Layered double hydroxide derived NiAl-oxide hollow nanospheres for selective transfer hydrogenation with improved stability

Ni₃Al₁-oxide hollow nanospheres calcined at 800 °C (h-Ni₃Al₁-800) show excellent selectivity at full conversion and stability due to the formation of N^δ+-type (2 < δ < 3) acid–base pairs for selective transfer hydrogenation of α,β-unsaturated aldehydes.