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Synthesis of Na2Ti3O7 nanorods by a V-assisted route and investigation of their battery performance

Altin, S. ; Demirel, S. ; Oz, E. ; Altin, E. ; Hetherington, C. LU orcid ; Bayri, A. and Avci, S. (2020) In CrystEngComm 22(14). p.2483-2490
Abstract

We report the V-assisted synthesis of Na2Ti3O7 nanorods via a conventional solid state reaction technique. Energy dispersive X-ray spectroscopy (EDS) mapping showed that V-ions are not incorporated into the main structure of the nanorods but rather V behaves as a flux agent during the growth of the nanorods. The cyclic voltammetry (CV) analysis of the samples shows changes in the redox peaks as a function of V content. Our detailed ex situ X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray absorption spectroscopy (XAS) analyses after 1000 cycles show that the degradation mechanism is the formation of various titanium oxide... (More)

We report the V-assisted synthesis of Na2Ti3O7 nanorods via a conventional solid state reaction technique. Energy dispersive X-ray spectroscopy (EDS) mapping showed that V-ions are not incorporated into the main structure of the nanorods but rather V behaves as a flux agent during the growth of the nanorods. The cyclic voltammetry (CV) analysis of the samples shows changes in the redox peaks as a function of V content. Our detailed ex situ X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray absorption spectroscopy (XAS) analyses after 1000 cycles show that the degradation mechanism is the formation of various titanium oxide impurity phases which inhibits the Na-ion diffusion.

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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
CrystEngComm
volume
22
issue
14
pages
8 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:85083079502
ISSN
1466-8033
DOI
10.1039/c9ce01955c
project
NFFA-Europe - NANOSCIENCE FOUNDRIES AND FINE ANALYSIS - EUROPE
language
English
LU publication?
yes
id
c5ac8e06-fbe4-4efa-80c7-55d9d36d9955
date added to LUP
2020-04-30 12:35:43
date last changed
2025-04-04 14:09:16
@article{c5ac8e06-fbe4-4efa-80c7-55d9d36d9955,
  abstract     = {{<p>We report the V-assisted synthesis of Na<sub>2</sub>Ti<sub>3</sub>O<sub>7</sub> nanorods via a conventional solid state reaction technique. Energy dispersive X-ray spectroscopy (EDS) mapping showed that V-ions are not incorporated into the main structure of the nanorods but rather V behaves as a flux agent during the growth of the nanorods. The cyclic voltammetry (CV) analysis of the samples shows changes in the redox peaks as a function of V content. Our detailed ex situ X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray absorption spectroscopy (XAS) analyses after 1000 cycles show that the degradation mechanism is the formation of various titanium oxide impurity phases which inhibits the Na-ion diffusion.</p>}},
  author       = {{Altin, S. and Demirel, S. and Oz, E. and Altin, E. and Hetherington, C. and Bayri, A. and Avci, S.}},
  issn         = {{1466-8033}},
  language     = {{eng}},
  number       = {{14}},
  pages        = {{2483--2490}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{CrystEngComm}},
  title        = {{Synthesis of Na<sub>2</sub>Ti<sub>3</sub>O<sub>7</sub> nanorods by a V-assisted route and investigation of their battery performance}},
  url          = {{http://dx.doi.org/10.1039/c9ce01955c}},
  doi          = {{10.1039/c9ce01955c}},
  volume       = {{22}},
  year         = {{2020}},
}