Yttria-Doped Ceria Surface Modification Layer via Atomic Layer Deposition for Low-Temperature Solid Oxide Fuel Cells

Atomic layer deposition (ALD) is performed to obtain less than 1 nm thick yttria-doped ceria (YDC) layers as cathode functional increase the surface oxygen incorporation rate for low-temperature solid oxide fuel cells (LT-SOFCs). Introducing a YDC modification (SML) has revealed that optimized yttria concentration in can catalyze exchange kinetics at interface between electrolyte and cathode. The SML-containing cell performs 1.5 times better pristine cell; result an increased current density modified surface. Moreover, heavily doped SML degrades performance of LT-SOFCs, owing weakened due migration energy ions.