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Ren, Muqing; Zhang, Jibo; Tour, James M.
Carbon (New York), 11/2018, Letnik: 139Journal Article
We present here a straightforward synthesis of highly efficient bifunctional OER/ORR catalysts through a facile laser-induced graphene (LIG) process to produce Co3O4/LIG. The Co3O4/LIG showed OER and ORR activity comparable to noble metal-based catalysts in alkaline electrolyte. Furthermore, the Co3O4/LIG exhibited promising performance in Zn-air and Li-O2 batteries. The rechargeable Zn-air battery has an open-circuit potential of 1.46 V and a high power density of 84.2 mW/cm2 at 100 mA/cm2. The Li-O2 battery with the Co3O4/LIG cathode exhibits low overpotentials in both charge and discharge processes and excellent cycling stability up to 242 cycles. Display omitted
