Limited and non-renewable fossil fuels prompt people to develop CO2 reduction technology. Polyoxometalate (POM)-based electrocatalysts have flourished due to their intriguing molecular structure and unique redox chemistry. In this Research Update, the investigations of POM-based electrocatalysts for CO2 are summarized through the following stages: first, brief fundamentals of electrochemical CO2 reduction reaction (CO2RR) and a concise introduction of POMs are introduced to provide a preliminary understanding of POM-based electrocatalysts for CO2RR; next a chronology is retrospected with respect to the development of POM-based electrocatalysts for CO2RR; subsequently, representative works are demonstrated based on the POMs themselves and POM-modified metals/alloys, and molecular catalysts as CO2RR electrocatalysts. Finally, perspectives are proposed for the challenges of the design and development of POM-based systems for electrochemical CO2RR.

中文翻译：

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多金属氧酸盐作为电子和质子储库有助于电化学 CO2 还原

有限且不可再生的化石燃料促使人们开发二氧化碳减排技术。基于多金属氧酸盐 (POM) 的电催化剂因其有趣的分子结构和独特的氧化还原化学而蓬勃发展。在本研究更新中，对基于 POM 的 CO2 电催化剂的研究通过以下几个阶段进行了总结：首先，简要介绍了电化学 CO2 还原反应 (CO2RR) 的基本原理和 POM 的简明介绍，以初步了解 POM 基电催化剂。 CO2RR 的电催化剂；接下来回顾了基于 POM 的 CO2RR 电催化剂的开发年表；随后，基于 POM 本身和 POM 改性的金属/合金以及作为 CO2RR 电催化剂的分子催化剂展示了代表性工作。最后，