Activation of H(2) oxidation at sulphur-exposed Ni surfaces under low temperature SOFC conditions.

@article{Deleebeeck2014ActivationOH,
  title={Activation of H(2) oxidation at sulphur-exposed Ni surfaces under low temperature SOFC conditions.},
  author={Lisa Carol Deleebeeck and Maxim Shishkin and Paul Addo and Scott Paulson and Hebert M Molero and Tom Ziegler and Viola I. Birss},
  journal={Physical chemistry chemical physics : PCCP},
  year={2014},
  volume={16 20},
  pages={
          9383-93
        }
}
Ni-YSZ (yttria-stabilized zirconia) cermets are known to be very good anodes in solid oxide fuel cells (SOFCs), which are typically operated at 700-1000 °C. However, they are expected to be increasingly degraded as the operating temperature is lowered in the presence of H2S (5-10 ppm) in the H2 fuel stream. However, at 500 to 600 °C, a temperature range rarely examined for sulphur poisoning, but of great interest for next generation SOFCs, we report that H2S-exposed Ni-YSZ anodes are catalytic… CONTINUE READING

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