Structure characterization and electrochemical characteristics of carbon nanotube-spinel Li4Ti5O12 nanoparticles

Xiangcheng Sun; A. Iqbal; I. D. Hosein; M. J. Yacaman; Z. Y. Tang; P. V. Radovanovic; B. Cui

doi:10.1557/opl.2012.1411

Structure characterization and electrochemical characteristics of carbon nanotube-spinel Li₄Ti₅O₁₂ nanoparticles

Xiangcheng Sun, A. Iqbal, I. D. Hosein, M. J. Yacaman, Z. Y. Tang, P. V. Radovanovic, B. Cui

Research output: Chapter in Book/Entry/Poem › Conference contribution

Abstract

Carbon nanotube-spinel lithium titanate (CNT-Li₄Ti ₅O₁₂) nanoparticles have been synthesized by hydrothermal reaction and higher-temperature calcinations with LiOH-H₂O and TiO₂ precursors in the presence of carbon nanotubes sources. The CNT-Li₄Ti₅O₁₂ nanoparticles have been characterized by X-ray diffraction (XRD), high angle annular dark field (HAADF) images, and selected area electron diffraction (SAED). The particles exhibited a spinel cubic crystal phase and homogenous size distribution, with sizes around 50-70 nm. HAADF imaging confirmed that carbon content exists on the surface of the CNT-Li₄Ti₅O₁₂ nanoparticles with graphitic carbon coating of 3-5 nm thickness under 800°C in the Ar gas. The graphitic carbon phase was further confirmed with Raman spectroscopy analysis on powder samples. Electrochemical characteristics were evaluated with galvanostatic discharge/charge tests, which showed that the initial discharge capacity is 172 mA-h/g at 0.1C. The nanoscale carbon layers uniformly coated the particles, and the interconnected carbon nanotube network is responsible for the improved charge rate capability and conductivity.

Original language	English (US)
Title of host publication	Next-Generation Energy Storage Materials and Systems
Pages	67-72
Number of pages	6
DOIs	https://doi.org/10.1557/opl.2012.1411
State	Published - 2012
Externally published	Yes
Event	2012 MRS Spring Meeting - San Francisco, CA, United States Duration: Apr 9 2012 → Apr 13 2012

Publication series

Name	Materials Research Society Symposium Proceedings
Volume	1440
ISSN (Print)	0272-9172

Other

Other	2012 MRS Spring Meeting
Country/Territory	United States
City	San Francisco, CA
Period	4/9/12 → 4/13/12

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1557/opl.2012.1411

Cite this

Sun, X., Iqbal, A., Hosein, I. D., Yacaman, M. J., Tang, Z. Y., Radovanovic, P. V., & Cui, B. (2012). Structure characterization and electrochemical characteristics of carbon nanotube-spinel Li₄Ti₅O₁₂ nanoparticles. In Next-Generation Energy Storage Materials and Systems (pp. 67-72). (Materials Research Society Symposium Proceedings; Vol. 1440). https://doi.org/10.1557/opl.2012.1411

Sun, X, Iqbal, A, Hosein, ID, Yacaman, MJ, Tang, ZY, Radovanovic, PV & Cui, B 2012, Structure characterization and electrochemical characteristics of carbon nanotube-spinel Li₄Ti₅O₁₂ nanoparticles. in Next-Generation Energy Storage Materials and Systems. Materials Research Society Symposium Proceedings, vol. 1440, pp. 67-72, 2012 MRS Spring Meeting, San Francisco, CA, United States, 4/9/12. https://doi.org/10.1557/opl.2012.1411

