Catalytic materials play important roles in chemical, energy, and environmental fields. The exhaustion of fossil fuels and the resulting deteriorative environment have become worldwide problems to be solved urgently. Therefore, treatment of catalytic materials by a green process is required for a sustainable future, and the atom efficiency of the catalytic materials should be improved at the same time. Cold plasma is rich in high-energy electrons and active species, and the gas temperature can be close to room temperature. It has been proved to be a fast, facile, and environmentally friendly novel method for treating catalytic materials, and has aroused increasing research interests. First, plasma treatment can achieve the reduction, deposition, combination, and decomposition of active components during the preparation of catalytic materials. The fast, low-temperature plasma process with a strong electric field in it leads to different types of nucleation and crystal growth compared to conventional thermal methods. Correspondingly, the synthesized catalytic materials generally possess smaller particle sizes and controlled structure depending on the plasma processing parameters and the materials to be treated, which can enhance their activity and stability. Second, plasma treatment can achieve the modification, doping, etching, and exfoliation of the catalytic materials, which can tune the surface properties and electronic structures of the catalytic materials to expose more active sites. Third, plasma treatment can regenerate deactivated catalytic materials by removing the carbon deposits or other poisons, and reconstruction of the destroyed structure. This work reviews the current status of research on cold plasma treatment of catalytic materials. The focus is on physical and chemical processes during plasma processing, the processing mechanism of the catalytic materials, as well as the future challenges in this filed.

催化材料在化学、能源和环境领域发挥着重要作用。化石燃料的枯竭和随之而来的环境恶化已成为世界范围内亟待解决的问题。因此，可持续的未来需要通过绿色工艺处理催化材料，同时还应提高催化材料的原子效率。冷等离子体富含高能电子和活性物种，气体温度可接近室温。它已被证明是一种快速、简便、环保的处理催化材料的新方法，并引起了越来越多的研究兴趣。首先，等离子体处理可以实现催化材料制备过程中活性成分的还原、沉积、结合和分解。与传统的热方法相比，具有强电场的快速低温等离子体工艺会导致不同类型的成核和晶体生长。相应地，合成的催化材料通常具有较小的粒径和可控的结构，这取决于等离子体处理参数和待处理的材料，这可以提高其活性和稳定性。其次，等离子体处理可以实现催化材料的改性、掺杂、蚀刻和剥离，从而可以调整催化材料的表面性质和电子结构，从而暴露更多的活性位点。第三，等离子体处理可以通过去除碳沉积物或其他毒物以及重建被破坏的结构来再生失活的催化材料。本文综述了催化材料冷等离子体处理的研究现状。重点是等离子体处理过程中的物理和化学过程、催化材料的处理机制以及该领域的未来挑战。