Layered P3-type K₀.₄Fe₀.₁Mn₀.₈Ti₀.₁O₂ as a low-cost and zero-strain electrode material for both potassium and sodium storage

Layered transition metal oxides are ideal Na+/K+ host materials due to their high theoretical capacities and appropriate working potentials, and the pursuit of cost-effective and environmentally friendly alternatives with high energy density and structural stability has remained a hot topic. Herein,...

Full description

Saved in:
Bibliographic Details
Main Authors: Zhang, Xinyuan, Yu, Dongxu, Wei, Zhixuan, Chen, Nan, Chen, Gang, Shen, Zexiang, Du, Fei
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2022
Subjects:
Online Access:https://hdl.handle.net/10356/160092
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-160092
record_format dspace
spelling sg-ntu-dr.10356-1600922022-07-12T08:37:25Z Layered P3-type K₀.₄Fe₀.₁Mn₀.₈Ti₀.₁O₂ as a low-cost and zero-strain electrode material for both potassium and sodium storage Zhang, Xinyuan Yu, Dongxu Wei, Zhixuan Chen, Nan Chen, Gang Shen, Zexiang Du, Fei School of Physical and Mathematical Sciences Engineering::Materials Layered Cathode Potassium-Ion Batteries Layered transition metal oxides are ideal Na+/K+ host materials due to their high theoretical capacities and appropriate working potentials, and the pursuit of cost-effective and environmentally friendly alternatives with high energy density and structural stability has remained a hot topic. Herein, we design and synthesize a low-cost and zero-strain cathode material, P3-type K0.4Fe0.1Mn0.8Ti0.1O2, which demonstrates superior properties for both potassium and sodium storage. The cathode delivers a reversible potassium storage capacity of 117 mA h g-1 at 20 mA g-1 and a fast rate capability of 71 mA h g-1 at 1000 mA g-1. In situ X-ray diffraction reveals a solid-solution transition with a negligible volume change of 0.5% upon K+ insertion/deinsertion that ensures long cycling stability over 300 cycles. When the material is employed for sodium storage, a spontaneous ion-exchange process with Na+-containing electrolytes occurs. Thanks to the positive effects of the remaining K+ ions that protect the layered structure from collapse as well as expand the interlayer structure, and the resulting K0.12Na0.28Fe0.1Mn0.8Ti0.1O2 demonstrates a high sodium storage capacity of 160 mA h g-1 and superior cycling stability with capacity retention of 81% after 300 cycles as well as fast kinetics. This work was supported by the National Natural Science Foundation of China with Grant No. 51972142 and the Department of Science and Technology of Jilin Province (Grant Nos. 20180101211JC and 20190701020GH). We also thank the Graduate Innovation Fund of Jilin University (101832020CX077) and the Fundamental Research Funds for the Center Universities. 2022-07-12T08:37:24Z 2022-07-12T08:37:24Z 2021 Journal Article Zhang, X., Yu, D., Wei, Z., Chen, N., Chen, G., Shen, Z. & Du, F. (2021). Layered P3-type K₀.₄Fe₀.₁Mn₀.₈Ti₀.₁O₂ as a low-cost and zero-strain electrode material for both potassium and sodium storage. ACS Applied Materials and Interfaces, 13(16), 18897-18904. https://dx.doi.org/10.1021/acsami.1c03233 1944-8244 https://hdl.handle.net/10356/160092 10.1021/acsami.1c03233 33852287 2-s2.0-85105058268 16 13 18897 18904 en ACS Applied Materials and Interfaces © 2021 American Chemical Society. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Engineering::Materials
Layered Cathode
Potassium-Ion Batteries
spellingShingle Engineering::Materials
Layered Cathode
Potassium-Ion Batteries
Zhang, Xinyuan
Yu, Dongxu
Wei, Zhixuan
Chen, Nan
Chen, Gang
Shen, Zexiang
Du, Fei
Layered P3-type K₀.₄Fe₀.₁Mn₀.₈Ti₀.₁O₂ as a low-cost and zero-strain electrode material for both potassium and sodium storage
description Layered transition metal oxides are ideal Na+/K+ host materials due to their high theoretical capacities and appropriate working potentials, and the pursuit of cost-effective and environmentally friendly alternatives with high energy density and structural stability has remained a hot topic. Herein, we design and synthesize a low-cost and zero-strain cathode material, P3-type K0.4Fe0.1Mn0.8Ti0.1O2, which demonstrates superior properties for both potassium and sodium storage. The cathode delivers a reversible potassium storage capacity of 117 mA h g-1 at 20 mA g-1 and a fast rate capability of 71 mA h g-1 at 1000 mA g-1. In situ X-ray diffraction reveals a solid-solution transition with a negligible volume change of 0.5% upon K+ insertion/deinsertion that ensures long cycling stability over 300 cycles. When the material is employed for sodium storage, a spontaneous ion-exchange process with Na+-containing electrolytes occurs. Thanks to the positive effects of the remaining K+ ions that protect the layered structure from collapse as well as expand the interlayer structure, and the resulting K0.12Na0.28Fe0.1Mn0.8Ti0.1O2 demonstrates a high sodium storage capacity of 160 mA h g-1 and superior cycling stability with capacity retention of 81% after 300 cycles as well as fast kinetics.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Zhang, Xinyuan
Yu, Dongxu
Wei, Zhixuan
Chen, Nan
Chen, Gang
Shen, Zexiang
Du, Fei
format Article
author Zhang, Xinyuan
Yu, Dongxu
Wei, Zhixuan
Chen, Nan
Chen, Gang
Shen, Zexiang
Du, Fei
author_sort Zhang, Xinyuan
title Layered P3-type K₀.₄Fe₀.₁Mn₀.₈Ti₀.₁O₂ as a low-cost and zero-strain electrode material for both potassium and sodium storage
title_short Layered P3-type K₀.₄Fe₀.₁Mn₀.₈Ti₀.₁O₂ as a low-cost and zero-strain electrode material for both potassium and sodium storage
title_full Layered P3-type K₀.₄Fe₀.₁Mn₀.₈Ti₀.₁O₂ as a low-cost and zero-strain electrode material for both potassium and sodium storage
title_fullStr Layered P3-type K₀.₄Fe₀.₁Mn₀.₈Ti₀.₁O₂ as a low-cost and zero-strain electrode material for both potassium and sodium storage
title_full_unstemmed Layered P3-type K₀.₄Fe₀.₁Mn₀.₈Ti₀.₁O₂ as a low-cost and zero-strain electrode material for both potassium and sodium storage
title_sort layered p3-type k₀.₄fe₀.₁mn₀.₈ti₀.₁o₂ as a low-cost and zero-strain electrode material for both potassium and sodium storage
publishDate 2022
url https://hdl.handle.net/10356/160092
_version_ 1738844832086884352