Copper nickel@ reduced graphene oxide nanocomposite as bifunctional electro-catalyst for excellent oxygen evolution and oxygen reduction reactions
Herein, we demonstrate that copper nickel (CuNi)@reduced graphene oxide (RGO) nanocomposite (NC) is an excellent bifunctional electro-catalyst to oxygen evolution (OER) and oxygen reduction reactions (ORR). CuNi@RGO-NC shows impressive electro-catalytic activity with fairly low onset over-potentials for OER (~135 mV) and ORR (~60 mV) in alkaline medium. Tafel slopes of CuNi@RGO-NC were found to be ~182 and ~86 mV/dec for OER and ORR, respectively. CuNi@RGO-NC exhibits better retention rate (88%) than CuNi nanoparticles (NPs) and also reveals the comparable OER/ORR activities with expensive electro-catalysts (20% Pt/C).
Room-temperature successive ionic layer adsorption and reaction (SILAR) electroless chemical method has been proposed for synthesizing Bi2O3, MnO2 and Bi2O3@MnO2 electrode materials over graphite…
Block copolymers (BCPs) have received significant attention as promising candidates for sequestering nanoparticles and fabrication of aligned nanostructures with optimal optical or electrical…
Herein, we demonstrate that copper nickel (CuNi)@reduced graphene oxide (RGO) nanocomposite (NC) is an excellent bifunctional electro-catalyst to oxygen evolution (OER) and oxygen reduction…