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Chromium electrodes for REDOX cellsAn improved electrode having a gold coating for use in the anode compartment of a REDOX cell is described. The anode fluid utilizes a chromic/chromous couple. A carbon felt is soaked in methanol, rinsed in water, dried and then heated in KOH after which it is again washed in deionized water and dried. The felt is then moistened with a methanol water solution containing chloroauric acid and is stored in a dark place while still in contact with the gold-containing solution. After all the gold-containing solution is absorbed in the felt, the latter is dried by heat and then heat treated at a substantially greater temperature. The felt is then suitable for use as an electrode and is wetted with water or up to two molar HCl prior to installation in a REDOX cell. The novelty of the invention lies in the use of KOH for cleaning the felt and the use of alcohol as a carrier for the gold together with the heat treating procedure.
Document ID
19840020136
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Jalan, V. (NASA Lewis Research Center Cleveland, OH, United States)
Reid, M. A. (NASA Lewis Research Center Cleveland, OH, United States)
Charleston, A. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
June 19, 1984
Subject Category
Energy Production And Conversion
Accession Number
84N28205
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-LEW-13653-1|US-PATENT-4,454,649
Patent Application
US-PATENT-APPL-SN-352821

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