@inbook{38661,
  keywords = {baceo3, electrolyte, proton},
  author = {Mona Bavarian and Masoud Soroush and Ioannis Kevrekidis and Jay Benziger},
  title = {Mathematical Modeling and Steady-State Analysis of a Co-Ionic-Conducting Solid Oxide Fuel Cell},
  abstract = { <p>A mathematical model of a solid oxide fuel cell (SOFC) with a BaCe1-xSmxO3-alpha type electrolyte is developed. This class of electrolytes exhibits both proton and oxygen-anion conductivity. To develop the model, heat transfer, mass transfer and electrochemical processes are taken into account. The existence of steady-state multiplicity in this class of fuel cells is investigated under three operation modes: constant ohmic load, potentiostatic and galavanostatic. The cell has up to three steady states under the constant ohmic load and potentiostatic modes, and a unique steady state under the galvanostatic mode. This same steady state behavior has been observed in oxygen-anion conducting and proton conducting SOFCs. Interestingly, this study shows that in this class of SOFCs, thermal and concentration multiplicities can coexist; ignition in the solid temperature is accompanied by extinction in the fuel and oxygen concentrations, and ignition and extinction in concentrations of water in the anode and cathode sides, respectively.</p> },
  year = {2012},
  journal = {2012 American Control Conference (acc)},
  pages = {4269-4274},
  publisher = {Ieee Computer Soc},
  address = {Los Alamitos},
  isbn = {978-1-4577-1096-4},
  language = {English},
}