Cobalt-Iron Decorated Tellurium Nanotubes for High Energy Density Supercapacitor

Altaee, A; Bhol, P; Swain, S; Samal, AK

Cobalt-Iron Decorated Tellurium Nanotubes for High Energy Density Supercapacitor

Altaee, A

Bhol, P Swain, S Samal, AK

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Publication Type:: Journal Article
Citation:: Materials Today Chemistry, 2022, 24, pp. 1-13
Issue Date:: 2022-04-12

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Field	Value	Language
dc.contributor.author	Altaee, A https://orcid.org/0000-0001-9764-3974
dc.contributor.author	Bhol, P
dc.contributor.author	Swain, S
dc.contributor.author	Samal, AK
dc.date.accessioned	2022-04-13T00:12:08Z
dc.date.available	2022-04-13T00:12:08Z
dc.date.issued	2022-04-12
dc.identifier.citation	Materials Today Chemistry, 2022, 24, pp. 1-13
dc.identifier.uri	http://hdl.handle.net/10453/156163
dc.description.abstract	We report the synthesis of cobalt-iron (Co-Fe) decorated tellurium nanotubes (Te NTs) using semiconductive Te NTs as a sacrificial template using the wet chemical method. The Co and Fe precursor concentration incorporated into Te NT plays a significant role in obtaining various bimetallic telluride structures. The one-dimensional (1-D) structure of Co-Fe decorated Te NTs with Te NTs in the backbone provides superior conductivity and exhibits high electrochemical performance with battery type electrode behaviour. The Co-Fe decorated Te NTs electrode is combined with the electric double-layer capacitors (EDLC) type electrode activated carbon (AC) to tune the energy density performance. The asymmetric assembly shows an excellent specific capacitance of 179.2 F g-1 (48.7 mAh g-1) at a current density of 0.9 A g-1 in 4 M KOH electrolyte. More importantly, it exhibits a maximum energy density of 62.1 Wh Kg-1 at a power density of 1138.2 W Kg-1 under a potential window of 1.58 V. This potential finding shows the significant applicability of Te NTs as a template for the synthesis of bimetallic tellurides with unique morphologies. The synergistic effect from multimetals and anisotropic morphology is beneficial for energy storage applications.
dc.language	en
dc.relation.ispartof	Materials Today Chemistry
dc.relation.isbasedon	10.1016/j.mtchem.2022.100871
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject	0303 Macromolecular and Materials Chemistry, 0912 Materials Engineering
dc.title	Cobalt-Iron Decorated Tellurium Nanotubes for High Energy Density Supercapacitor
dc.type	Journal Article
utslib.citation.volume	24
utslib.for	0303 Macromolecular and Materials Chemistry
utslib.for	0912 Materials Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
pubs.consider-herdc	false
utslib.copyright.embargo	2023-04-12T00:00:00+1000Z
dc.date.updated	2022-04-13T00:11:57Z
pubs.publication-status	Published
pubs.volume	24

Abstract:

We report the synthesis of cobalt-iron (Co-Fe) decorated tellurium nanotubes (Te NTs) using semiconductive Te NTs as a sacrificial template using the wet chemical method. The Co and Fe precursor concentration incorporated into Te NT plays a significant role in obtaining various bimetallic telluride structures. The one-dimensional (1-D) structure of Co-Fe decorated Te NTs with Te NTs in the backbone provides superior conductivity and exhibits high electrochemical performance with battery type electrode behaviour. The Co-Fe decorated Te NTs electrode is combined with the electric double-layer capacitors (EDLC) type electrode activated carbon (AC) to tune the energy density performance. The asymmetric assembly shows an excellent specific capacitance of 179.2 F g-1 (48.7 mAh g-1) at a current density of 0.9 A g-1 in 4 M KOH electrolyte. More importantly, it exhibits a maximum energy density of 62.1 Wh Kg-1 at a power density of 1138.2 W Kg-1 under a potential window of 1.58 V. This potential finding shows the significant applicability of Te NTs as a template for the synthesis of bimetallic tellurides with unique morphologies. The synergistic effect from multimetals and anisotropic morphology is beneficial for energy storage applications.

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http://hdl.handle.net/10453/156163