CoSb₃ alloy nanoparticles wrapped with N-doped carbon layers as a highly active bifunctional electrocatalyst for zinc–air batteries

Abstract

CoSb3 nanoparticles wrapped with N-doped carbon layers have been prepared and showed excellent catalytic activities both for ORR and OER. A real rechargeable zinc–air battery with CoSb3@NCL-30 catalyst as air cathode exhibited outstanding electrochemical properties.

Regio-isomerism directed electrocatalysis for energy efficient zinc-air battery

“…The Zn half-cell and ORR/OER half-cells were separated by a Nafion 117 membrane. The discharge polarization curve demonstrated a peak power density of 90 mW/cm 2 at a current density of 150 mA/cm 2 ( Figure S9 ), which is in line with the literature with Pt-based catalysts ( Yu et al., 2016 ) ( Yang et al, 2017 ). The charge polarization curves show that the β-isomer outperforms the corresponding α-isomer and the charging reaction at all current densities occurs at a lower operating potential in the β-isomer than the α-isomer, ( Figure 3 A).…”

Carbon‐based cathode materials for rechargeable zinc‐air batteries: From current collectors to bifunctional integrated air electrodes

“…With regard to the one‐step approach, it has been applied to directly synthesize the porous‐structured catalysts. For example, the heteroatom‐doped graphene‐like carbon, 61 alloy nanoparticles wrapped with N‐doped carbon layers, 62 metal‐carbon composite, 63 and metal oxides decorated N‐doped CNTs 64 have been successfully synthesized by simple one‐step methods.…”