Hierarchical Co₃O₄ Nano-Micro Arrays Featuring Superior Activity as Cathode in a Flexible and Rechargeable Zinc-Air Battery.

ABSTRACT: All-solid-state zinc-air batteries are characterized as low cost and have high energy density, providing wearable devices with an ideal power source. However, the sluggish oxygen reduction and evolution reactions in air cathodes are obstacles to its flexible and rechargeable application. Herein, a strategy called MOF-on-MOF (MOF, metal-organic framework) is presented for the structural design of air cathodes, which creatively develops an efficient oxygen catalyst comprising hierarchical Co₃O₄ nanoparticles anchored in nitrogen-doped carbon nano-micro arrays on flexible carbon cloth (Co₃O₄@N-CNMAs/CC). This hierarchical and free-standing structure design guarantees high catalyst loading on air cathodes with multiple electrocatalytic activity sites

SUBMITTER: Zhong Y 

PROVIDER: S-EPMC6548986 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature