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

ABSTRACT: An extensive characterization of pristine and oxidized Ti3C2Tx (T: =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 approx. 10 s. The manuscript also shows electrochemical behavior of Ti3C2Tx modified electrode towards oxidation of NADH and towards oxygen reduction reactions.

SUBMITTER: Lorencova L

PROVIDER: S-EPMC5669457 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature

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

Lorencova Lenka L Bertok Tomas T Dosekova Erika E Holazova Alena A Paprckova Darina D Vikartovska Alica A Sasinkova Vlasta V Filip Jaroslav J Kasak Peter P Jerigova Monika M Velic Dusan D Mahmoud Khaled A KA Tkac Jan J

Electrochimica acta 20170501

An extensive characterization of pristine and oxidized Ti3C2Tx (T: =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 Ti3C<sub ...[more]

PMID: 29109588

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