Nano-engineering induced Bi dots in situ anchored into modified porous carbon with superior sodium ion storage

Chen, J; Xiao, J; Li, J; Gao, H; Guo, X; Liu, H; Wang, G

Nano-engineering induced Bi dots in situ anchored into modified porous carbon with superior sodium ion storage

Chen, J Xiao, J Li, J Gao, H Guo, X

Liu, H

Wang, G

Permalink

Publisher:: ROYAL SOC CHEMISTRY
Publication Type:: Journal Article
Citation:: Journal of Materials Chemistry A, 2022, 10, (38), pp. 20635-20645
Issue Date:: 2022-08-31

Closed Access

	Filename	Description	Size
	d2ta06256a.pdf	Published version	8.2 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Chen, J
dc.contributor.author	Xiao, J
dc.contributor.author	Li, J
dc.contributor.author	Gao, H
dc.contributor.author	Guo, X https://orcid.org/0000-0001-7771-0463
dc.contributor.author	Liu, H https://orcid.org/0000-0003-0266-9472
dc.contributor.author	Wang, G
dc.date.accessioned	2023-06-05T07:13:33Z
dc.date.available	2023-06-05T07:13:33Z
dc.date.issued	2022-08-31
dc.identifier.citation	Journal of Materials Chemistry A, 2022, 10, (38), pp. 20635-20645
dc.identifier.issn	2050-7488
dc.identifier.issn	2050-7496
dc.identifier.uri	http://hdl.handle.net/10453/170655
dc.description.abstract	Bismuth-based materials have aroused extensive interest in energy storage systems owing to their high volumetric capacity, relatively low reaction potential, and minimum volume changes compared with their alloy counterparts. However, the cumbersome synthetic routes and low initial coulombic efficiency (ICE) are the main issues that still need to be resolved. Herein, Bi dots in situ embedded in a KOH modified carbon matrix (Bi@MC) have been successfully fabricated via a facile annealing process. The KOH modification endows the carbon matrix with a strong absorption ability, which can further suppress the agglomeration of Bi and lead to uniformly distributed Bi dots (3-18 nm). For the half-cell test, a high ICE (88.13%), record ultra-stable cycle life (100% capacity retention over 10 000 cycles at 2.5 A g−1) and a superior rate performance (345 mA h g−1 at 50 A g−1) can be realized. Furthermore, the Na3V2(PO4)3\|Bi@MC full cell delivers an excellent energy density of up to 195 W h kg−1 and behaves with no capacity decay over 600 cycles.
dc.language	English
dc.publisher	ROYAL SOC CHEMISTRY
dc.relation	http://purl.org/au-research/grants/arc/DP180102297
dc.relation	http://purl.org/au-research/grants/arc/FT180100705
dc.relation.ispartof	Journal of Materials Chemistry A
dc.relation.isbasedon	10.1039/d2ta06256a
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0303 Macromolecular and Materials Chemistry, 0912 Materials Engineering, 0915 Interdisciplinary Engineering
dc.title	Nano-engineering induced Bi dots in situ anchored into modified porous carbon with superior sodium ion storage
dc.type	Journal Article
utslib.citation.volume	10
utslib.for	0303 Macromolecular and Materials Chemistry
utslib.for	0912 Materials Engineering
utslib.for	0915 Interdisciplinary Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access	*
dc.date.updated	2023-06-05T07:13:29Z
pubs.issue	38
pubs.publication-status	Published
pubs.volume	10
utslib.citation.issue	38

Abstract:

Bismuth-based materials have aroused extensive interest in energy storage systems owing to their high volumetric capacity, relatively low reaction potential, and minimum volume changes compared with their alloy counterparts. However, the cumbersome synthetic routes and low initial coulombic efficiency (ICE) are the main issues that still need to be resolved. Herein, Bi dots in situ embedded in a KOH modified carbon matrix (Bi@MC) have been successfully fabricated via a facile annealing process. The KOH modification endows the carbon matrix with a strong absorption ability, which can further suppress the agglomeration of Bi and lead to uniformly distributed Bi dots (3-18 nm). For the half-cell test, a high ICE (88.13%), record ultra-stable cycle life (100% capacity retention over 10 000 cycles at 2.5 A g−1) and a superior rate performance (345 mA h g−1 at 50 A g−1) can be realized. Furthermore, the Na3V2(PO4)3|Bi@MC full cell delivers an excellent energy density of up to 195 W h kg−1 and behaves with no capacity decay over 600 cycles.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/170655