Probing the Mechanism of High Capacitance in 2D Titanium Carbide Using in Situ X-Ray Absorption Spectroscopy

Maria R. Lukatskaya; Seong Min Bak; Xiqian Yu; Xiao Qing Yang; Michel W. Barsoum; Yury Gogotsi

doi:10.1002/aenm.201500589

Probing the Mechanism of High Capacitance in 2D Titanium Carbide Using in Situ X-Ray Absorption Spectroscopy

Maria R. Lukatskaya, Seong Min Bak, Xiqian Yu, Xiao Qing Yang, Michel W. Barsoum, Yury Gogotsi

Department of Materials Science and Engineering

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

477 Citations (Scopus)

Abstract

Electrochemical in situ X-ray absorption spectroscopy (XAS) of 2D titanium carbide MXene is used to probe the mechanism of high capacitance of Ti₃C₂T_x MXene. Changes in the Ti oxidation state are detected during cycling, confirming that most of the capacitance of Ti₃C₂T_x is due to changes in the Ti oxidation state, i.e., pseudocapacitance.

Original language	English
Article number	1500589
Journal	Advanced Energy Materials
Volume	5
Issue number	15
DOIs	https://doi.org/10.1002/aenm.201500589
Publication status	Published - 2015 Aug 1

Bibliographical note

Publisher Copyright:
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Materials Science(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/aenm.201500589

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abstract = "Electrochemical in situ X-ray absorption spectroscopy (XAS) of 2D titanium carbide MXene is used to probe the mechanism of high capacitance of Ti3C2Tx MXene. Changes in the Ti oxidation state are detected during cycling, confirming that most of the capacitance of Ti3C2Tx is due to changes in the Ti oxidation state, i.e., pseudocapacitance.",

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AU - Yu, Xiqian

AU - Yang, Xiao Qing

AU - Barsoum, Michel W.

AU - Gogotsi, Yury

PY - 2015/8/1

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AB - Electrochemical in situ X-ray absorption spectroscopy (XAS) of 2D titanium carbide MXene is used to probe the mechanism of high capacitance of Ti3C2Tx MXene. Changes in the Ti oxidation state are detected during cycling, confirming that most of the capacitance of Ti3C2Tx is due to changes in the Ti oxidation state, i.e., pseudocapacitance.

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Probing the Mechanism of High Capacitance in 2D Titanium Carbide Using in Situ X-Ray Absorption Spectroscopy

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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