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Title: Redox chemistry of a binary transition metal oxide (AB 2 O 4 ): a study of the Cu 2+ /Cu 0 and Fe 3+ /Fe 0 interconversions observed upon lithiation in a CuFe 2 O 4 battery using X-ray absorption spectroscopy

Abstract

Copper ferrite, CuFe2 O 4, is a promising candidate for application as a high energy electrode material in lithium based batteries. Mechanistic insight on the electrochemical reduction and oxidation processes was gained through the first X-ray absorption spectroscopic study of lithiation and delithiation of CuFe2 O 4. A phase pure tetragonal CuFe2 O 4 material was prepared and characterized using laboratory and synchrotron X-ray diffraction, Raman spectroscopy, and transmission electron microscopy. We used ex situ X-ray absorption spectroscopy (XAS) measurements to study the battery redox processes at the Fe and Cu K-edges, using X-ray absorption near-edge structure (XANES), extended X-ray absorption fine structure (EXAFS), and transmission X-ray microscopy (TXM) spectroscopies. EXAFS analysis showed upon discharge, an initial conversion of 50% of the copper(II) to copper metal positioned outside of the spinel structure, followed by a migration of tetrahedral iron(III) cations to octahedral positions previously occupied by copper(II). Then, upon charging to 3.5 V, the copper metal remained in the metallic state, while iron metal oxidation to iron(III) was achieved. Our results provide new mechanistic insight regarding the evolution of the local coordination environments at the iron and copper centers upon discharging and charging.

Authors:
 [1];  [2];  [3];  [3];  [2];  [2];  [2];  [4];  [5];  [5]
  1. Stony Brook Univ., NY (United States). Dept. of Chemistry
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Energ Sciences Directorate
  3. Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering
  4. Stony Brook Univ., NY (United States). Dept. of Chemistry and Dept. of Materials Science and Engineering; Brookhaven National Lab. (BNL), Upton, NY (United States). Energ Sciences Directorate
  5. Stony Brook Univ., NY (United States). Dept. of Chemistry and Dept. of Materials Science and Engineering
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Mesoscale Transport Properties (m2M)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1336123
Report Number(s):
BNL-112584-2016-JA
Journal ID: ISSN 1463-9076; PPCPFQ
Grant/Contract Number:  
SC0012704; AC02-06CH11357; SC0012673
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Chemistry Chemical Physics. PCCP
Additional Journal Information:
Journal Volume: 18; Journal Issue: 25; Journal ID: ISSN 1463-9076
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; electrode; lithium; batteries; electrochemical; spectroscopic; microscopy

Citation Formats

Cama, Christina A., Pelliccione, Christopher J., Brady, Alexander B., Li, Jing, Stach, Eric A., Wang, Jiajun, Wang, Jun, Takeuchi, Esther S., Takeuchi, Kenneth J., and Marschilok, Amy C. Redox chemistry of a binary transition metal oxide (AB 2 O 4 ): a study of the Cu 2+ /Cu 0 and Fe 3+ /Fe 0 interconversions observed upon lithiation in a CuFe 2 O 4 battery using X-ray absorption spectroscopy. United States: N. p., 2016. Web. doi:10.1039/c6cp02974d.
Cama, Christina A., Pelliccione, Christopher J., Brady, Alexander B., Li, Jing, Stach, Eric A., Wang, Jiajun, Wang, Jun, Takeuchi, Esther S., Takeuchi, Kenneth J., & Marschilok, Amy C. Redox chemistry of a binary transition metal oxide (AB 2 O 4 ): a study of the Cu 2+ /Cu 0 and Fe 3+ /Fe 0 interconversions observed upon lithiation in a CuFe 2 O 4 battery using X-ray absorption spectroscopy. United States. https://doi.org/10.1039/c6cp02974d
Cama, Christina A., Pelliccione, Christopher J., Brady, Alexander B., Li, Jing, Stach, Eric A., Wang, Jiajun, Wang, Jun, Takeuchi, Esther S., Takeuchi, Kenneth J., and Marschilok, Amy C. 2016. "Redox chemistry of a binary transition metal oxide (AB 2 O 4 ): a study of the Cu 2+ /Cu 0 and Fe 3+ /Fe 0 interconversions observed upon lithiation in a CuFe 2 O 4 battery using X-ray absorption spectroscopy". United States. https://doi.org/10.1039/c6cp02974d. https://www.osti.gov/servlets/purl/1336123.
@article{osti_1336123,
title = {Redox chemistry of a binary transition metal oxide (AB 2 O 4 ): a study of the Cu 2+ /Cu 0 and Fe 3+ /Fe 0 interconversions observed upon lithiation in a CuFe 2 O 4 battery using X-ray absorption spectroscopy},
author = {Cama, Christina A. and Pelliccione, Christopher J. and Brady, Alexander B. and Li, Jing and Stach, Eric A. and Wang, Jiajun and Wang, Jun and Takeuchi, Esther S. and Takeuchi, Kenneth J. and Marschilok, Amy C.},
abstractNote = {Copper ferrite, CuFe2 O 4, is a promising candidate for application as a high energy electrode material in lithium based batteries. Mechanistic insight on the electrochemical reduction and oxidation processes was gained through the first X-ray absorption spectroscopic study of lithiation and delithiation of CuFe2 O 4. A phase pure tetragonal CuFe2 O 4 material was prepared and characterized using laboratory and synchrotron X-ray diffraction, Raman spectroscopy, and transmission electron microscopy. We used ex situ X-ray absorption spectroscopy (XAS) measurements to study the battery redox processes at the Fe and Cu K-edges, using X-ray absorption near-edge structure (XANES), extended X-ray absorption fine structure (EXAFS), and transmission X-ray microscopy (TXM) spectroscopies. EXAFS analysis showed upon discharge, an initial conversion of 50% of the copper(II) to copper metal positioned outside of the spinel structure, followed by a migration of tetrahedral iron(III) cations to octahedral positions previously occupied by copper(II). Then, upon charging to 3.5 V, the copper metal remained in the metallic state, while iron metal oxidation to iron(III) was achieved. Our results provide new mechanistic insight regarding the evolution of the local coordination environments at the iron and copper centers upon discharging and charging.},
doi = {10.1039/c6cp02974d},
url = {https://www.osti.gov/biblio/1336123}, journal = {Physical Chemistry Chemical Physics. PCCP},
issn = {1463-9076},
number = 25,
volume = 18,
place = {United States},
year = {Mon Jun 06 00:00:00 EDT 2016},
month = {Mon Jun 06 00:00:00 EDT 2016}
}

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Cited by: 18 works
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Works referencing / citing this record:

Evidence of a cubic iron sub-lattice in t-CuFe2O4 demonstrated by X-ray Absorption Fine Structure
journal, January 2018


Electrochemical (de)lithiation of silver ferrite and composites: mechanistic insights from ex situ, in situ, and operando X-ray techniques
journal, January 2017