Anodic Copper Oxidation in Alkaline Mediums with α-Alanine and Asparagine Acid Additives
| Autor: | Ekaterina Skrypnikova, Svetlana Kaluzhina, Jlia Kosareva, Eugenia Orlova |
|---|---|
| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | ECS Transactions. 2:193-201 |
| ISSN: | 1938-6737 1938-5862 |
| DOI: | 10.1149/1.2408938 |
| Popis: | It was investigated α-alanine and asparagine acid influence on copper anodic process kinetics in alkaline electrolytes. The experiments were carried out at two systems: I - 0.01 M NaOH +X M α-Ala (X=10-4/10-1 M) and II - 0.01 M NaOH +X M Asp (X=10- 5/10-3 M). It was found out that α-alanine (from СAla= 5*10-3 М to 2*10-2 М) and asparagine acid (from СAsp=1*10-5 to 1*10-3 М) stimulate anodic processes at passive region and cause of metal local activation. However except this general regularity, the individual singularity at both systems were found out: at the I system local activation develops under ЕLA=0.10-0.20 V, at the II system two local activation potentials were identified Е1LA=0,23-0,34 V and Е2LA =0.70-0.85 V, which were divided by repassivation region. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|