Formation and Dissolution of Platinum Oxide Film: Mechanism and Kinetics

1963 ◽  
Vol 110 (7) ◽  
pp. 826 ◽  
Author(s):  
S. W. Feldberg ◽  
C. G. Enke ◽  
C. E. Bricker
Keyword(s):  
Oxide Film ◽  
Platinum Oxide ◽  
Mechanism And Kinetics

Mechanism and kinetics of thin zirconium and hafnium oxide film growth in an ALD reactor

2004 ◽  
Vol 549 (1) ◽  
pp. 67-86 ◽  
Author(s):  
Maxim Deminsky ◽  
Andrei Knizhnik ◽  
Ivan Belov ◽  
Stanislav Umanskii ◽  
Elena Rykova ◽  
...  
Keyword(s):  
Oxide Film ◽  
Hafnium Oxide ◽  
Film Growth ◽  
Mechanism And Kinetics ◽  
Kinetics Of

Preparation and electrocatalytic property of three‐dimensional nano‐dendritic platinum oxide film

2022 ◽  
Author(s):  
Yue Shen ◽  
Sixie Li ◽  
Chuanjun Wang ◽  
Yanting Xu ◽  
Yunxiu Chao ◽  
...  
Keyword(s):  
Oxide Film ◽  
Three Dimensional ◽  
Platinum Oxide ◽  
Electrocatalytic Property

Chemical and Crystal Characterization of the Oxide Film Formed in 304L SS Under Autoclave Conditions, With and Without Crevice Formation

2015 ◽  
Vol 1769 ◽  
Author(s):  
Ángeles Díaz Sánchez ◽  
Aida Contreras Ramírez ◽  
Carlos Arganis Juárez
Keyword(s):  
Oxide Film ◽  
Nuclear Industry ◽  
Film Rupture ◽  
Active Dissolution ◽  
Dissolution Model ◽  
Mechanism And Kinetics ◽  
The Difference ◽  
Crystal Characterization ◽  
Kinetics Of

ABSTRACTThe principles of Stress Corrosion Cracking (SCC) are supported in the behavior of the oxide film formed into a crack; in fact the active dissolution of metal atoms after a film rupture and until fill repassivation is the base of slip dissolution model which is a good model to justified the crack tip advance in stainless steels (SS) used in vessel internal components for the nuclear industry. This paper shows the analyzed made at the oxide film formed on samples of 304L SS sensitized and non sensitized, under autoclave conditions (288°C, 8MPa) with and without crevice geometric formation, using SEM, XRD and Raman Spectra.The crevice and no crevice condition allow establish the difference of an oxide formed on a free surface (no crevice) and the oxide formed on the wall in a crack (crevice); the chemical and physical properties of oxide film can alter the mechanism and kinetics of SCC process, so the difference between these two conditions will give more information about the behavior of the oxide film.

Deposited emulsion particles in the pores of aluminum oxide film

1978 ◽  
Vol 36 (1) ◽  
pp. 450-451
Author(s):  
Michio Ashida ◽  
Yasukiyo Ueda
Keyword(s):  
Oxide Film ◽  
Acid Solution ◽  
Barrier Layer ◽  
Colloidal Particles ◽  
Oxalic Acid Solution ◽  
Anodic Oxide ◽  
Anodic Oxide Film ◽  
Carbon Replica ◽  
Sectioning Method ◽  
Thin Sectioning

An anodic oxide film is formed on aluminum in an acidic elecrolyte during anodizing. The structure of the oxide film was observed directly by carbon replica method(l) and ultra-thin sectioning method(2). The oxide film consists of barrier layer and porous layer constructed with fine hexagonal cellular structure. The diameter of micro pores and the thickness of barrier layer depend on the applying voltage and electrolyte. Because the dimension of the pore corresponds to that of colloidal particles, many metals deposit in the pores. When the oxide film is treated as anode in emulsion of polyelectrolyte, the emulsion particles migrate onto the film and deposit on it. We investigated the behavior of the emulsion particles during electrodeposition.Aluminum foils (99.3%) were anodized in either 0.25M oxalic acid solution at 30°C or 3M sulfuric acid solution at 20°C. After washing with distilled water, the oxide films used as anode were coated with emulsion particles by applying voltage of 200V and then they were cured at 190°C for 30 minutes.

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