering geometries, segregation of < two atomic layers of 52Cr in 51V- 15at.%Cr over a depth of ∼5 nm has been observed.

Annealing effect on surface segregation behavior of hydroxypropylcellulose/polyethylenimine blend films

2009 ◽  
Vol 255 (17) ◽  
pp. 7703-7707 ◽  
Author(s):  
Gamze Şengül ◽  
Serkan Demirci ◽  
Süleyman Çörekçi ◽  
Tuncer Caykara
Keyword(s):  
Surface Segregation ◽  
Annealing Effect ◽  
Blend Films ◽  
Segregation Behavior

Tuning the surface segregation composition of a PdCo alloy by the atmosphere for increasing electrocatalytic activity

2020 ◽  
Vol 4 (1) ◽  
pp. 380-386
Author(s):  
Tongtong Li ◽  
Rong Wang ◽  
Minghe Yang ◽  
Shuaishuai Zhao ◽  
Zhijie Li ◽  
...  
Keyword(s):  
Electrocatalytic Activity ◽  
Surface Segregation ◽  
Surface Composition ◽  
Electrochemical Etching ◽  
High Index ◽  
Annealing Atmosphere

The surface composition of PdCo alloy was tuned by the annealing atmosphere. By electrochemical etching Co atoms, the alloy with Pd-rich surfaces was rearranged with abundant high-index facets, which leads to an enhanced HER performance.

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