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Structure and Lithium Insertion Properties of Carbon Nanotubes

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Wu, G. T., Wang, C. S., Zhang, X. B., Yang, H. S., Qi, Z. F., He, P. M., Li, W. Z.·1999·Journal of The Electrochemical Society

Abstract

Carbon nanotubes were obtained by pyrolysis of acetylene or ethylene catalyzed by iron or iron oxide nanoparticles. The morphology, microstructure, and lithium insertion properties of these carbon nanotubes were investigated by transmission electron microscopy, high‐resolution transmission electron microscopy, X‐ray diffraction, Raman spectroscopy, and electrochemical measurements, respectively. The results showed that the structures of the carbon nanotubes play major roles in both specific capacity and cycle life. Slightly graphitized carbon nanotubes showed a specific capacity of 640 mAh/g during the first charge, whereas well‐graphitized carbon nanotubes showed a specific capacity of 282 mAh/g during the first charge. After 20 charge/discharge cycles the charge capacity of the slightly graphitized samples degraded to 65.3% of their original charge capacities, but the well‐graphitized samples maintained 91.5% of their original charge capacities. The effects of charge‐discharge rates and cycling temperature on lithium insertion properties of carbon nanotubes with different extents of graphitization are discussed. © 1999 The Electrochemical Society. All rights reserved.

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Metadata

Authors
Wu, G. T., Wang, C. S., Zhang, X. B., Yang, H. S., Qi, Z. F., He, P. M., & Li, W. Z.
Venue
Journal of The Electrochemical Society
Published
1999-05-01
Volume
146
Issue
5
Pages
1696-1701
ISSN
  • 0013-4651 (ISSN-L)
  • 1945-7111
OpenAlex
W2055069860
Cited by
210
References
0
FWCI
12.01
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Structure and Lithium Insertion Properties of Carbon Nanotubes. https://app.cochat.ai/papers/10.1149/1.1391828
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Wu, G. T., Wang, C. S., Zhang, X. B., Yang, H. S., Qi, Z. F., He, P. M., & Li, W. Z. (1999). Structure and Lithium Insertion Properties of Carbon Nanotubes. Journal of The Electrochemical Society. https://doi.org/10.1149/1.1391828

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