Structural and catalytic properties of supported Ni-Ir alloy catalysts for H2 generation via hydrous hydrazine decomposition

- NiIrx/Al2O3 showed ≥98% H2 selectivity for hydrous hydrazine decomposition.
- The formation of Ni-Ir alloy was the reason for desired catalytic performance.
- High temperature reduction induced the migration of Ir atoms into the Ni bulk.