ACTIVATION OF TAS2 LOADED IN BLACK TITANIA NANOTUBE ARRAYS - HIGH PERFORMANCE PHOTOELECTROCHEMICAL CATHODE FOR HYDROGEN PRODUCTION
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929306" target="_blank" >RIV/60461373:22310/24:43929306 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.37904/nanocon.2023.4786" target="_blank" >https://doi.org/10.37904/nanocon.2023.4786</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/nanocon.2023.4786" target="_blank" >10.37904/nanocon.2023.4786</a>
Alternative languages
Result language
angličtina
Original language name
ACTIVATION OF TAS2 LOADED IN BLACK TITANIA NANOTUBE ARRAYS - HIGH PERFORMANCE PHOTOELECTROCHEMICAL CATHODE FOR HYDROGEN PRODUCTION
Original language description
The shift towards sustainable energy sources has generated a growing need for materials that can effectively produce and conserve alternative fuels. While platinum is known for its outstanding catalytic properties in hydrogen evolution, its scarcity presents a significant challenge. This work focuses on developing an electrode for the photoelectrochemical production of hydrogen without Pt utilization, a potential future fuel source. In particular, we introduced a novel electrode preparation method that utilizes more abundant materials, including titanium (Ti), tantalum pentoxide (Ta2O5), and gold (Au). The proposed approach begins with titanium anodization to create a TiO2 nanotube array, followed by partial reduction to create a black titania structure, resulting in a high surface area with excellent light absorption. A nanostructured gold was deposited on the top of black titania and enhances light absorption, enabling the efficient use of hot electrons excited due to surface plasmon resonance. Simultaneously, controlled sulfurization of Ta2O5 yields TaS2 with a preferential structural modification (3R) which is later deposited on black titania/Au surface and enhances the catalytic activity of such samples. The synergistic combination of used materials, deliberate introduction of structural defects, and spatial compatibility leads to an electrode that surpasses platinum's overpotential for hydrogen evolution at high current densities. Moreover, under illumination, the prepared electrode outperforms platinum even at low current densities as low as 10 mA cm-2. This innovative approach holds promise for advancing sustainable hydrogen production and contributes to the ongoing efforts to develop alternative energy sources. © 2024 NANOCON Conference Proceedings - International Conference on Nanomaterials. All rights reserved.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
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OECD FORD branch
20501 - Materials engineering
Result continuities
Project
<a href="/en/project/GA23-05197S" target="_blank" >GA23-05197S: Two-dimensional transition-metal dichalcogenides – new concept of synthesis and activation for functionality enhancement</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
NANOCON Conference Proceedings
ISBN
978-80-88365-15-0
ISSN
2694-930X
e-ISSN
—
Number of pages
6
Pages from-to
142-147
Publisher name
Tanger s.r.o.
Place of publication
Ostrava
Event location
Brno
Event date
Oct 18, 2023
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
001234125400023