Metal-organic framework derived hollow porous CuO-CuCo₂O₄ dodecahedrons as a cathode catalyst for Li-O₂ batteries.

ABSTRACT: Herein, hollow porous CuO-CuCo₂O₄ dodecahedrons are synthesized by using a simple self-sacrificial metal-organic framework (MOF) template, which resulted in dodecahedron morphology with hierarchically porous architecture. When evaluated as a cathodic electrocatalyst in lithium-oxygen batteries, the CuO-CuCo₂O₄ composite exhibits a significantly enhanced electrochemical performance, delivering an initial capacity of 6844 mA h g^-1 with a remarkably decreased discharge/charge overpotential to 1.15 V (vs. Li/Li⁺) at a current density of 100 mA g^-1 and showing excellent cyclic stability up to 111 charge/discharge cycles under a cut-off capacity of 1000 mA h g^-1 at 400 mA g^-1. The outstandin

SUBMITTER: Zhen SY 

PROVIDER: S-EPMC9064447 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature