Structure and properties of SOFC electrode materials made from nanopowders

Abstract

SOFC composite materials were prepared from nanopowder mixtures of yttria stabilized zirconia - nickel oxide as anode and yttria stabilized zirconia - lanthanum manganite as cathode. The influence of particle size, pore former and sintering temperature on structure and properties of the electrode materials were investigated. The optimal conditions of full reduction of nickel oxide in anode materials were found. Anode material of 55 MPa strength and 38 % porosity was obtained. A SOFC single cell of obtained composite nanopowders was made and tested.