Surface electrochemistry of the anodic Cl2 evolution reaction at Pt. Influence of co-deposition of surface oxide species on adsorption of the Cl? intermediate

1990 ◽  
Vol 86 (6) ◽  
pp. 923 ◽  
Author(s):  
Brian E. Conway ◽  
Gu Ping
Keyword(s):  
Surface Oxide ◽  
Surface Electrochemistry ◽  
Cl2 Evolution

Development of Determination of Trace Oxygen in Steel after Removing Surface Oxide

2001 ◽  
Vol 87 (12) ◽  
pp. 756-761 ◽  
Author(s):  
Kiyotaka ITO ◽  
Masahiro KOIKE
Keyword(s):  
Surface Oxide

Basic Physics in Color-Coded EOS Metallization Failures (Differentiating between EOS and ESD)

1998 ◽  
Author(s):  
Leo G. Henry ◽  
J.H. Mazur
Keyword(s):  
Failure Analysis ◽  
Light Microscope ◽  
Structural Changes ◽  
Surface Oxide ◽  
Aluminum Surface ◽  
Surrounding Area ◽  
Die Surface ◽  
Basic Physics ◽  
Direct Contrast ◽  
Glass Interface

Abstract The task of differentiating precisely between EOS and ESD failures continues to be a challenging one for Failure Analysis Engineers. Electrical OverStress (EOS) failures on the die surface (burnt/fused metallization) of an IC can be characterized mainly by the discoloration at the site of the failures. This is in direct contrast to the lack of discoloration characteristic of ESD failures, which occur almost exclusively below the die surface (oxide and junction failures). To aid in this distinction, this paper attempts to present the underlying physics behind the discoloration produced in the EOS failures. For the EOS failures, the metal fuses due to the longer pulse widths (sec to msec), while for the ESD failures, the silicon melts because of the shorter pulse widths (< < 500 nsec) and higher energy. After EOS, the aluminum surface becomes dark and rough and the oxide in the surrounding area becomes deformed and distorted, resulting in the discoloration observed in the light microscope. This EOS discoloration could be due to one or more of the following: 1) morphological and structural changes at the metal/glass interface and the glass itself; 2) changes in the thickness and scattering behavior of the glass and metal in the failed areas.

Valency Changes in the Surface Oxide Films on Metals

1963 ◽  
Vol 110 (6) ◽  
pp. 680 ◽  
Author(s):  
H. S. Isaacs ◽  
J. S. Llewelyn Leach
Keyword(s):  
Oxide Films ◽  
Surface Oxide

scholarly journals How the anisotropy of surface oxide formation influences the transient activity of a surface reaction

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
P. Winkler ◽  
J. Zeininger ◽  
Y. Suchorski ◽  
M. Stöger-Pollach ◽  
P. Zeller ◽  
...  
Keyword(s):  
Hydrogen Oxidation ◽  
Surface Oxidation ◽  
Surface Reactivity ◽  
Surface Oxide ◽  
Surface Structures ◽  
Oxide Formation ◽  
Reaction Fronts ◽  
Transient Activity ◽  
Surface Oxide Formation ◽  
Stepped Surface

AbstractScanning photoelectron microscopy (SPEM) and photoemission electron microscopy (PEEM) allow local surface analysis and visualising ongoing reactions on a µm-scale. These two spatio-temporal imaging methods are applied to polycrystalline Rh, representing a library of well-defined high-Miller-index surface structures. The combination of these techniques enables revealing the anisotropy of surface oxidation, as well as its effect on catalytic hydrogen oxidation. In the present work we observe, using locally-resolved SPEM, structure-sensitive surface oxide formation, which is summarised in an oxidation map and quantitatively explained by the novel step density (SDP) and step edge (SEP) parameters. In situ PEEM imaging of ongoing H2 oxidation allows a direct comparison of the local reactivity of metallic and oxidised Rh surfaces for the very same different stepped surface structures, demonstrating the effect of Rh surface oxides. Employing the velocity of propagating reaction fronts as indicator of surface reactivity, we observe a high transient activity of Rh surface oxide in H2 oxidation. The corresponding velocity map reveals the structure-dependence of such activity, representing a direct imaging of a structure-activity relation for plenty of well-defined surface structures within one sample.

Characterization of microstructure and surface oxide of Ti1.2Fe hydrogen storage alloy

2021 ◽  
Vol 46 (24) ◽  
pp. 13082-13087
Author(s):  
Ki Beom Park ◽  
Tae-Wook Na ◽  
Young Do Kim ◽  
Jae-Young Park ◽  
Jang-Won Kang ◽  
...  
Keyword(s):  
Hydrogen Storage ◽  
Surface Oxide ◽  
Hydrogen Storage Alloy

scholarly journals Passivation-Induced Physicochemical Alterations of the Native Surface Oxide Film on 316L Austenitic Stainless Steel

2019 ◽  
Vol 166 (11) ◽  
pp. C3376-C3388 ◽  
Author(s):  
Zuocheng Wang ◽  
Francesco Di-Franco ◽  
Antoine Seyeux ◽  
Sandrine Zanna ◽  
Vincent Maurice ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Oxide Film ◽  
Surface Oxide ◽  
Surface Oxide Film ◽  
316L Austenitic Stainless Steel ◽  
Native Surface

Surface electrochemistry of truncated Cu2O octahedrons

2021 ◽  
pp. 124415
Author(s):  
Wenhao Gu ◽  
Fei Teng ◽  
Zhicheng Yang ◽  
Zhe Liu
Keyword(s):  
Surface Electrochemistry
Sign in / Sign up

Export Citation Format

Share Document