Structural Manipulation of Layered TiS2 to TiS3 Nanobelts through Niobium Doping for High-Performance Supercapacitors

Ali Sajedi-Moghaddam; Carmen C. Mayorga-Martinez; Jayraj V. Vaghasiya; Osamah Alduhaish; Zdenek Sofer; Martin Pumera

doi:10.1002/celc.202000929

Structural Manipulation of Layered TiS₂ to TiS₃ Nanobelts through Niobium Doping for High-Performance Supercapacitors

Ali Sajedi-Moghaddam, Carmen C. Mayorga-Martinez, Jayraj V. Vaghasiya, Osamah Alduhaish, Zdenek Sofer, Martin Pumera

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Unraveling the influence of incorporating transition metal elements on layered transition metal chalcogenides for energy storage application remains a challenge. Herein, niobium (Nb)-doped layered titanium disulfide (TiS₂) is applied to generate novel compounds Ti_1−xNb_xS₂ (x=0.05, 0.1 and 0.20). Interestingly, TiS₃ nanobelts are formed in the resulting materials, which is proven by systematic morphological and structural characterization. It has been found that Nb-doped TiS₂ compounds demonstrate superior electrochemical capacitive activity, reaching up to a 63.2 % increase in gravimetric capacitance in 1 M Na₂SO₄ electrolyte compared with that of the Nb-free TiS₂. This remarkably enhanced capacity behavior is attributed to Nb doping resulting a structural transition of Layered TiS₂ to TiS₃ nanobelts.

Original language	English
Pages (from-to)	4985-4989
Number of pages	5
Journal	ChemElectroChem
Volume	7
Issue number	24
DOIs	https://doi.org/10.1002/celc.202000929
Publication status	Published - 2020 Dec 14

Bibliographical note

Funding Information:
This work was supported by the Distinguished Scientist Fellowship Program (DSFP) of King Saud University, Riyadh, Saudi Arabia.

Publisher Copyright:
© 2020 Wiley-VCH GmbH

All Science Journal Classification (ASJC) codes

Catalysis
Electrochemistry

Access to Document

10.1002/celc.202000929

Cite this

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title = "Structural Manipulation of Layered TiS2 to TiS3 Nanobelts through Niobium Doping for High-Performance Supercapacitors",

abstract = "Unraveling the influence of incorporating transition metal elements on layered transition metal chalcogenides for energy storage application remains a challenge. Herein, niobium (Nb)-doped layered titanium disulfide (TiS2) is applied to generate novel compounds Ti1−xNbxS2 (x=0.05, 0.1 and 0.20). Interestingly, TiS3 nanobelts are formed in the resulting materials, which is proven by systematic morphological and structural characterization. It has been found that Nb-doped TiS2 compounds demonstrate superior electrochemical capacitive activity, reaching up to a 63.2 % increase in gravimetric capacitance in 1 M Na2SO4 electrolyte compared with that of the Nb-free TiS2. This remarkably enhanced capacity behavior is attributed to Nb doping resulting a structural transition of Layered TiS2 to TiS3 nanobelts.",

author = "Ali Sajedi-Moghaddam and Mayorga-Martinez, {Carmen C.} and Vaghasiya, {Jayraj V.} and Osamah Alduhaish and Zdenek Sofer and Martin Pumera",

note = "Funding Information: This work was supported by the Distinguished Scientist Fellowship Program (DSFP) of King Saud University, Riyadh, Saudi Arabia. Publisher Copyright: {\textcopyright} 2020 Wiley-VCH GmbH",

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AU - Sajedi-Moghaddam, Ali

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AU - Vaghasiya, Jayraj V.

AU - Alduhaish, Osamah

AU - Sofer, Zdenek

AU - Pumera, Martin

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AB - Unraveling the influence of incorporating transition metal elements on layered transition metal chalcogenides for energy storage application remains a challenge. Herein, niobium (Nb)-doped layered titanium disulfide (TiS2) is applied to generate novel compounds Ti1−xNbxS2 (x=0.05, 0.1 and 0.20). Interestingly, TiS3 nanobelts are formed in the resulting materials, which is proven by systematic morphological and structural characterization. It has been found that Nb-doped TiS2 compounds demonstrate superior electrochemical capacitive activity, reaching up to a 63.2 % increase in gravimetric capacitance in 1 M Na2SO4 electrolyte compared with that of the Nb-free TiS2. This remarkably enhanced capacity behavior is attributed to Nb doping resulting a structural transition of Layered TiS2 to TiS3 nanobelts.

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