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environments was investigated. The corrosion rate is higher under 'outlet' conditions at 700Β°C compared to standard conditions at 650Β°C and 'inlet' conditions at 600Β°C. The corrosion potential increases with time when a protective corrosion layer is formed. Eventually it reaches a more positive potential, close to the cathode operating potential. On Thermax 4762 steel, the corrosion layer grows relatively quickly in the first 48 h, then slows down when a protective layer is formed. The corrosion layer consists of an Fe-rich outer layer and a protective AI-and Cr-rich inner layer.
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The general topic of these articles is PEM fuel cell electrode materials. In this domain, a major contribution, which would be paramount for the future success of PEM fuel cell technology, is the development of new non-noble metal electrodes. However, at a current working temperature of 90 Β°C, this
## Abstract Preliminary results on Ptβbased electrocatalysts prepared with CMK3 mesoporous carbons are presented. The electroβcatalytic performance towards the oxygen reduction reaction (ORR) was compared to that of commercial Pt/CβVulcan catalysts with the same Pt content. Polarisation tests were