Study on SrNb-Oxide Cathode Material for Low-temperature Solid Oxide Fuel Cell

Abstract

In this paper, a novel semiconductor-ionic SrNb oxide (SNO)-Ce0.8Sm0.2O2-δ(SDC) composite has been prepared, characterized and developed as a membrane, which is sandwiched between two layers of Ni-foam coated with Ni0.8Co0.15Al0.05LiO2-δ(NCAL) to construct single layer fuel cell (SLFC, the branch of solid oxide fuel cell). Such a device presented an open circuit voltage (OCV) of 1.03V and maximum power density of 630 mW/cm2 at 550 °C when the mass ratio of SNO to SDC is 1:9. The feasible study of solid oxide in fuel cells will provide experimental and theoretical support for the development of SLFC technology.