Electrochemical performance of Ti3C2Tx MXene in aqueous media: towards ultrasensitive H2O2 sensing
| Autor: | Alica Vikartovská, Vlasta Sasinková, Darina Paprckova, Dusan Velic, Peter Kasak, Khaled A. Mahmoud, Lenka Lorencova, Alena Holazova, Tomas Bertok, Jaroslav Filip, Erika Dosekova, Jan Tkac, Monika Jerigova |
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| Rok vydání: | 2017 |
| Předmět: |
NADH oxidation
Aqueous solution Chemistry General Chemical Engineering Inorganic chemistry H2O2 sensing 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Anode Nanomaterials Ion Ti3C2Tx Electrode oxygen reduction reactions 0210 nano-technology Layer (electronics) Dissolution |
| Zdroj: | Electrochimica Acta. 235:471-479 |
| ISSN: | 0013-4686 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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