✦ LIBER ✦
Cathodic Reactions Involved in Corrosion Processes Occurring in Concentrated Nitric Acid at 100 °C
✍ Scribed by Fanny Balbaud; Gérard Sanchez; Gérard Santarini; Gérard Picard
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 436 KB
- Volume
- 2000
- Category
- Article
- ISSN
- 1434-1948
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✦ Synopsis
In order to explain and analyze the corrosion process of AISI 304 L stainless steel in the presence of nitric acid condensates, the reduction mechanism of nitric acid was studied on a platinum electrode in various nitric acid solutions (4 mol⋅L -1 , 8 mol⋅L -1 and 12 mol⋅L -1 ) at 100 °C. Classical electrochemical techniques were used: cyclic voltammetry, chronoamperometry on a stationary electrode as well as on a rotating disk electrode. A reduction mechanism is proposed; this mechanism is autocatalytic and involves a charge-trans- [a] CEA -CEREM,