How can the Dual‐atom Catalyst FeCo–NC Surpass Single‐atom Catalysts Fe–NC/Co–NC in CO <sub>2</sub> RR? – CO Intermediate Assisted Promotion via a Synergistic Effect

نویسندگان

چکیده

Atomically dispersed catalysts are widely adopted in CO2 reduction reaction (CO2RR) due to maximal atomic utilization and high catalytic activity. Dual-atom (DACs), with more active sites distinct electronic structures compared single-atom (SACs), may exhibit diverse performance. Herein, the DAC FeCo–NC SAC Fe–NC/Co–NC employed as probes explore DACs advantage CO2RR. Results show that moderate interaction between dual-atom center N coordination balances structural stability CO is only product on Fe–NC/Co–NC, limiting potentials from −1.22 −1.67 V inhibit further reduction. assisted intermediate exhibits low of −0.64 for both CH3OH CH4, comparable those Cu-based catalysts. Under circumstance applied potentials, CO2RR has greater advantages yielding CH4 than hydrogen evolution severely inhibited. The intrinsic essence can provide large spin-polarization multi-electron transfer capability, rendering intermediates effective geometric modifiers This work highlights a high-performance catalyst toward deep-reduction C1 products elucidates promotion mechanism via synergistic effect.

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ژورنال

عنوان ژورنال: Energy & environmental materials

سال: 2022

ISSN: ['2575-0348', '2575-0356']

DOI: https://doi.org/10.1002/eem2.12287