A study of the failure mechanism of chlorine anodes

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Thin coating RuO{sub 2}{minus}TiO{sub 2} electrodes, which mimic the DSA anodes, have been prepared and tested for their activity toward the chlorine evolution reaction and subjected to life time testing. Rutherford Backscattering Spectrometry has been used concurrently with electrochemical measurements to analyze changes in the ruthenium content of the coating. The decrease in electrode activity is found to be closely related to a decrease in Ru content, and the measured profiles indicate that the loss takes place across the thin coating. Failure is observed for electrodes with a Ru content below a critical concentration, but there is no evidence for ... continued below

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30 p.

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Vallet, C.E.; Zuhr, R.A.; Tilak, B.V. & Chen, C.P. December 31, 1995.

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Description

Thin coating RuO{sub 2}{minus}TiO{sub 2} electrodes, which mimic the DSA anodes, have been prepared and tested for their activity toward the chlorine evolution reaction and subjected to life time testing. Rutherford Backscattering Spectrometry has been used concurrently with electrochemical measurements to analyze changes in the ruthenium content of the coating. The decrease in electrode activity is found to be closely related to a decrease in Ru content, and the measured profiles indicate that the loss takes place across the thin coating. Failure is observed for electrodes with a Ru content below a critical concentration, but there is no evidence for the build up of a pure TiO{sub 2} layer. AFM imaging of an anode after failure sustained the hypothesis of loss of material.

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30 p.

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OSTI as DE96003777

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  • 187. meeting of the Electrochemical Society, Reno, NV (United States), 21-26 May 1995

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  • Other: DE96003777
  • Report No.: CONF-950518--17
  • Grant Number: AC05-84OR21400
  • Office of Scientific & Technical Information Report Number: 174375
  • Archival Resource Key: ark:/67531/metadc671130

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  • December 31, 1995

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  • June 29, 2015, 9:42 p.m.

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  • Jan. 21, 2016, 12:39 p.m.

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Vallet, C.E.; Zuhr, R.A.; Tilak, B.V. & Chen, C.P. A study of the failure mechanism of chlorine anodes, article, December 31, 1995; Tennessee. (digital.library.unt.edu/ark:/67531/metadc671130/: accessed August 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.