Rational synthesis of Cu-Ni dual-atom catalysts for optimized thermochemical CO2 reduction (IMAGE)

National Research Council of Science & Technology

Rational synthesis of Cu-Ni dual-atom catalysts for optimized thermochemical CO2 reduction

Caption

Cu and Ni atoms are atomically dispersed in a nitrogen-doped carbon framework to form paired active sites. Colloidal silica templating and NaOH etching generate a porous Cu–Ni dual-atom catalyst (CuNi-DAC) with a well-defined N2Cu-N2-NiN2 structure. In the reverse water-gas shift reaction, CuNi-DAC achieves near-equilibrium CO2 conversion with nearly 100% CO selectivity and remains stable up to 600 °C over repeated cycles.

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Korea Research Institute of Chemical Technology(KRICT)

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