Unconventional Mn Vacancies in Mn–Fe Prussian Blue Analogs: Suppressing Jahn-Teller Distortion for Ultrastable Sodium Storage

Yang Shang; Xiaoxia Li; Jiajia Song; Shaozhuan Huang; Zhao Yang; Zhichuan J. Xu; Hui Ying Yang

doi:10.1016/j.chempr.2020.05.004

Unconventional Mn Vacancies in Mn–Fe Prussian Blue Analogs: Suppressing Jahn-Teller Distortion for Ultrastable Sodium Storage

Yang Shang, Xiaoxia Li, Jiajia Song, Shaozhuan Huang, Zhao Yang, Zhichuan J. Xu, Hui Ying Yang^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

251 Citations (Scopus)

Abstract

We introduce cation Mn vacancies on the surface of Mn-based PBAs (NMF) on the basis of a strong chelating effect. The strong chelation between Na₂EDTA and Mn atoms enables Na₂EDTA to remove the Mn atoms from the crystal lattice of NMF. The Mn vacancies restrain the movement of Mn−N bonds and thereby mitigate the Jahn-Teller distortion of Mn−N₆ octahedra, leading to highly reversible phase transitions of NMF from monoclinic to cubic and tetragonal phase and a stable electrochemical performance of SIBs.

Original language	English
Pages (from-to)	1804-1818
Number of pages	15
Journal	Chem
Volume	6
Issue number	7
DOIs	https://doi.org/10.1016/j.chempr.2020.05.004
Publication status	Published - Jul 9 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Elsevier Inc.

ASJC Scopus Subject Areas

General Chemistry
Biochemistry
Environmental Chemistry
General Chemical Engineering
Biochemistry, medical
Materials Chemistry

Keywords

in situ XRD
Jahn-Teller distortion
Mn vacancies
SDG7: Affordable and clean energy
sodium-ion batteries
strong chelating agent

Access to Document

10.1016/j.chempr.2020.05.004

Cite this

@article{4efffd0740c641c89d0b8c0a528c671f,

title = "Unconventional Mn Vacancies in Mn–Fe Prussian Blue Analogs: Suppressing Jahn-Teller Distortion for Ultrastable Sodium Storage",

abstract = "We introduce cation Mn vacancies on the surface of Mn-based PBAs (NMF) on the basis of a strong chelating effect. The strong chelation between Na2EDTA and Mn atoms enables Na2EDTA to remove the Mn atoms from the crystal lattice of NMF. The Mn vacancies restrain the movement of Mn−N bonds and thereby mitigate the Jahn-Teller distortion of Mn−N6 octahedra, leading to highly reversible phase transitions of NMF from monoclinic to cubic and tetragonal phase and a stable electrochemical performance of SIBs.",

keywords = "in situ XRD, Jahn-Teller distortion, Mn vacancies, SDG7: Affordable and clean energy, sodium-ion batteries, strong chelating agent",

author = "Yang Shang and Xiaoxia Li and Jiajia Song and Shaozhuan Huang and Zhao Yang and Xu, {Zhichuan J.} and Yang, {Hui Ying}",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier Inc.",

year = "2020",

month = jul,

day = "9",

doi = "10.1016/j.chempr.2020.05.004",

language = "English",

volume = "6",

pages = "1804--1818",

journal = "Chem",

issn = "2451-9308",

publisher = "Elsevier Inc.",

number = "7",

}

TY - JOUR

T1 - Unconventional Mn Vacancies in Mn–Fe Prussian Blue Analogs

T2 - Suppressing Jahn-Teller Distortion for Ultrastable Sodium Storage

AU - Shang, Yang

AU - Li, Xiaoxia

AU - Song, Jiajia

AU - Huang, Shaozhuan

AU - Yang, Zhao

AU - Xu, Zhichuan J.

AU - Yang, Hui Ying

PY - 2020/7/9

Y1 - 2020/7/9

N2 - We introduce cation Mn vacancies on the surface of Mn-based PBAs (NMF) on the basis of a strong chelating effect. The strong chelation between Na2EDTA and Mn atoms enables Na2EDTA to remove the Mn atoms from the crystal lattice of NMF. The Mn vacancies restrain the movement of Mn−N bonds and thereby mitigate the Jahn-Teller distortion of Mn−N6 octahedra, leading to highly reversible phase transitions of NMF from monoclinic to cubic and tetragonal phase and a stable electrochemical performance of SIBs.

AB - We introduce cation Mn vacancies on the surface of Mn-based PBAs (NMF) on the basis of a strong chelating effect. The strong chelation between Na2EDTA and Mn atoms enables Na2EDTA to remove the Mn atoms from the crystal lattice of NMF. The Mn vacancies restrain the movement of Mn−N bonds and thereby mitigate the Jahn-Teller distortion of Mn−N6 octahedra, leading to highly reversible phase transitions of NMF from monoclinic to cubic and tetragonal phase and a stable electrochemical performance of SIBs.

KW - in situ XRD

KW - Jahn-Teller distortion

KW - Mn vacancies

KW - SDG7: Affordable and clean energy

KW - sodium-ion batteries

KW - strong chelating agent

UR - http://www.scopus.com/inward/record.url?scp=85086650413&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85086650413&partnerID=8YFLogxK

U2 - 10.1016/j.chempr.2020.05.004

DO - 10.1016/j.chempr.2020.05.004

M3 - Article

AN - SCOPUS:85086650413

SN - 2451-9308

VL - 6

SP - 1804

EP - 1818

JO - Chem

JF - Chem

IS - 7

ER -

Unconventional Mn Vacancies in Mn–Fe Prussian Blue Analogs: Suppressing Jahn-Teller Distortion for Ultrastable Sodium Storage

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

Access to Document

Other files and links

Fingerprint

Cite this