▎ 摘　　要

Graphene supported Pd@Co core-shell nanocatalysts with magnetically recyclability were synthesized via the in situ synthesis strategy utilizing the distinction in reduction potentials of the two precursors with appropriate reductant. The as-synthesized catalysts exerted satisfied catalytic activity (916 L mol(-1) min(-1)) and recycle stability for hydrolytic dehydrogenation of ammonia borane.