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Issue 14, 2020
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Synthesis of Na2Ti3O7 nanorods by a V-assisted route and investigation of their battery performance

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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 impurity phases which inhibits the Na-ion diffusion.

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

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Article information


Submitted
11 Dec 2019
Accepted
23 Feb 2020
First published
25 Feb 2020

CrystEngComm, 2020,22, 2483-2490
Article type
Paper

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

S. Altin, S. Demirel, E. Oz, E. Altin, C. Hetherington, A. Bayri and S. Avci, CrystEngComm, 2020, 22, 2483
DOI: 10.1039/C9CE01955C

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