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

© 2024 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 23 vom: 28. Juni, Seite e2313835
1. Verfasser: Zhang, Longhai (VerfasserIn)
Weitere Verfasser: Liu, Jiatu, Zhai, Yunming, Zhang, Shilin, Wang, Wei, Li, Guanjie, Sun, Liang, Li, Hongbao, Qi, Shuo, Chen, Shuangqiang, Wang, Rui, Ma, Quanwei, Just, Justus, Zhang, Chaofeng
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article Bi0.4Sb1.6Te3 anode multinary metal chalcogenide potassium ion batteries synergetic effect
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520 |a 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 
650 4 |a Journal Article 
650 4 |a Bi0.4Sb1.6Te3 anode 
650 4 |a multinary metal chalcogenide 
650 4 |a potassium ion batteries 
650 4 |a synergetic effect 
700 1 |a Liu, Jiatu  |e verfasserin  |4 aut 
700 1 |a Zhai, Yunming  |e verfasserin  |4 aut 
700 1 |a Zhang, Shilin  |e verfasserin  |4 aut 
700 1 |a Wang, Wei  |e verfasserin  |4 aut 
700 1 |a Li, Guanjie  |e verfasserin  |4 aut 
700 1 |a Sun, Liang  |e verfasserin  |4 aut 
700 1 |a Li, Hongbao  |e verfasserin  |4 aut 
700 1 |a Qi, Shuo  |e verfasserin  |4 aut 
700 1 |a Chen, Shuangqiang  |e verfasserin  |4 aut 
700 1 |a Wang, Rui  |e verfasserin  |4 aut 
700 1 |a Ma, Quanwei  |e verfasserin  |4 aut 
700 1 |a Just, Justus  |e verfasserin  |4 aut 
700 1 |a Zhang, Chaofeng  |e verfasserin  |4 aut 
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773 1 8 |g volume:36  |g year:2024  |g number:23  |g day:28  |g month:06  |g pages:e2313835 
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