volume 11 issue 6 pages 2106-2112

How Bulk Sensitive is Hard X-ray Photoelectron Spectroscopy: Accounting for the Cathode–Electrolyte Interface when Addressing Oxygen Redox

Hyeseung Chung 2
Mateusz Zuba 3
Yixuan Li 2
Nathalie Pereira 4
B.D McCloskey 5, 6
Fanny Rodolakis 7
W.Q. Yang 8
Ying Meng 2
Tien-Lin Lee 9
Publication typeJournal Article
Publication date2020-02-26
scimago Q1
wos Q1
SJR1.394
CiteScore8.7
Impact factor4.6
ISSN19487185
Physical and Theoretical Chemistry
General Materials Science
Abstract
Sensitivity to the "bulk" oxygen core orbital makes hard X-ray photoelectron spectroscopy (HAXPES) an appealing technique for studying oxygen redox candidates. Various studies have reported an additional O 1s peak (530-531 eV) at high voltages, which has been considered a direct signature of the bulk oxygen redox process. Here, we find the emergence of a 530.4 eV O 1s HAXPES peak for three model cathodes-Li2MnO3, Li-rich NMC, and NMC 442-that shows no clear link to oxygen redox. Instead, the 530.4 eV peak for these three systems is attributed to transition metal reduction and electrolyte decomposition in the near-surface region. Claims of oxygen redox relying on photoelectron spectroscopy must explicitly account for the surface sensitivity of this technique and the extent of the cathode degradation layer.
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Lebens-Higgins Z. W. et al. How Bulk Sensitive is Hard X-ray Photoelectron Spectroscopy: Accounting for the Cathode–Electrolyte Interface when Addressing Oxygen Redox // Journal of Physical Chemistry Letters. 2020. Vol. 11. No. 6. pp. 2106-2112.
GOST all authors (up to 50) Copy
Lebens-Higgins Z. W., Chung H., Zuba M., Rana J., Li Y., Faenza N., Pereira N., McCloskey B., Rodolakis F., Yang W., Whittingham M. S., Amatucci G. G., Meng Y., Lee T., Piper L. F. How Bulk Sensitive is Hard X-ray Photoelectron Spectroscopy: Accounting for the Cathode–Electrolyte Interface when Addressing Oxygen Redox // Journal of Physical Chemistry Letters. 2020. Vol. 11. No. 6. pp. 2106-2112.
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1021/acs.jpclett.0c00229
UR - https://doi.org/10.1021/acs.jpclett.0c00229
TI - How Bulk Sensitive is Hard X-ray Photoelectron Spectroscopy: Accounting for the Cathode–Electrolyte Interface when Addressing Oxygen Redox
T2 - Journal of Physical Chemistry Letters
AU - Lebens-Higgins, Zachary W.
AU - Chung, Hyeseung
AU - Zuba, Mateusz
AU - Rana, Jatinkumar
AU - Li, Yixuan
AU - Faenza, Nicholas
AU - Pereira, Nathalie
AU - McCloskey, B.D
AU - Rodolakis, Fanny
AU - Yang, W.Q.
AU - Whittingham, M. Stanley
AU - Amatucci, Glenn G
AU - Meng, Ying
AU - Lee, Tien-Lin
AU - Piper, Louis F.J.
PY - 2020
DA - 2020/02/26
PB - American Chemical Society (ACS)
SP - 2106-2112
IS - 6
VL - 11
PMID - 32101006
SN - 1948-7185
ER -
BibTex |
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BibTex (up to 50 authors) Copy
@article{2020_Lebens-Higgins,
author = {Zachary W. Lebens-Higgins and Hyeseung Chung and Mateusz Zuba and Jatinkumar Rana and Yixuan Li and Nicholas Faenza and Nathalie Pereira and B.D McCloskey and Fanny Rodolakis and W.Q. Yang and M. Stanley Whittingham and Glenn G Amatucci and Ying Meng and Tien-Lin Lee and Louis F.J. Piper},
title = {How Bulk Sensitive is Hard X-ray Photoelectron Spectroscopy: Accounting for the Cathode–Electrolyte Interface when Addressing Oxygen Redox},
journal = {Journal of Physical Chemistry Letters},
year = {2020},
volume = {11},
publisher = {American Chemical Society (ACS)},
month = {feb},
url = {https://doi.org/10.1021/acs.jpclett.0c00229},
number = {6},
pages = {2106--2112},
doi = {10.1021/acs.jpclett.0c00229}
}
MLA
Cite this
MLA Copy
Lebens-Higgins, Zachary W., et al. “How Bulk Sensitive is Hard X-ray Photoelectron Spectroscopy: Accounting for the Cathode–Electrolyte Interface when Addressing Oxygen Redox.” Journal of Physical Chemistry Letters, vol. 11, no. 6, Feb. 2020, pp. 2106-2112. https://doi.org/10.1021/acs.jpclett.0c00229.