Design of Alkaline Earth-Doped Co/MgO Catalysts for Ammonia Decomposition.

ABSTRACT: Hydrogen is expected to be used as a fuel additive to ammonia, a non-flammable and carbon-free fuel, to improve combustion efficiency. However, the design strategies for developing highly active, nonprecious metal catalysts for ammonia decomposition are not yet well understood. Here, we show that Co/Ba_0.01Mg_0.99O exhibits high activity, with an ammonia conversion of 94.4% and a hydrogen production rate of 3.79 mol g_cat ^-1 h^-1 at 500°C with a WHSV of 60,000 mL g_cat ^-1 h^-1. Comparison of the dopant effects of alkaline earth metal elements elucidates that the high activity of Co/Ba_0.01Mg_0.99O is ascribed to the formation of a specific Co-BaO core-shell-like structure, with highly basi

SUBMITTER: Hayashi S 

PROVIDER: S-EPMC12900564 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature