scholarly journals Crystallization Kinetics of a Solid Oxide Fuel Cell Seal Glass

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
D. Mogensen ◽  
J.-D. Grunwaldt ◽  
P. V. Hendriksen ◽  
J. U. Nielsen ◽  
K. Dam-Johansen

The kinetics of catalytic steam reforming of methane over an Ni-YSZ anode of a solid oxide fuel cell (SOFC) have been investigated with the cell placed in a stack configuration. In order to decrease the degree of conversion, a single cell stack with reduced area was used. Measurements were performed in the temperature range 600–800°C and the partial pressures of all reactants and products were varied. The obtained rates could be well fitted with a power law expression (r ∝PCH40.7). A simple model is presented which is capable of predicting the methane conversion in a stack configuration from intrinsic kinetics of the anode support material. The predictions are compared with the stack measurements presented here, and good agreement is observed.


Author(s):  
Christoph Riedl ◽  
Matthäus Siebenhofer ◽  
Andreas Nenning ◽  
Gernot Friedbacher ◽  
Maximilian Weiss ◽  
...  

Accelerating the oxygen reduction kinetics of solid oxide fuel cell (SOFC) cathodes is crucial to improve their efficiency and thus to provide the basis for an economically feasible application of...


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