Ammonia as a carrier for hydrogen production by using lanthanum based perovskites

LaNiO3 and LaCoO3 perovskites synthesized by self-combustion were characterised studied in the ammonia decomposition reaction for obtaining hydrogen. Both fuel to metal nitrates molar ratio calcination temperature found be crucial synthesize self-combustion. Moreover, generating non-precursor species during synthesis small size two factors which significantly influenced catalytic activity. Hence, with a citric acid equal one perovskite was obtained suitable physicochemical properties (specific surface area, lower impurities, basicity). In addition, (650 °C) resulted well-dispersed Ni0 crystallite after reduction, turn, promoted transformation of into For cobalt perovskites, below 900 °C did not have significant influence on metallic size. The nickel perovskite-derived catalysts, calcined at 650 750 °C, respectively, yielded excellent H2 production from decomposition. particular, 450 almost 100% converted over under study. Furthermore, these materials displayed admirable performance stability day reaction.