Interaction of Anode and Electrolyte

The anode materials must be compatible with the electrolyte and transport oxygen ions from the electrolyte, and electrons from the interconnect and gas from the fuel. Nickel and YSZ cement are the most widely used anode materials due to their 

Strontium cobalt ferrites are good mixed conductors but are more suitable to be used as cathodes due to their p-type conduction. Pervoskite gaUates/niobates/barium cerate and chromium-doped lanthanum-strontium ferrite have also been studied as the anode material. Although the gaUates and niobates exhibit low conductivity, they exhibit good compatibihty with the LSGM electrolytes. The conductivity of yttrium-doped barium cerates increases by increasing yttrium content. For barium cerates, the increase in electronic conduction due to the reduction of cerium at low 

Jiang and co-workers gave the following reaction mechanism for the surface reactions on the YSZ surface. 

Brochu M, Gauntt BD, Shah R, Miyake G, Loehman RE (2006) J Eur Ceram Soc 26 3307 Chou YS, Stevenson JW, Gow RN (2007b) J Power Sources 170 395 

Chou YS, Thomsen EC, Williams RT, Choi JP, Canfield NL, Bonnett JF, Stevenson JW, Shyam A, Curzio EL (2011) J Power Sources 196 2709 Chou YS, Stevenson JW, Choi JP (2014b) J Power Sources 250 166 Fergus JW (2006a) J Power Sources 162 30 

---