Corrosion

Startup/Shutdown Degradation in Fuel Cells

February 20, 2019

One of the critical challenges facing fuel cells is degradation of the catalyst/support structure. A major mechanism of degradation is air/air (cathode/anode) startup/shutdown (SU/SD) degradation. Over time it can lead to significant corrosion of the carbon support structure, which in turn can lead to a loss of porosity of the catalyst layer, as well as …

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Article Summary: “The Corrosion of Carbon Black Anodes in Alkaline Electrolyte: I. Acetylene Black and the Effect of Cobalt Catalyzation” (1984)

January 30, 2019

The referenced article by Ross and Sokol in the Journal of the Electrochemical Society can be found here. In the article, the authors study the corrosion of carbon black in an alkaline system. Specifically, they use an electrode made from acetylene black which has been labelled using carbon-14 (14C), along with mass spectroscopy to determine the current efficiencies of …

Article Summary: “The Corrosion of Carbon Black Anodes in Alkaline Electrolyte: I. Acetylene Black and the Effect of Cobalt Catalyzation” (1984) Read More »