Electrochemical performance of Ti3C2Tx MXene in aqueous media: towards ultrasensitive H2O2 sensing

Lenka Lorencova, Tomas Bertok, Erika Dosekova, Alena Holazova, Darina Paprckova, Alica Vikartovska, Vlasta Sasinkova, Jaroslav Filip, Peter Kasak, Monika Jerigova, Dusan Velic, Khaled Mahmoud, Jan Tkac

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

An extensive characterization of pristine and oxidized Ti3C2Tx (T: [dbnd]O, –OH, –F) MXene showed that exposure of MXene to an anodic potential in the aqueous solution oxidizes the nanomaterial forming TiO2 layer or TiO2 domains with subsequent TiO2 dissolution by F ions, making the resulting nanomaterial less electrochemically active compared to the pristine Ti3C2Tx. The Ti3C2Tx could be thus applied for electrochemical reactions in a cathodic potential window i.e. for ultrasensitive detection of H2O2 down to nM level with a response time of ∼10 s. The manuscript also shows electrochemical behavior of Ti3C2Tx modified electrode towards oxidation of NADH and towards oxygen reduction reactions.

Original languageEnglish
Pages (from-to)471-479
Number of pages9
JournalElectrochimica Acta
Volume235
DOIs
Publication statusPublished - 1 May 2017

Fingerprint

Nanostructured materials
NAD
Dissolution
Ions
Oxygen
Oxidation
Electrodes

Keywords

  • HO sensing
  • NADH oxidation
  • oxygen reduction reactions
  • TiCT

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Electrochemistry

Cite this

Lorencova, L., Bertok, T., Dosekova, E., Holazova, A., Paprckova, D., Vikartovska, A., ... Tkac, J. (2017). Electrochemical performance of Ti3C2Tx MXene in aqueous media: towards ultrasensitive H2O2 sensing. Electrochimica Acta, 235, 471-479. https://doi.org/10.1016/j.electacta.2017.03.073

Electrochemical performance of Ti3C2Tx MXene in aqueous media : towards ultrasensitive H2O2 sensing. / Lorencova, Lenka; Bertok, Tomas; Dosekova, Erika; Holazova, Alena; Paprckova, Darina; Vikartovska, Alica; Sasinkova, Vlasta; Filip, Jaroslav; Kasak, Peter; Jerigova, Monika; Velic, Dusan; Mahmoud, Khaled; Tkac, Jan.

In: Electrochimica Acta, Vol. 235, 01.05.2017, p. 471-479.

Research output: Contribution to journalArticle

Lorencova, L, Bertok, T, Dosekova, E, Holazova, A, Paprckova, D, Vikartovska, A, Sasinkova, V, Filip, J, Kasak, P, Jerigova, M, Velic, D, Mahmoud, K & Tkac, J 2017, 'Electrochemical performance of Ti3C2Tx MXene in aqueous media: towards ultrasensitive H2O2 sensing', Electrochimica Acta, vol. 235, pp. 471-479. https://doi.org/10.1016/j.electacta.2017.03.073
Lorencova, Lenka ; Bertok, Tomas ; Dosekova, Erika ; Holazova, Alena ; Paprckova, Darina ; Vikartovska, Alica ; Sasinkova, Vlasta ; Filip, Jaroslav ; Kasak, Peter ; Jerigova, Monika ; Velic, Dusan ; Mahmoud, Khaled ; Tkac, Jan. / Electrochemical performance of Ti3C2Tx MXene in aqueous media : towards ultrasensitive H2O2 sensing. In: Electrochimica Acta. 2017 ; Vol. 235. pp. 471-479.
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AU - Holazova, Alena

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