Nitrogen-Doped Ketjenblack Carbon Supported Co₃O₄ Nanoparticles as a Synergistic Electrocatalyst for Oxygen Reduction Reaction.

ABSTRACT: Developing a highly active and cost-effective cathode electrocatalyst with strong stability for oxygen reduction reaction (ORR) is extremely necessary. In this work, we reported a facile synthetic path to prepare a hybrid nanostructure formed of nitrogen-doped Ketjenblack carbon (N-KC) supported Co₃O₄ nanoparticles (Co₃O₄/N-KC), which could be used as a promising and stable electrocatalyst for ORR. Compared with the physical mixture of Co₃O₄ and N-KC and pure N-KC samples, the resulting Co₃O₄/N-KC nanohybrid afforded remarkably superb ORR activity with a half-wave potential of 0.82 V (vs. reversible hydrogen electrode, RHE) and a limiting current density of 5.70 mA cm^-2 in KOH solution (0.1 M

SUBMITTER: Cheng G 

PROVIDER: S-EPMC6904301 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature