Regulating Reactive Oxygen Species over M–N–C Single-Atom Catalysts for Potential-Resolved Electrochemiluminescence

The development of potential-resolved electrochemiluminescence (ECL) systems with dual emitting signals holds great promise for accurate and reliable determination in complex samples. However, the practical application of such systems is hindered by the inevitable mutual interaction and mismatch between different luminophores or coreactants. In this work, for the first time, by precisely tuning the oxygen reduction performance of M–N–C single-atom catalysts (SACs), we present a dual potential-resolved luminol ECL system employing endogenous dissolved O2 as a coreactant. Using advanced in situ monitoring and theoretical calculations, we elucidate the intricate mechanism involving the selective and efficient…

• NN
  National Natural Science Foundation of China

  Award: 22374054
• NS
  Natural Science Foundation of Hubei Province

  Award: 2023AFB571
• P2
  Project 211

  Award: B17019
• FR
  Fundamental Research Funds for the Central Universities

  Award: CCNU22JC006