Multiple Secondary Bond-Mediated C–N Coupling over N-Doped Carbon Electrocatalysts

Electrocatalytic C–N reductive coupling offers a sustainable and eco-friendly approach to producing value-added oximes. The challenge lies in the overstrong chemisorption of N-containing intermediates and carbonyl compounds on metal-based catalysts, which causes low Faradaic efficiency and yield rates, as well as undesired byproducts. Here, we propose a multiple secondary bond-mediated strategy for C–N coupling toward benzaldoxime on a nitrogen-doped graphene-like carbon catalyst (NC). Integrating theoretical and experimental analyses, we demonstrate that the graphitic-N–C sites in NC promote nitrite reduction into hydroxylamine via weak electrostatic interaction. Moreover, the hydrogen bonds and π–π stacking…

• NN
  National Natural Science Foundation of China

  Awards: 22361162665, 22025208, 22432006