Bi2Se3@C Rod-like Architecture with Outstanding ElectrochemicalProperties in Lithium/Potassium-Ion Batteries

Yang, T; Liu, J; Yang, D; Mao, Q; Zhong, J; Yuan, Y; Li, X; Zheng, X; Ji, Z; Liu, H; Wang, G; Zheng, R

Bi2Se3@C Rod-like Architecture with Outstanding ElectrochemicalProperties in Lithium/Potassium-Ion Batteries

Yang, T Liu, J Yang, D Mao, Q Zhong, J Yuan, Y Li, X Zheng, X Ji, Z Liu, H

Wang, G

Zheng, R

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Publisher:: American Chemical Society (ACS)
Publication Type:: Journal Article
Citation:: ACS Applied Energy Materials, 2020, 3, (11), pp. 11073-11081
Issue Date:: 2020-01-01

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Field	Value	Language
dc.contributor.author	Yang, T
dc.contributor.author	Liu, J
dc.contributor.author	Yang, D
dc.contributor.author	Mao, Q
dc.contributor.author	Zhong, J
dc.contributor.author	Yuan, Y
dc.contributor.author	Li, X
dc.contributor.author	Zheng, X
dc.contributor.author	Ji, Z
dc.contributor.author	Liu, H https://orcid.org/0000-0003-0266-9472
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578
dc.contributor.author	Zheng, R
dc.date.accessioned	2020-12-29T01:27:35Z
dc.date.available	2020-12-29T01:27:35Z
dc.date.issued	2020-01-01
dc.identifier.citation	ACS Applied Energy Materials, 2020, 3, (11), pp. 11073-11081
dc.identifier.issn	2574-0962
dc.identifier.issn	2574-0962
dc.identifier.uri	http://hdl.handle.net/10453/144981
dc.description.abstract	© 2020 American Chemical Society. Lithium-ion batteries (LIBs) and potassium-ion batteries (KIBs) have broad application prospects in the fields of small/medium-sized electronic products and large-scale energy storage. However, the fast and low reversible capacity decay, poor rate capacity, and slow charge storage kinetics severely affect their large-scale applications. In this work, a Bi2Se3@C rod-like architecture was synthesized through an in situ selenization method using metal-organic frameworks as the precursor. The micro/nanoporous carbon structure not only offers a stable matrix to ensure electrode integrity but also absorbs a large amount of Bi2Se3 changes during repeated lithiation/potassization processes. In addition, the porous structure frame prevents the agglomeration of Bi2Se3 nanoparticles with larger surface energy and shortens the diffusion path of ion transport, thereby improving the rate performance. Therefore, Bi2Se3@C shows outstanding lithium/potassium storage properties when applied in lithium/potassium-ion batteries. The study of the electrochemical reaction mechanism shows that partial rhombohedral Bi2Se3 transformed into orthorhombic Bi2Se3 after cycling. Pseudocapacitance contribution promotes the enhancement of the specific capacity and rate properties of the Bi2Se3@C electrode. The excellent electrochemical performance of the Bi2Se3@C micro/nanostructure shows that it has promising potential as lithium/potassium-ion battery anode materials.
dc.language	en
dc.publisher	American Chemical Society (ACS)
dc.relation.ispartof	ACS Applied Energy Materials
dc.relation.isbasedon	10.1021/acsaem.0c02056
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Bi2Se3@C Rod-like Architecture with Outstanding ElectrochemicalProperties in Lithium/Potassium-Ion Batteries
dc.type	Journal Article
utslib.citation.volume	3
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney
utslib.copyright.status	closed_access	*
dc.date.updated	2020-12-29T01:27:13Z
pubs.issue	11
pubs.publication-status	Published
pubs.volume	3
utslib.citation.issue	11

Abstract:

© 2020 American Chemical Society. Lithium-ion batteries (LIBs) and potassium-ion batteries (KIBs) have broad application prospects in the fields of small/medium-sized electronic products and large-scale energy storage. However, the fast and low reversible capacity decay, poor rate capacity, and slow charge storage kinetics severely affect their large-scale applications. In this work, a Bi2Se3@C rod-like architecture was synthesized through an in situ selenization method using metal-organic frameworks as the precursor. The micro/nanoporous carbon structure not only offers a stable matrix to ensure electrode integrity but also absorbs a large amount of Bi2Se3 changes during repeated lithiation/potassization processes. In addition, the porous structure frame prevents the agglomeration of Bi2Se3 nanoparticles with larger surface energy and shortens the diffusion path of ion transport, thereby improving the rate performance. Therefore, Bi2Se3@C shows outstanding lithium/potassium storage properties when applied in lithium/potassium-ion batteries. The study of the electrochemical reaction mechanism shows that partial rhombohedral Bi2Se3 transformed into orthorhombic Bi2Se3 after cycling. Pseudocapacitance contribution promotes the enhancement of the specific capacity and rate properties of the Bi2Se3@C electrode. The excellent electrochemical performance of the Bi2Se3@C micro/nanostructure shows that it has promising potential as lithium/potassium-ion battery anode materials.

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http://hdl.handle.net/10453/144981