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Rational Design of ...
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Zhang, LonghaiAnhui university
(författare)
Rational Design of Multinary Metal Chalcogenide Bi0.4Sb1.6Te3 Nanocrystals for Efficient Potassium Storage
Nummerbeteckningar
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LIBRIS-ID:oai:lup.lub.lu.se:84aaf6b8-3ba7-42a6-a754-5106d79fea51
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https://lup.lub.lu.se/record/84aaf6b8-3ba7-42a6-a754-5106d79fea51URI
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https://doi.org/10.1002/adma.202313835DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
Anmärkningar
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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.
Ämnesord och genrebeteckningar
Biuppslag (personer, institutioner, konferenser, titlar ...)
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Liu, JiatuLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)ji2528li
(författare)
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Zhai, YunmingAnhui university
(författare)
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Zhang, ShilinUniversity of Adelaide
(författare)
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Wang, WeiAnhui university
(författare)
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Li, GuanjieUniversity of Adelaide
(författare)
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Sun, LiangUniversity of Adelaide
(författare)
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Li, HongbaoAnhui university
(författare)
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Qi, Shuo
(författare)
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Chen, Shuangqiang
(författare)
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Wang, RuiAnhui university
(författare)
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Ma, QuanweiAnhui university
(författare)
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Just, JustusLund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory(Swepub:lu)ju5031ju
(författare)
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Zhang, ChaofengAnhui university
(författare)
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Anhui universityMAX IV-laboratoriet
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:Advanced Materials0935-9648
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Till lärosätets databas
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Zhang, Longhai
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Liu, Jiatu
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Zhai, Yunming
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Zhang, Shilin
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Wang, Wei
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Li, Guanjie
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visa fler...
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Sun, Liang
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Li, Hongbao
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Qi, Shuo
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Chen, Shuangqian ...
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Wang, Rui
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Ma, Quanwei
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Just, Justus
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Zhang, Chaofeng
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- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Materialkemi
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Advanced Materia ...
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Lunds universitet