The pyrolysis of Ni-substituted zeolitic imidazolate framework-8 produces NiN@NC with an ultra-low loading of Ni (7.4 × 10 mol%). The Ni-N coordination, subnanometer particle size, and uniform distribution of NiN on the NC support lead to excellent catalytic activity (TON = 2702) and selectivity for the amination of aldehydes to produce amides.
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