CO₂ is the main greenhouse gas and a renewable carbon resource. Electrochemical transformation of CO₂ (CO₂ET) to value-added chemicals and fuels is one of the promising routes to reduce CO₂ emission and contributes to sustainability and carbon neutrality. In this review, we discuss recent developments on apparatuses used in CO₂ET, electrocatalytic reactions of CO₂ with water, organics, nitrogen, and nitrogen-containing compounds to synthesize chemicals and fuels by the construction of different chemical bonds (e.g., C–H, C–C, C–O, and C–N), and related reaction mechanisms. Also, an outlook was considered to highlight the opportunities and challenges in CO₂ET.

CO ₂是主要的温室气体和可再生碳资源。_{将 CO 2} (CO ₂ ET)电化学转化为增值化学品和燃料是减少 CO ₂排放并有助于实现可持续性和碳中和的有前景的途径之一。在这篇综述中，我们讨论了用于 CO ₂ ET 的设备的最新发展，CO ₂与水、有机物、氮和含氮化合物的电催化反应，通过构建不同的化学键（例如，C- H、C-C、C-O 和 C-N) 以及相关的反应机理。此外，还考虑了突出 CO _{2机遇和挑战的展望}东部时间。