Nano-island-encapsulated cobalt single-atom catalysts for breaking activity-stability trade-off in Fenton-like reactions

Single-atom catalysts (SACs) have been increasingly acknowledged for their performance in sustainable Fenton-like catalysis. However, SACs face a trade-off between activity and stability in peroxymonosulfate (PMS)-based systems. Herein, we design a nano-island encapsulated single cobalt atom (CoSA/Zn.O-ZnO) catalyst to enhance the activity and stability of PMS activation for contaminant degradation via an “island-sea” synergistic effect. In this configuration, small carrier-based ZnO nanoparticles (the “islands”) are utilized to confine and stabilize Co single atoms. The expansive ZnO substrate (the “sea”) upholds a neutral microenvironment within the reaction system. The CoSA/Zn.O-ZnO/PMS system exhibits a…

• NN
  National Natural Science Foundation of China

  Awards: 51908528, 52270149, 52270149, 51908528, 52192684, 51821006, 52192684, 51821006
• FR
  Fundamental Research Funds for the Central Universities

  Awards: 2024IAIS-QN013, 2021CDJQY-014, 51821006