Here we demonstrate the delicate design and construction of hierarchical nitrogen-doped carbon@NiCo₂O₄ (NC@NiCo₂O₄) double-shelled nanoboxes for the photocatalytic reduction of CO₂ with visible light. This smart design rationally combines the structural and functional advantages of catalytically active Co and Ni species with conductive nitrogen-doped carbon into a three-dimensional hollow nanoarchitecture, which can remarkably facilitate the migration and separation of photogenerated charge carriers, enhance the adsorption and concentration of CO₂ molecules, and provide more active sites for photochemical reactions. Benefitting from these unique structural and compositional features, the hierarchical NC@NiCo₂O₄ double-shelled nanoboxes manifest considerable performance for the deoxygenative reduction of CO₂ with a high CO-evolving rate (26.2 μmol h⁻¹; 2.62 × 10⁴ μmol h⁻¹ g⁻¹) and high stability.

中文翻译：

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合理设计的分层N掺杂碳@NiCo ₂ O ₄双壳纳米盒，用于增强可见光CO ₂还原†

在这里，我们演示了用于可见光光催化还原CO ₂的分层氮掺杂碳@ NiCo ₂ O ₄（NC @ NiCo ₂ O ₄）双壳纳米盒的精细设计和构造。这种智能设计合理地将催化活性Co和Ni物种的结构和功能优势与导电氮掺杂碳结合成三维中空纳米结构，可以显着促进光生电荷载流子的迁移和分离，增强对碳的吸附和浓缩。一氧化碳₂分子，并为光化学反应提供更多的活性位点。从这些独特的结构和组成特征获益，分层NC @镍钴₂ ö ₄双壳nanoboxes为deoxygenative减少CO的清单相当大的性能₂具有高CO-进化率（26.2微摩尔ħ ^-1 ; 2.62×10 ⁴微摩尔h ^-1 g ^-1）和高稳定性。