Photocatalytic activity of twist-angle stacked 2D TaS2

Abstract The low-cost, efficient photoelectrosensitive electrodes as an alternative to expensive and complex rigid systems are yet in demand for advanced photoresponsive technology. Here, the light-induced efficiency of electrochemically exfoliated TaS2 nanosheets for hydrogen generation catalysis a...

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Autores principales:	Evgeniya Kovalska, Pradip Kumar Roy, Nikolas Antonatos, Vlastimil Mazanek, Martin Vesely, Bing Wu, Zdenek Sofer
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/f2e9059a532d40c4a2cbee65b33e0ef6
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spelling	oai:doaj.org-article:f2e9059a532d40c4a2cbee65b33e0ef62021-12-02T16:18:03ZPhotocatalytic activity of twist-angle stacked 2D TaS210.1038/s41699-021-00247-82397-7132https://doaj.org/article/f2e9059a532d40c4a2cbee65b33e0ef62021-07-01T00:00:00Zhttps://doi.org/10.1038/s41699-021-00247-8https://doaj.org/toc/2397-7132Abstract The low-cost, efficient photoelectrosensitive electrodes as an alternative to expensive and complex rigid systems are yet in demand for advanced photoresponsive technology. Here, the light-induced efficiency of electrochemically exfoliated TaS2 nanosheets for hydrogen generation catalysis and photodetectors was demonstrated. Mutual twisting of the exfoliated 2H-TaS2 flakes leads to the redistribution of charge density induced by interlayer interaction of the individual nanosheets. External light irradiation on the TaS2 surface influences its conductivity making the material feasible for photoelectrocatalysis and photodetection. The TaS2-based photoelectrocatalyst demonstrates high hydrogen evolution reaction (HER) activity with the onset overpotential below 575 mV vs. reversible hydrogen electrode (RHE). The TaS2-integrated photodetector in the acidic medium represents its broadband response with the highest photoresponsivity (0.62 mA W−1) toward 420 nm light illumination. This finding will pave the way to a new realization of exfoliated twist-angle stacked TaS2 for photo-induced electrochemistry and sensing.Evgeniya KovalskaPradip Kumar RoyNikolas AntonatosVlastimil MazanekMartin VeselyBing WuZdenek SoferNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ChemistryQD1-999ENnpj 2D Materials and Applications, Vol 5, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999 Evgeniya Kovalska Pradip Kumar Roy Nikolas Antonatos Vlastimil Mazanek Martin Vesely Bing Wu Zdenek Sofer Photocatalytic activity of twist-angle stacked 2D TaS2
description	Abstract The low-cost, efficient photoelectrosensitive electrodes as an alternative to expensive and complex rigid systems are yet in demand for advanced photoresponsive technology. Here, the light-induced efficiency of electrochemically exfoliated TaS2 nanosheets for hydrogen generation catalysis and photodetectors was demonstrated. Mutual twisting of the exfoliated 2H-TaS2 flakes leads to the redistribution of charge density induced by interlayer interaction of the individual nanosheets. External light irradiation on the TaS2 surface influences its conductivity making the material feasible for photoelectrocatalysis and photodetection. The TaS2-based photoelectrocatalyst demonstrates high hydrogen evolution reaction (HER) activity with the onset overpotential below 575 mV vs. reversible hydrogen electrode (RHE). The TaS2-integrated photodetector in the acidic medium represents its broadband response with the highest photoresponsivity (0.62 mA W−1) toward 420 nm light illumination. This finding will pave the way to a new realization of exfoliated twist-angle stacked TaS2 for photo-induced electrochemistry and sensing.
format	article
author	Evgeniya Kovalska Pradip Kumar Roy Nikolas Antonatos Vlastimil Mazanek Martin Vesely Bing Wu Zdenek Sofer
author_facet	Evgeniya Kovalska Pradip Kumar Roy Nikolas Antonatos Vlastimil Mazanek Martin Vesely Bing Wu Zdenek Sofer
author_sort	Evgeniya Kovalska
title	Photocatalytic activity of twist-angle stacked 2D TaS2
title_short	Photocatalytic activity of twist-angle stacked 2D TaS2
title_full	Photocatalytic activity of twist-angle stacked 2D TaS2
title_fullStr	Photocatalytic activity of twist-angle stacked 2D TaS2
title_full_unstemmed	Photocatalytic activity of twist-angle stacked 2D TaS2
title_sort	photocatalytic activity of twist-angle stacked 2d tas2
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/f2e9059a532d40c4a2cbee65b33e0ef6
work_keys_str_mv	AT evgeniyakovalska photocatalyticactivityoftwistanglestacked2dtas2 AT pradipkumarroy photocatalyticactivityoftwistanglestacked2dtas2 AT nikolasantonatos photocatalyticactivityoftwistanglestacked2dtas2 AT vlastimilmazanek photocatalyticactivityoftwistanglestacked2dtas2 AT martinvesely photocatalyticactivityoftwistanglestacked2dtas2 AT bingwu photocatalyticactivityoftwistanglestacked2dtas2 AT zdeneksofer photocatalyticactivityoftwistanglestacked2dtas2
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Photocatalytic activity of twist-angle stacked 2D TaS2

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