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

Lorencová, Lenka; Bertók, Tomáš; Došeková, Erika; Holazová, Alena; Paprčková, Darina; Vikartovská, Alica; Sasinková, Vlasta; Filip, Jaroslav; Kasák, Peter; Jerigová, Monika; Velič, Dušan; Mahmoud, Khaled A.; Tkáč, Ján

dc.title	Electrochemical performance of Ti3C2Tx MXene in aqueous media: towards ultrasensitive H2O2 sensing	en
dc.contributor.author	Lorencová, Lenka
dc.contributor.author	Bertók, Tomáš
dc.contributor.author	Došeková, Erika
dc.contributor.author	Holazová, Alena
dc.contributor.author	Paprčková, Darina
dc.contributor.author	Vikartovská, Alica
dc.contributor.author	Sasinková, Vlasta
dc.contributor.author	Filip, Jaroslav
dc.contributor.author	Kasák, Peter
dc.contributor.author	Jerigová, Monika
dc.contributor.author	Velič, Dušan
dc.contributor.author	Mahmoud, Khaled A.
dc.contributor.author	Tkáč, Ján
dc.relation.ispartof	Electrochimica Acta
dc.identifier.issn	0013-4686 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued	2017
utb.relation.volume	235
dc.citation.spage	471
dc.citation.epage	479
dc.type	article
dc.language.iso	en
dc.publisher	Elsevier
dc.identifier.doi	10.1016/j.electacta.2017.03.073
dc.relation.uri	https://www.sciencedirect.com/science/article/pii/S001346861730539X
dc.subject	H2O2 sensing	en
dc.subject	NADH oxidation	en
dc.subject	oxygen reduction reactions	en
dc.subject	Ti3C2Tx	en
dc.description.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. © 2017 Elsevier Ltd	en
utb.faculty	Faculty of Technology
dc.identifier.uri	http://hdl.handle.net/10563/1007089
utb.identifier.obdid	43877037
utb.identifier.scopus	2-s2.0-85016044656
utb.identifier.wok	000398330200055
utb.identifier.coden	ELCAA
utb.source	j-scopus
dc.date.accessioned	2017-07-25T08:54:56Z
dc.date.available	2017-07-25T08:54:56Z
dc.description.sponsorship	311532, APVV, Agentúra na Podporu Výskumu a Vývoja; ERDF, European Regional Development Fund; QNRF, Qatar National Research Fund
dc.description.sponsorship	Slovak Scientific Grant Agency VEGA [2/0090/16]; Slovak Research and Development Agency APVV [14-0753]; European Research Council under the European Union's Seventh Framework Program [311532]; NPRP from the Qatar National Research Fund (a member of the Qatar Foundation) [6381-1-078]; Research & Development Operational Programme – ERDF
utb.contributor.internalauthor	Filip, Jaroslav
utb.fulltext.affiliation	Lenka Lorencova a,1 , Tomas Bertok a,1 , Erika Dosekova a , Alena Holazova a , Darina Paprckova a , Alica Vikartovska a , Vlasta Sasinkova a , Jaroslav Filip b,2 , Peter Kasak b, * , Monika Jerigova c,d , Dusan Velic c,d , Khaled A. Mahmoud e , Jan Tkac a, * a Institute of Chemistry, Slovak Academy of Sciences, Dubravska cesta 9, Bratislava 845 38, Slovak Republic b Center for Advanced Materials, Qatar University, P.O. Box 2713, Doha, Qatar c Department of Physical Chemistry, Faculty of Natural Sciences, Comenius University, Mlynska Dolina, Bratislava, 84215, Slovak Republic d International Laser Centre, Ilkovi9 cova 3, Bratislava 84104, Slovak Republic e Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), P.O. Box 5825, Doha, Qatar * Corresponding authors. E-mail addresses: peter.kasak@qu.edu.qa (P. Kasak), Jan.Tkac@savba.sk (J. Tkac). 1 These authors contributed equally. 2 Current address: Department of Environment Protection Engineering, Tomas Bata University in Zlin, Vavreckova 275, Zlin 762 72, Czech Republic
utb.fulltext.dates	Received 21 January 2017 Received in revised form 8 March 2017 Accepted 9 March 2017 Available online 11 March 2017
utb.fulltext.sponsorship	Ginancial support received from the Slovak Scientific Grant Agency VEGA 2/0090/16 and from the Slovak Research and Development Agency APVV 14-0753 is acknowledged. The research leading to these results received funding from the European Research Council under the European Union’s Seventh Framework Program (FP/2007-2013)/ERC Grant Agreement no. 311532. This publication was made possible by NPRP grant no. 6- 381-1-078 from the Qatar National Research Fund (a member of the Qatar Foundation). This publication is the result of the project implementation: Applied research in the field of industrial biocatalysis, ITMS code: 26240220079 supported by the Research & Development Operational Programme funded by the ERDF. Authors would like to thank prof. Yury Gogotsi for proving the sample of Ti 3 C 2 T x MXene and for his valuable comments regarding the manuscript.