Porous cobalt–manganese oxide nanocubes derived from metal organic frameworks as a cathode catalyst for rechargeable Li–O2 batteries
Author: Jian Zhang, Liangjun Wang, Leilei Xu, Xiaoming Ge, Xiao Zhao, Min Lai, Zhaolin Liu, and Wei Chen
Published: 10 Nov 2014
Abstract
The development of cathode catalysts with a porous structure is essential to design Li–O2 batteries with a high rate performance and good cycle stability. Herein, spinel-type porous cobalt–manganese oxide (Co–Mn–O) nanocubes derived from metal organic frameworks were employed as an electrocatalyst in a Li–O2 battery. The battery with the porous Co–Mn–O nanocubes electrode showed a low overpotential and enhanced capacity. The synergistic effects of large specific surface area, porous structure, and the high electrocatalytic activity of the porous Co–Mn–O nanocubes electrode endowed the Li–O2 battery with a good rate performance and excellent cycle stability up to 100 cycles.
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