Electrolytes for Col SOEC & SOFC

The electrolyte sets the operating temperature, the conduction mechanism, and ultimately the cell architecture for solid oxide and protonic ceramic devices. This collection groups the ceramic electrolyte powders we stock for SOFC, SOEC, PCFC, and PCEC research — materials whose grain chemistry, sintering behavior, and dopant strategy you typically lock in before designing electrodes or interconnects.

We organize the powders by ion-conduction mechanism, since that single choice drives nearly every downstream decision (operating window, electrode compatibility, sealing, balance-of-plant).

Proton-conducting ceramics (low- and intermediate-temperature)

• BaZrO3-BaCeO3 solid solutions (BZCY / BZCYYb) — perovskite-structured acceptor-doped barium zirconate-cerates. Co-doping with Y and Yb on the B-site balances the high proton conductivity of cerates against the chemical stability of zirconates in CO2- and H2O-rich atmospheres, which is why this family has become the workhorse for protonic ceramic fuel and electrolysis cells operating in the 400-600 C range.
• Use these when you want sub-700 C operation, dry hydrogen on the fuel side, and steam tolerance on the air or steam side.

Oxide-ion conductors (intermediate- and high-temperature)

• Yttria-stabilized and scandia-stabilized zirconias — fluorite-structured oxide-ion conductors that remain the reference electrolyte for conventional SOFC and high-temperature SOEC stacks above ~700 C.
• Doped ceria (GDC, SDC) — fluorite-type intermediate-temperature electrolytes and barrier layers; commonly paired with zirconia to block reactivity with cobaltite cathodes.
• LSGM (lanthanum strontium gallate magnesite) — perovskite oxide-ion conductor for IT-SOFC work where higher conductivity than GDC is needed without dropping into mixed conduction.

Powders ship as calcined precursors suitable for tape casting, screen printing, or pressing-and-sintering into dense electrolyte membranes; particle-size and surface-area data live on each product page.

If you are building a protonic ceramic cell, start with the BZCY / BZCYYb entries; for classical high-temperature SOFC or SOEC, begin with the zirconia and doped-ceria families. For matched electrode powders see Cathodes for SOEC & SOFC and Anodes for SOEC & SOFC; for the broader stack context see SOEC & SOFC.