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Title: Studies on electrochemical lithium insertion in isostructural titanium niobate and tantalate phases with shear ReO{sub 3} structure

Abstract

Graphical abstract: - Highlights: • Electrochemical lithium insertion into ReO{sub 3} type phases TiNb{sub 2}O{sub 7}, TiTa{sub 2}O{sub 7} is feasible. • TiNb{sub 2}O{sub 7} exhibits good cycling behavior and high reversible capacity of 212 mAh g{sup −1}. • TiTa{sub 2}O{sub 7} exhibits reversible capacity of 100 mAh g{sup −1}. - Abstract: TiNb{sub 2}O{sub 7} and TiTa{sub 2}O{sub 7} phases are synthesized by solid-state reaction method and are investigated for electrochemical Li insertion/extraction. The electrochemical insertion of Li in these phases is characterized by both solid solution and two-phase regimes. The structure is stable toward Li insertion/extraction. The first cycle discharge capacity values are 307 mAh g{sup −1} and 215 mAh g{sup −1} in the voltage range of 3.0–1.0 V for TiNb{sub 2}O{sub 7} and TiTa{sub 2}O{sub 7} phases, respectively. The discharge capacities of TiNb{sub 2}O{sub 7} and TiTa{sub 2}O{sub 7} are 212 mAh g{sup −1} and 100 mAh g{sup −1}, respectively, after 20 cycles.

Authors:
Publication Date:
OSTI Identifier:
22290482
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 48; Journal Issue: 7; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CAPACITY; ELECTROCHEMISTRY; LITHIUM; NIOBATES; RHENIUM OXIDES; SOLID SOLUTIONS; TITANIUM

Citation Formats

Saritha, D., and Varadaraju, U.V., E-mail: varada@iitm.ac.in. Studies on electrochemical lithium insertion in isostructural titanium niobate and tantalate phases with shear ReO{sub 3} structure. United States: N. p., 2013. Web. doi:10.1016/J.MATERRESBULL.2013.03.033.
Saritha, D., & Varadaraju, U.V., E-mail: varada@iitm.ac.in. Studies on electrochemical lithium insertion in isostructural titanium niobate and tantalate phases with shear ReO{sub 3} structure. United States. https://doi.org/10.1016/J.MATERRESBULL.2013.03.033
Saritha, D., and Varadaraju, U.V., E-mail: varada@iitm.ac.in. 2013. "Studies on electrochemical lithium insertion in isostructural titanium niobate and tantalate phases with shear ReO{sub 3} structure". United States. https://doi.org/10.1016/J.MATERRESBULL.2013.03.033.
@article{osti_22290482,
title = {Studies on electrochemical lithium insertion in isostructural titanium niobate and tantalate phases with shear ReO{sub 3} structure},
author = {Saritha, D. and Varadaraju, U.V., E-mail: varada@iitm.ac.in},
abstractNote = {Graphical abstract: - Highlights: • Electrochemical lithium insertion into ReO{sub 3} type phases TiNb{sub 2}O{sub 7}, TiTa{sub 2}O{sub 7} is feasible. • TiNb{sub 2}O{sub 7} exhibits good cycling behavior and high reversible capacity of 212 mAh g{sup −1}. • TiTa{sub 2}O{sub 7} exhibits reversible capacity of 100 mAh g{sup −1}. - Abstract: TiNb{sub 2}O{sub 7} and TiTa{sub 2}O{sub 7} phases are synthesized by solid-state reaction method and are investigated for electrochemical Li insertion/extraction. The electrochemical insertion of Li in these phases is characterized by both solid solution and two-phase regimes. The structure is stable toward Li insertion/extraction. The first cycle discharge capacity values are 307 mAh g{sup −1} and 215 mAh g{sup −1} in the voltage range of 3.0–1.0 V for TiNb{sub 2}O{sub 7} and TiTa{sub 2}O{sub 7} phases, respectively. The discharge capacities of TiNb{sub 2}O{sub 7} and TiTa{sub 2}O{sub 7} are 212 mAh g{sup −1} and 100 mAh g{sup −1}, respectively, after 20 cycles.},
doi = {10.1016/J.MATERRESBULL.2013.03.033},
url = {https://www.osti.gov/biblio/22290482}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 7,
volume = 48,
place = {United States},
year = {Mon Jul 15 00:00:00 EDT 2013},
month = {Mon Jul 15 00:00:00 EDT 2013}
}