The carbon-based electrode has been widely used for electrochemical analysis and synthesis. It is relatively inert for hydrogen evolution in the negative potential range, which is suitable for CO₂ electrochemical reduction. In improving the catalytic activity, a modification of metal particles is commonly used on its surface. Various metal particles have been reported with multiple modification methods, including electrochemical and physical methods. In this report, the utilization of different metal particles, including metal oxide, metal hydroxide, and metal complexes, which are modified on carbon-based electrodes for CO₂ electrochemical reduction application is specifically reviewed. This review is expected to provide comprehensive information on related topics.

碳基电极已广泛用于电化学分析和合成。在负电位范围内析氢相对惰性，适用于CO ₂电化学还原。为了提高催化活性，通常在其表面使用金属颗粒的改性。已经报道了具有多种改性方法的各种金属颗粒，包括电化学和物理方法。在本报告中，特别回顾了不同金属颗粒的利用，包括金属氧化物、金属氢氧化物和金属配合物，这些颗粒在碳基电极上改性用于 CO ₂电化学还原应用。预计本次审查将提供有关相关主题的全面信息。