Template synthesis of MnO sub(2/CNT nanocomposite and its application in rechargeable lithium batteries)

Nanostructured MnO sub(2/CNT composite was synthesized by a soft template approach in the presence of Pluronic P123 surfactant. The product was characterized by X-ray diffraction, thermogravimetric and differential thermal analyses, Fourier transformed infrared spectroscopy and high-resolution trans...

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Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2011-09, Vol.21 (9), p.2010-2014
Main Authors: Zou, Min-Min, Ai, Deng-Jun, Liu, Kai-Yu
Format: Article
Language:English
Subjects:
Carbon nanotubes
China
Diffraction
Electrochemical impedance spectroscopy
Electrodes
Nanomaterials
Nanorods
Nanostructure
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Summary:Nanostructured MnO sub(2/CNT composite was synthesized by a soft template approach in the presence of Pluronic P123 surfactant. The product was characterized by X-ray diffraction, thermogravimetric and differential thermal analyses, Fourier transformed infrared spectroscopy and high-resolution transmission electron microscopy. The results show that the sample consists of poor crystalline alpha -MnO) sub(2) nanorods with a diameter of about 10 nm and a length of 30-50 nm, which absorb on the carbon nanotubes. The electrochemical properties of the product as cathode material for Li-MnO sub(2 cell are evaluated by galvanostatic charge-discharge and electrochemical impedance spectroscopy (EIS). Compared with pure MnO) sub(2) electrode, the MnO sub(2/CNT composite delivers a much larger initial capacity of 275.3 mA times h/g and better rate and cycling performance.)
ISSN:1003-6326
DOI:10.1016/S1003-6326(11)60964-3