Calculation of Oxygen Surface Diffusion on Bulk Oxygen
Ion Conductors
EMSL Project ID
24290
Abstract
Fuel cell activation losses are directly related to the area of the Triple PhaseBoundary, the electrochemically active area. In a solid oxide fuel cell, oxygen
atoms adsorbed on the electrolyte surface may diffuse on the surface and, if they
are within the TPB area, may react to enter the solid oxide electrolyte, most
commonly yttria stabilized zirconia (YSZ). Therefore, oxygen surface diffusion
may be an important step in the fuel cell kinetics. Due to the difficulty of
experimentally measuring oxygen surface diffusion, we propose to calculate the
surface diffusion of oxygen on YSZ with quantum simulations.
Project Details
Project type
Large-Scale EMSL Research
Start Date
2007-05-23
End Date
2008-09-17
Status
Closed
Released Data Link
Team
Principal Investigator
Team Members