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Issue 6, 2013
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Facile synthesis of loaf-like ZnMn2O4nanorods and their excellent performance in Li-ion batteries

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Abstract

Binary transition metal oxides have been attracting extensive attention as promising anode materials for lithium-ion batteries, due to their high theoretical specific capacity, superior rate performance and good cycling stability. Here, loaf-like ZnMn2O4 nanorods with diameters of 80–150 nm and lengths of several micrometers are successfully synthesized by annealing MnOOH nanorods and Zn(OH)2 powders at 700 °C for 2 h. The electrochemical properties of the loaf-like ZnMn2O4 nanorods as an anode material are investigated in terms of their reversible capacity, and cycling performance for lithium ion batteries. The loaf-like ZnMn2O4 nanorods exhibit a reversible capacity of 517 mA h g−1 at a current density of 500 mA g−1 after 100 cycles. The reversible capacity of the nanorods still could be kept at 457 mA h g−1 even at 1000 mA g−1. The improved electrochemical performance can be ascribed to the one-dimensional shape and the porous structure of the loaf-like ZnMn2O4 nanorods, which offers the electrode convenient electron transport pathways and sufficient void spaces to tolerate the volume change during the Li+ intercalation. These results suggest the promising potential of the loaf-like ZnMn2O4 nanorods in lithium-ion batteries.

Graphical abstract: Facile synthesis of loaf-like ZnMn2O4 nanorods and their excellent performance in Li-ion batteries

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Supplementary files

Article information


Submitted
17 Oct 2012
Accepted
04 Jan 2013
First published
09 Jan 2013

Nanoscale, 2013,5, 2442-2447
Article type
Paper

Facile synthesis of loaf-like ZnMn2O4 nanorods and their excellent performance in Li-ion batteries

Z. Bai, N. Fan, C. Sun, Z. Ju, C. Guo, J. Yang and Y. Qian, Nanoscale, 2013, 5, 2442
DOI: 10.1039/C3NR33211J

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