Development of the high-temperature redox electrode and improved corrosion rate meter. Interim report for period ending September 1980

Autor:	M.J. Danielson, O.H. Koski
Rok vydání:	1981
Předmět:	chemistry.chemical_classification Materials science Working electrode Brine chemistry Sulfide Metallurgy chemistry.chemical_element Platinum Oxygen Redox Potentiostat Corrosion
DOI:	10.2172/6266854
Popis:	The oxidation-reduction (redox) electrode studies at Pacific Northwest Laboratory (PNL) were completed with the examination of the sulfide-sulfate system. This system is extremely reducing, and it was concluded that the redox electrode would still respond to the entry of oxygen even though sulfide is an oxygen getter. The corrosion rate of platinum in oxygenated brine was determined at 250/sup 0/C. It was concluded that the mechanism of response to oxygen fits a mixed potential model. Work began on the improved corrosion rate meter (ICR). A potentiostat and programmer were constructed and successfully tested. Corrosion tests were carried out in 25/sup 0/C brine with and without oxygen, and the ICR response was very good when compared to corrosion rates determined by weight loss. Future work will involve autoclave tests and development of microprocessor control of the electronics to simplify the measurements.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5920aa15cfc4fa02383a7d4aceb4b1bd https://doi.org/10.2172/6266854 Zobrazit plný text záznamu