Cs4Co1.2Sb1.8Cl12 with rich chlorine defect and enhanced spin polarization achieved excellent photocatalytic activity for CO2 conversion without sacrificial agent

doi:10.1016/j.apcatb.2025.126227

Cs4Co1.2Sb1.8Cl12 with rich chlorine defect and enhanced spin polarization achieved excellent photocatalytic activity for CO2 conversion without sacrificial agent

2025-11-21

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DOI：10.1016/j.apcatb.2025.126227

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• Co/Sb modulated electronic structure of Cs4CoSb2Cl12 to induce spin polarization. • Spin polarization promoted photo-induced carriers separation of Cs4Co1.2Sb1.8Cl12. • Chlorine defects on Cs4Co1.2Sb1.8Cl12 promoted charge separation and CO2 reduction. • The Cs4Co1.2Sb1.8Cl12 achieved an unprecedented CO yield without sacrificial agent. • Possible CO2 reduction pathways were proposed based on identified intermediates.

Cs4Co1.2Sb1.8Cl12 with rich chlorine defect and enhanced spin polarization achieved excellent photocatalytic activity for CO2 conversion without sacrificial agent

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