High Efficiency Direct Ammonia Type Fuel Cells based on BaZr_xCe_(0.8-X)Y_(0.2)O_3/Pd Oxide-Metal Junctions

摘要

Hydrogen membrane fuel cells, HMFC, were fabricated by RF sputtering deposition of BaZr_(0.1)Ce_(0.7)Y_(0.2)O_(3-δ) thin films on Pd solid anode. The HMFC can give OCV of 1.0 V and peak power density of 0.8 W cm~(-2) at 600°C by using H_2 fuels. The direct NH_3 fueled HMFC reveals OCV of 0.92 V and peak power density of 0.58 W cm~(-2) at 600°C. These performances are superior to the best data of direct ammonia PCFC.