Fig. 4: Investigation on stability and degradation mechanism in NH3-fed PCFC.
From: Ammonia-fed reversible protonic ceramic fuel cells with Ru-based catalyst
a Stability test for NH3-fed PCFC with and without Ru-B2CA catalyst. b, c SEM images of as sintered BCZYYb (with 1 wt% NiO added via solid state reaction synthesis process) and after H2 reduction, respectively. d–f, BCZYYb (with 1 wt% NiO) after non-cracked NH3 reduction at different magnification and grains boundaries. g–i SEM images of as sintered NiO, after H2 reduction and after non-cracked NH3 reduction, respectively.
