Issue 25, 2015

MnOx decorated CeO2 nanorods as cathode catalyst for rechargeable lithium–air batteries

Abstract

An efficient catalyst for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is the most critical factor influencing the performance of lithium–air batteries. We present MnOx decorated CeO2 nanorods as a highly active cathode catalyst for lithium–air batteries fabricated via an in-situ redox reaction. Lithium–air batteries based on MnOx@CeO2 catalysts show enhanced electrochemical performances, including high first discharge specific capacity (2617 mA h g−1 at 100 mA g−1), low overpotential, good rate capability (up to 400 mA g−1), and cycle stability (only 1.1% voltage loss after 30 cycles of specific capacity limit of 1000 mA h g−1 tested at 200 mA g−1). The improved performance might be attributed to the high catalyst efficiency.

Graphical abstract: MnOx decorated CeO2 nanorods as cathode catalyst for rechargeable lithium–air batteries

Supplementary files

Article information

Article type
Paper
Submitted
15 Apr 2015
Accepted
21 May 2015
First published
21 May 2015

J. Mater. Chem. A, 2015,3, 13563-13567

MnOx decorated CeO2 nanorods as cathode catalyst for rechargeable lithium–air batteries

Y. Zhu, S. Liu, C. Jin, S. Bie, R. Yang and J. Wu, J. Mater. Chem. A, 2015, 3, 13563 DOI: 10.1039/C5TA02722E

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