Today, carbon dioxide (CO₂) is one of the most pervasive greenhouse gases in the atmosphere, mainly because of the burning of fossil fuels. The carbon dioxide reduction reaction by photocatalysis and electrocatalysis is one approach that holds a lot of promise for easing the global crisis on the environmental and energy fronts. Developing and constructing high-performance photo- and electrocatalysts is a challenge that is being studied. The class of anionic metal-oxo clusters known as polyoxometalates (POMs) brings diverse and interesting chemical and physical characteristics that can be modified easily. The studies reveal that POMs are emerging to be distinctive photo/electrocatalysts for these reactions because of their unmatched advantages, like thermal and redox stability, light-absorbing capacity, quasi-semiconductor properties, etc. Numerous studies have demonstrated the capability of tungsten and molybdenum-based photo- and electrocatalysts for CO₂ reduction and conversion into value-added products. This review has covered the most recent developments in tungsten and molybdenum-based POMs that convert CO₂ into multiple products (CO, H₂, HCOOH, HCHO, CH₃OH, etc.). Perspectives for designing and constructing different kinds of POM-based catalytic systems have been offered.

如今，二氧化碳 (CO _{2 ) 是}大气中最普遍的温室气体之一，主要是由于化石燃料的燃烧造成的。通过光催化和电催化进行二氧化碳还原反应是一种有望缓解全球环境和能源危机的方法。开发和构建高性能光催化剂和电催化剂是一个正在研究的挑战。被称为多金属氧酸盐 (POM) 的阴离子金属氧簇具有多种有趣的化学和物理特性，并且可以轻松修改。研究表明，POM 因其无与伦比的优势，如热稳定性和氧化还原稳定性、光吸收能力、准半导体特性等，正在成为这些反应的独特光/电催化剂。大量研究已经证明了钨和钼的能力用于CO ₂还原和转化为增值产品的光催化剂和电催化剂。本综述涵盖了钨基和钼基 POM 的最新发展，这些 POM 将 CO ₂转化为多种产品（CO、H ₂、HCOOH、HCHO、CH ₃ OH 等）。提出了设计和构建不同类型的基于 POM 的催化系统的观点。