2D Stacks of MXene Ti3C2 and 1T-Phase WS2 with Enhanced Capacitive Behavior

Jan Vyskočil, Carmen C. Mayorga-Martinez, Kateřina Szőkölová, Apurv Dash, Jesus Gonzalez-Julian, Zdeněk Sofer, Martin Pumera

Research output: Contribution to journalArticle

Abstract

MXene-based materials play an important role in the field of energy storage devices, owing to their layered structure with gravimetric/volumetric capacitances higher than that of graphene. However, owing to their tendency to bond to hydrogen or due to van der Walls forces, their performance is often reduced by the restacking of layers and subsequent reduction of their active surface area. In this work, we investigate the charge storage capacitance enhancement after inserting 1T-phase WS2 nanospacers into the matrix of MXene Ti3C2 through a simple sonication-assisted procedure, forming a 2D stack structure. We demonstrated that each exfoliation step enhances the capacitive behavior when compared to the starting MAX phase (Ti3AlC2). This new sandwich material shall have profound influence on the construction of 2D materials-based supercapacitors.

Original languageEnglish
Pages (from-to)3982-3986
Number of pages5
JournalChemElectroChem
Volume6
Issue number15
DOIs
Publication statusPublished - 2019 Jan 1

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Capacitance
Sonication
Graphite
Energy storage
Graphene
Hydrogen
Supercapacitor

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Electrochemistry

Cite this

Vyskočil, J., Mayorga-Martinez, C. C., Szőkölová, K., Dash, A., Gonzalez-Julian, J., Sofer, Z., & Pumera, M. (2019). 2D Stacks of MXene Ti3C2 and 1T-Phase WS2 with Enhanced Capacitive Behavior. ChemElectroChem, 6(15), 3982-3986. https://doi.org/10.1002/celc.201900643
Vyskočil, Jan ; Mayorga-Martinez, Carmen C. ; Szőkölová, Kateřina ; Dash, Apurv ; Gonzalez-Julian, Jesus ; Sofer, Zdeněk ; Pumera, Martin. / 2D Stacks of MXene Ti3C2 and 1T-Phase WS2 with Enhanced Capacitive Behavior. In: ChemElectroChem. 2019 ; Vol. 6, No. 15. pp. 3982-3986.
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Vyskočil, J, Mayorga-Martinez, CC, Szőkölová, K, Dash, A, Gonzalez-Julian, J, Sofer, Z & Pumera, M 2019, '2D Stacks of MXene Ti3C2 and 1T-Phase WS2 with Enhanced Capacitive Behavior', ChemElectroChem, vol. 6, no. 15, pp. 3982-3986. https://doi.org/10.1002/celc.201900643

2D Stacks of MXene Ti3C2 and 1T-Phase WS2 with Enhanced Capacitive Behavior. / Vyskočil, Jan; Mayorga-Martinez, Carmen C.; Szőkölová, Kateřina; Dash, Apurv; Gonzalez-Julian, Jesus; Sofer, Zdeněk; Pumera, Martin.

In: ChemElectroChem, Vol. 6, No. 15, 01.01.2019, p. 3982-3986.

Research output: Contribution to journalArticle

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Vyskočil J, Mayorga-Martinez CC, Szőkölová K, Dash A, Gonzalez-Julian J, Sofer Z et al. 2D Stacks of MXene Ti3C2 and 1T-Phase WS2 with Enhanced Capacitive Behavior. ChemElectroChem. 2019 Jan 1;6(15):3982-3986. https://doi.org/10.1002/celc.201900643