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Published on: November 11, 2013
Facile microstructure control of mesoporous Co1.29Ni1.71O4 and the effect of the microstructure on lithium-storage
Ying Xiao1, Changwen Hu, Minhua Cao
1Department of Chemistry, Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Institute of Technology, Beijing 100081, PR China.
Abstract:
A simple and efficient pathway has been designed and developed to synthesize mesoporous Co1.29Ni1.71O4 nanostructures without the use of any templates. By adjusting the volume ratio of water to ethanol, the Co1.29Ni1.71O4 microstructure can be facilely controlled, and different nanostructures such as microflowers, nanorods, and nanoparticles were obtained. All three as-synthesized samples have a mesoporous structure, but with different pore-size distributions, in which the nanorod sample exhibits the highest capacity, good rate capability, and cycle stability as an anode material in lithium-ion batteries (LIBs). The possible reason might be that the one-dimensional structure of the nanorods accounts for their higher conductivity relative to microflowers and nanoparticles, and their high conductivity coupled with their mesoporous structure might contribute to their excellent electrochemical performance.
