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Rational Design of Multinary Metal Chalcogenide Bi0.4Sb1.6Te3 Nanocrystals for Efficient Potassium Storage

Zhang, Longhai ; Liu, Jiatu LU ; Zhai, Yunming ; Zhang, Shilin ; Wang, Wei ; Li, Guanjie ; Sun, Liang ; Li, Hongbao ; Qi, Shuo and Chen, Shuangqiang , et al. (2024) In Advanced Materials 36(23).
Abstract

Multinary metal chalcogenides hold considerable promise for high-energy potassium storage due to their numerous redox reactions. However, challenges arise from issues such as volume expansion and sluggish kinetics. Here, a design featuring a layered ternary Bi0.4Sb1.6Te3 anchored on graphene layers as a composite anode, where Bi atoms act as a lattice softening agent on Sb, is presented. Benefiting from the lattice arrangement in Bi0.4Sb1.6Te3 and structure, Bi0.4Sb1.6Te3/graphene exhibits a mitigated expansion of 28% during the potassiation/depotassiation process and demonstrates facile K+ ion transfer kinetics, enabling... (More)

Multinary metal chalcogenides hold considerable promise for high-energy potassium storage due to their numerous redox reactions. However, challenges arise from issues such as volume expansion and sluggish kinetics. Here, a design featuring a layered ternary Bi0.4Sb1.6Te3 anchored on graphene layers as a composite anode, where Bi atoms act as a lattice softening agent on Sb, is presented. Benefiting from the lattice arrangement in Bi0.4Sb1.6Te3 and structure, Bi0.4Sb1.6Te3/graphene exhibits a mitigated expansion of 28% during the potassiation/depotassiation process and demonstrates facile K+ ion transfer kinetics, enabling long-term durability of 500 cycles at various high rates. Operando synchrotron diffraction patterns and spectroscopies including in situ Raman, ex situ adsorption, and X-ray photoelectron reveal multiple conversion and alloying/dealloying reactions for potassium storage at the atomic level. In addition, both theoretical calculations and electrochemical examinations elucidate the K+ migration pathways and indicate a reduction in energy barriers within Bi0.4Sb1.6Te3/graphene, thereby suggesting enhanced diffusion kinetics for K+. These findings provide insight in the design of durable high-energy multinary tellurides for potassium storage.

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type
Contribution to journal
publication status
published
subject
keywords
BiSbTe anode, multinary metal chalcogenide, potassium ion batteries, synergetic effect
in
Advanced Materials
volume
36
issue
23
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:85186949374
  • pmid:38427844
ISSN
0935-9648
DOI
10.1002/adma.202313835
language
English
LU publication?
yes
id
84aaf6b8-3ba7-42a6-a754-5106d79fea51
date added to LUP
2024-04-09 14:38:06
date last changed
2025-02-04 11:54:41
@article{84aaf6b8-3ba7-42a6-a754-5106d79fea51,
  abstract     = {{<p>Multinary metal chalcogenides hold considerable promise for high-energy potassium storage due to their numerous redox reactions. However, challenges arise from issues such as volume expansion and sluggish kinetics. Here, a design featuring a layered ternary Bi<sub>0.4</sub>Sb<sub>1.6</sub>Te<sub>3</sub> anchored on graphene layers as a composite anode, where Bi atoms act as a lattice softening agent on Sb, is presented. Benefiting from the lattice arrangement in Bi<sub>0.4</sub>Sb<sub>1.6</sub>Te<sub>3</sub> and structure, Bi<sub>0.4</sub>Sb<sub>1.6</sub>Te<sub>3</sub>/graphene exhibits a mitigated expansion of 28% during the potassiation/depotassiation process and demonstrates facile K<sup>+</sup> ion transfer kinetics, enabling long-term durability of 500 cycles at various high rates. Operando synchrotron diffraction patterns and spectroscopies including in situ Raman, ex situ adsorption, and X-ray photoelectron reveal multiple conversion and alloying/dealloying reactions for potassium storage at the atomic level. In addition, both theoretical calculations and electrochemical examinations elucidate the K<sup>+</sup> migration pathways and indicate a reduction in energy barriers within Bi<sub>0.4</sub>Sb<sub>1.6</sub>Te<sub>3</sub>/graphene, thereby suggesting enhanced diffusion kinetics for K<sup>+</sup>. These findings provide insight in the design of durable high-energy multinary tellurides for potassium storage.</p>}},
  author       = {{Zhang, Longhai and Liu, Jiatu and Zhai, Yunming and Zhang, Shilin and Wang, Wei and Li, Guanjie and Sun, Liang and Li, Hongbao and Qi, Shuo and Chen, Shuangqiang and Wang, Rui and Ma, Quanwei and Just, Justus and Zhang, Chaofeng}},
  issn         = {{0935-9648}},
  keywords     = {{BiSbTe anode; multinary metal chalcogenide; potassium ion batteries; synergetic effect}},
  language     = {{eng}},
  number       = {{23}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Advanced Materials}},
  title        = {{Rational Design of Multinary Metal Chalcogenide Bi<sub>0.4</sub>Sb<sub>1.6</sub>Te<sub>3</sub> Nanocrystals for Efficient Potassium Storage}},
  url          = {{http://dx.doi.org/10.1002/adma.202313835}},
  doi          = {{10.1002/adma.202313835}},
  volume       = {{36}},
  year         = {{2024}},
}