• A surface oxygen-injection strategy is proposed to synergistically modulate the electronic structure of the SnS₂ nanosheets, thereby regulating the oxophilicity of the catalyst surface.

• The surface oxygen doping facilitates the CO₂ activation and enhances the affinity for HCOO* species.

• The oxygen-injection SnS₂ nanosheets exhibit a remarkable Faradaic efficiency of 91.6% for carbonaceous products with a current density of 24.1 mA cm⁻² at -0.9 V vs RHE.

中文翻译：

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在二硫化锡纳米片中注入表面氧，用于将 CO2 电还原为甲酸盐和合成气

• 提出了一种表面注氧策略以协同调节SnS ₂纳米片的电子结构，从而调节催化剂表面的亲氧性。

• 表面氧掺杂促进CO ₂活化并增强对HCOO*物质的亲和力。

• 对于碳质产品，注氧SnS ₂纳米片的法拉第效率高达91.6%，电流密度为24.1 mA cm ^-2在-0.9 V vs RHE。