NH₃ plasma-etching-derived porous N-doped carbon nanotubes with FeP nanoparticles and intrinsic carbon defects for boosting oxygen reduction in rechargeable Zn–air batteries

Abstract

Modulating intrinsic activity and coupling with transition metal phosphides are encouraging strategies to enhance the electrochemical performance of carbon-based materials. In this study, N-doped carbon nanotubes were derived from polyaniline...

Cu Regulating the Bifunctional Activity of Co-O Sites for the High-Performance Rechargeable Zinc-Air Battery

“…A comparison of the energy storage system with the organic electrolyte, zinc-air battery (ZAB) with a high theoretical specific energy density (1086 Wh kg –1 ) offers unique advantages due to its environmental friendliness and high security. , The oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) on the oxygen electrode of the ZAB determine the reaction kinetics and the released capacity. Efficient bifunctional catalysts with both ORR and OER catalytic effects can increase the kinetics on the charging and discharging reactions resulting in a high energy density as well as long-term cycling. − Precious metal catalysts can offer an outstanding catalytic performance among the many available catalysts. However, confronting with scarce reserves, high cost, and the unstable catalytic process of the defining characteristics of precious metals, research prefers to focus more on optimizing the non-noble metal bifunctional catalysts. − …”