A Triatomic Cobalt Catalyst for Oxygen Electrocatalysis

Abstract The advancement of rechargeable zinc–air batteries significantly depends on bifunctional oxygen electrocatalysts to provide outstanding oxygen reduction/evolution reaction (ORR/OER) performance. However, it is still challenging to design electrocatalysts with excellent bifunctional activity and stability. Here, we adopt an ultrafast printing method to efficiently embed a triatom cobalt complex precursor onto graphene nanosheets to obtain a triatomic catalyst (Co 3 ‐NG), exhibiting a durable and excellent bifunctional catalyst in the electrocatalytic ORR ( E half‐wave = 0.903 V) and OER ( E j = 10 = 1.596 V). The Co 3 ‐NG‐assembled zinc–air battery can output a maximum power density of 189.0 mW cm −2…

• NS
  Natural Science Foundation of Jilin Province

  Award: 20220101051JC
• NN
  National Natural Science Foundation of China

  Award: 22075099