Vacancy and Composition Engineering of Manganese Hexacyanoferrate for Sodium-Ion Storage

Deia Abd El-Hady; Yuxiang Lyu; Sikai Zhan; Jixiang Yang; Yian Wang; Fei Yang; Qinglan Zhao; Meng Gu; Minhua Shao

doi:10.1021/acsaem.2c01085

Vacancy and Composition Engineering of Manganese Hexacyanoferrate for Sodium-Ion Storage

Deia Abd El-Hady, Yuxiang Lyu, Sikai Zhan, Jixiang Yang, Yian Wang, Fei Yang, Qinglan Zhao^*, Meng Gu, Minhua Shao

^*Corresponding author for this work

Department of Chemical and Biological Engineering

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

23 Citations (Scopus)

Abstract

Manganese hexacyanoferrate (MnHCF) with an open framework is suitable for accommodating sodium ions. However, it suffers from severe capacity decay caused by the large structural deformation resulting from the Jahn-Teller (J-T) distortion of Mn-N₆octahedra. By taking advantage of the strong chelation between EDTA and Mn ions, a strategy employing Mn vacancies (V_Mn) in combination with the introduction of Ni is proposed to suppress the J-T distortion of MnHCF. A Ni-doped MnHCF with V_Mnand a low crystal water content (K_1.95Na_0.05Ni_0.02Mn_0.93[Fe(CN)₆] □_0.05·0.41H₂O) is prepared, which delivered an improved capacity retention of 80% at 0.5C after 100 cycles. This work provides a combined vacancy and composition engineering strategy for effective suppression of J-T distortion in the MnHCF framework toward high-performance sodium-ion batteries.

Original language	English
Pages (from-to)	8547-8553
Number of pages	7
Journal	ACS Applied Energy Materials
Volume	5
Issue number	7
DOIs	https://doi.org/10.1021/acsaem.2c01085
Publication status	Published - 25 Jul 2022

Bibliographical note

Publisher Copyright:
© 2022 American Chemical Society. All rights reserved.

Keywords

Jahn-Teller distortion
Prussian blue analogue
cycling stability
manganese hexacyanoferrate
sodium-ion battery

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1021/acsaem.2c01085

Cite this

@article{7c299275f0844851af4ff60a25c12221,

title = "Vacancy and Composition Engineering of Manganese Hexacyanoferrate for Sodium-Ion Storage",

abstract = "Manganese hexacyanoferrate (MnHCF) with an open framework is suitable for accommodating sodium ions. However, it suffers from severe capacity decay caused by the large structural deformation resulting from the Jahn-Teller (J-T) distortion of Mn-N6octahedra. By taking advantage of the strong chelation between EDTA and Mn ions, a strategy employing Mn vacancies (VMn) in combination with the introduction of Ni is proposed to suppress the J-T distortion of MnHCF. A Ni-doped MnHCF with VMnand a low crystal water content (K1.95Na0.05Ni0.02Mn0.93[Fe(CN)6] □0.05·0.41H2O) is prepared, which delivered an improved capacity retention of 80\% at 0.5C after 100 cycles. This work provides a combined vacancy and composition engineering strategy for effective suppression of J-T distortion in the MnHCF framework toward high-performance sodium-ion batteries.",

keywords = "Jahn-Teller distortion, Prussian blue analogue, cycling stability, manganese hexacyanoferrate, sodium-ion battery",

author = "El-Hady, \{Deia Abd\} and Yuxiang Lyu and Sikai Zhan and Jixiang Yang and Yian Wang and Fei Yang and Qinglan Zhao and Meng Gu and Minhua Shao",

year = "2022",

month = jul,

day = "25",

doi = "10.1021/acsaem.2c01085",

language = "English",

volume = "5",

pages = "8547--8553",

journal = "ACS Applied Energy Materials",

issn = "2574-0962",

publisher = "American Chemical Society",

number = "7",

}

TY - JOUR

T1 - Vacancy and Composition Engineering of Manganese Hexacyanoferrate for Sodium-Ion Storage

AU - El-Hady, Deia Abd

AU - Lyu, Yuxiang

AU - Zhan, Sikai

AU - Yang, Jixiang

AU - Wang, Yian

AU - Yang, Fei

AU - Zhao, Qinglan

AU - Gu, Meng

AU - Shao, Minhua

PY - 2022/7/25

Y1 - 2022/7/25

N2 - Manganese hexacyanoferrate (MnHCF) with an open framework is suitable for accommodating sodium ions. However, it suffers from severe capacity decay caused by the large structural deformation resulting from the Jahn-Teller (J-T) distortion of Mn-N6octahedra. By taking advantage of the strong chelation between EDTA and Mn ions, a strategy employing Mn vacancies (VMn) in combination with the introduction of Ni is proposed to suppress the J-T distortion of MnHCF. A Ni-doped MnHCF with VMnand a low crystal water content (K1.95Na0.05Ni0.02Mn0.93[Fe(CN)6] □0.05·0.41H2O) is prepared, which delivered an improved capacity retention of 80% at 0.5C after 100 cycles. This work provides a combined vacancy and composition engineering strategy for effective suppression of J-T distortion in the MnHCF framework toward high-performance sodium-ion batteries.

AB - Manganese hexacyanoferrate (MnHCF) with an open framework is suitable for accommodating sodium ions. However, it suffers from severe capacity decay caused by the large structural deformation resulting from the Jahn-Teller (J-T) distortion of Mn-N6octahedra. By taking advantage of the strong chelation between EDTA and Mn ions, a strategy employing Mn vacancies (VMn) in combination with the introduction of Ni is proposed to suppress the J-T distortion of MnHCF. A Ni-doped MnHCF with VMnand a low crystal water content (K1.95Na0.05Ni0.02Mn0.93[Fe(CN)6] □0.05·0.41H2O) is prepared, which delivered an improved capacity retention of 80% at 0.5C after 100 cycles. This work provides a combined vacancy and composition engineering strategy for effective suppression of J-T distortion in the MnHCF framework toward high-performance sodium-ion batteries.

KW - Jahn-Teller distortion

KW - Prussian blue analogue

KW - cycling stability

KW - manganese hexacyanoferrate

KW - sodium-ion battery

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000820796300001

UR - https://openalex.org/W4283321096

UR - https://www.scopus.com/pages/publications/85134550111

U2 - 10.1021/acsaem.2c01085

DO - 10.1021/acsaem.2c01085

M3 - Journal Article

SN - 2574-0962

VL - 5

SP - 8547

EP - 8553

JO - ACS Applied Energy Materials

JF - ACS Applied Energy Materials

IS - 7

ER -

Vacancy and Composition Engineering of Manganese Hexacyanoferrate for Sodium-Ion Storage

Abstract

Bibliographical note

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this