Defect- and oxygen-rich nanocarbon derived from solution plasma for bifunctional catalytic activity of oxygen reduction and evolution reactions

Abstract

The embedded and functionalized oxygen with defects nano carbon structure ensured sufficient catalytic activity for the ORR and OER.

Agri-waste derived electroactive carbon–iron oxide nanocomposite for oxygen reduction reaction: an experimental and theoretical study

“…The number of electrons involved in the reduction process was calculated using the Koutecký–Levich (K–L) equation: 19 B = 0.62 nFC 0 ( D 0 ) 2/3 ν −1/6 j K = nFkC 0 where, j is the measured current density, j K and j K are the kinetic and diffusion-limited current densities, ω is the angular frequency of the RDE in radians per second, n is the number of electrons involved in the reaction, F is the Faraday constant (96 485 C mol −1 ), D 0 is the diffusion coefficient of O 2 in the electrolyte (1.93 × 10 −5 cm 2 s −1 ), ν is the kinetic viscosity of the electrolyte (1.01 × 10 −2 cm 2 s −1 ), C 0 is the concentration of O 2 in the electrolyte (1.26 × 10 −3 mol l −1 ) and k is electron transfer rate constant.…”