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title = "Structure characterization and electrochemical characteristics of carbon nanotube-spinel Li4Ti5O12 nanoparticles",

abstract = "Carbon nanotube-spinel lithium titanate (CNT-Li4Ti 5O12) nanoparticles have been synthesized by hydrothermal reaction and higher-temperature calcinations with LiOH-H2O and TiO2 precursors in the presence of carbon nanotubes sources. The CNT-Li4Ti5O12 nanoparticles have been characterized by X-ray diffraction (XRD), high angle annular dark field (HAADF) images, and selected area electron diffraction (SAED). The particles exhibited a spinel cubic crystal phase and homogenous size distribution, with sizes around 50-70 nm. HAADF imaging confirmed that carbon content exists on the surface of the CNT-Li4Ti5O12 nanoparticles with graphitic carbon coating of 3-5 nm thickness under 800°C in the Ar gas. The graphitic carbon phase was further confirmed with Raman spectroscopy analysis on powder samples. Electrochemical characteristics were evaluated with galvanostatic discharge/charge tests, which showed that the initial discharge capacity is 172 mA-h/g at 0.1C. The nanoscale carbon layers uniformly coated the particles, and the interconnected carbon nanotube network is responsible for the improved charge rate capability and conductivity.",

author = "Xiangcheng Sun and A. Iqbal and Hosein, {I. D.} and Yacaman, {M. J.} and Tang, {Z. Y.} and Radovanovic, {P. V.} and B. Cui",

note = "Funding Information: The Postgraduate Scholarship from Natural Sciences and Engineering Research Council of Canada (NSERC) is greatly appreciated by XC Sun; 2012 MRS Spring Meeting ; Conference date: 09-04-2012 Through 13-04-2012",

year = "2012",

doi = "10.1557/opl.2012.1411",

language = "English (US)",

isbn = "9781627482431",

series = "Materials Research Society Symposium Proceedings",

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T1 - Structure characterization and electrochemical characteristics of carbon nanotube-spinel Li4Ti5O12 nanoparticles

AU - Sun, Xiangcheng

AU - Iqbal, A.

AU - Hosein, I. D.

AU - Yacaman, M. J.

AU - Tang, Z. Y.

AU - Radovanovic, P. V.

AU - Cui, B.

N1 - Funding Information: The Postgraduate Scholarship from Natural Sciences and Engineering Research Council of Canada (NSERC) is greatly appreciated by XC Sun

PY - 2012

Y1 - 2012

N2 - Carbon nanotube-spinel lithium titanate (CNT-Li4Ti 5O12) nanoparticles have been synthesized by hydrothermal reaction and higher-temperature calcinations with LiOH-H2O and TiO2 precursors in the presence of carbon nanotubes sources. The CNT-Li4Ti5O12 nanoparticles have been characterized by X-ray diffraction (XRD), high angle annular dark field (HAADF) images, and selected area electron diffraction (SAED). The particles exhibited a spinel cubic crystal phase and homogenous size distribution, with sizes around 50-70 nm. HAADF imaging confirmed that carbon content exists on the surface of the CNT-Li4Ti5O12 nanoparticles with graphitic carbon coating of 3-5 nm thickness under 800°C in the Ar gas. The graphitic carbon phase was further confirmed with Raman spectroscopy analysis on powder samples. Electrochemical characteristics were evaluated with galvanostatic discharge/charge tests, which showed that the initial discharge capacity is 172 mA-h/g at 0.1C. The nanoscale carbon layers uniformly coated the particles, and the interconnected carbon nanotube network is responsible for the improved charge rate capability and conductivity.

AB - Carbon nanotube-spinel lithium titanate (CNT-Li4Ti 5O12) nanoparticles have been synthesized by hydrothermal reaction and higher-temperature calcinations with LiOH-H2O and TiO2 precursors in the presence of carbon nanotubes sources. The CNT-Li4Ti5O12 nanoparticles have been characterized by X-ray diffraction (XRD), high angle annular dark field (HAADF) images, and selected area electron diffraction (SAED). The particles exhibited a spinel cubic crystal phase and homogenous size distribution, with sizes around 50-70 nm. HAADF imaging confirmed that carbon content exists on the surface of the CNT-Li4Ti5O12 nanoparticles with graphitic carbon coating of 3-5 nm thickness under 800°C in the Ar gas. The graphitic carbon phase was further confirmed with Raman spectroscopy analysis on powder samples. Electrochemical characteristics were evaluated with galvanostatic discharge/charge tests, which showed that the initial discharge capacity is 172 mA-h/g at 0.1C. The nanoscale carbon layers uniformly coated the particles, and the interconnected carbon nanotube network is responsible for the improved charge rate capability and conductivity.

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