Oleylamine-assisted hydrothermal synthesis of ultrasmall NbOx nanoparticles and their in situ conversion to NbOx@C with highly reversible lithium storage

Yong Cai; Xiu Li; Lei Wang; Haiyan Gao; Yongnan Zhao; Jianmin Ma

doi:10.1039/C4TA04537H

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Oleylamine-assisted hydrothermal synthesis of ultrasmall NbO_x nanoparticles and their in situ conversion to NbO_x@C with highly reversible lithium storage†

Yong Cai,^a Xiu Li,^a Lei Wang,^a Haiyan Gao,^b Yongnan Zhao*^b and Jianmin Ma*^a

Author affiliations

* Corresponding authors

^a Key Laboratory for Micro-/Nano-Optoelectronic Devices of Ministry of Education, School of Physics and Microelectronic Science, Hunan University, Changsha 410082, China
E-mail: nanoelechem@hnu.edu.cn

^b Institute of Nanostructured Materials, School of Materials Science and Engineering, Tianjin Polytechnic University, Tianjin, P. R. China
E-mail: zhaoyn@263.net

Abstract

NbO_x@C nanoparticles have been successfully synthesized through the oleylamine-mediated hydrolysis of niobium(V) chloride under solvothermal conditions, in combination with an annealing technique. When tested as anode materials, NbO_x@C nanoparticles could deliver about 298 mA h g⁻¹ after 200 cycles at 100 mA g⁻¹.

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Article information

DOI: https://doi.org/10.1039/C4TA04537H
Article type: Communication
Submitted: 01 Sep 2014
Accepted: 24 Oct 2014
First published: 07 Nov 2014

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J. Mater. Chem. A, 2015,3, 1396-1399

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Oleylamine-assisted hydrothermal synthesis of ultrasmall NbO_x nanoparticles and their in situ conversion to NbO_x@C with highly reversible lithium storage

Y. Cai, X. Li, L. Wang, H. Gao, Y. Zhao and J. Ma, J. Mater. Chem. A, 2015, 3, 1396 DOI: 10.1039/C4TA04537H

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Journal of Materials Chemistry A