Fine-tuning cobalt for cleaner chemical transformations

edited by Gaby Clark , reviewed by Robert Egan

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Add as preferred source A carbon-supported cobalt catalyst dynamically balances metallic Co and residual CoO x under electrolysis conditions, enabling selective hydrogenation of nitrogen-containing aromatic compounds using water as the hydrogen source. Controlling this mixed cobalt state provides an earth-abundant alternative to platinum-group-metal catalysts. Credit: Yokohama National University Finding alternatives to precious metals in chemical manufacturing may be less like sourcing a substitute and more like tuning an instrument already in hand.