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Highly stable Ti3C2Tx (MXene)/Pt nanoparticles-modified glassy carbon electrode for H2O2 and small molecules sensing applications

Lorencova, Lenka, Bertok, Tomas, Filip, Jaroslav, Jerigova, Monika, Velic, Dusan, Kasak, Peter, Mahmoud, Khaled A., Tkac, Jan·2018·Sensors and Actuators B: Chemical

Abstract

Abstract Electrochemical performance of a 2D Ti3C2Tx (MXene, where T: O, OH, F) sheets modified with Pt nanoparticles (PtNPs) was investigated. The results showed that Ti3C2Tx/PtNP nanocomposite deposited on the surface of GCE showed much better and stable redox behavior in an anodic potential window as compared to the GCE modified with pristine Ti3C2Tx MXene. For example, the H2O2 sensor of Ti3C2Tx/PtNP on GCE offered LOD of 448 nM with a potential at which reduction starts of ∼+250 mV (vs. Ag/AgCl) in comparison to values of 883 μM and ∼−160 mV observed for Ti3C2Tx modified GCE. Moreover, the Ti3C2Tx/PtNP sensor could detect small redox molecules such as ascorbic acid (AA), dopamine (DA), uric acid (UA) and acetaminophen (APAP) at a potential higher than +250 mV with high selectivity and LOD down to nM level. We proved that selectivity of detection of such molecules (AA, DA, UA and APAP) could be modulated to high extent using external membranes.

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Metadata

Authors
Lorencova, L., Bertok, T., Filip, J., Jerigova, M., Velic, D., Kasak, P., Mahmoud, K. A., & Tkac, J.
Venue
Sensors and Actuators B: Chemical
Publisher
Elsevier BV
Published
2018-06
Volume
263
Pages
360-368
ISSN
0925-4005 (ISSN-L)
OpenAlex
W2790648701
Cited by
282
References
24
FWCI
9.13
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Highly stable Ti3C2Tx (MXene)/Pt nanoparticles-modified glassy carbon electrode for H2O2 and small molecules sensing applications. https://app.cochat.ai/papers/10.1016/j.snb.2018.02.124
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Lorencova, L., Bertok, T., Filip, J., Jerigova, M., Velic, D., Kasak, P., Mahmoud, K. A., & Tkac, J. (2018). Highly stable Ti3C2Tx (MXene)/Pt nanoparticles-modified glassy carbon electrode for H2O2 and small molecules sensing applications. Sensors and Actuators B: Chemical. https://doi.org/10.1016/j.snb.2018.02.124

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