Magnetite-Free Sn-Doped Hematite Nanoflake Layers for Enhanced Photoelectrochemical Water Splitting
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F22%3A10249988" target="_blank" >RIV/61989100:27640/22:10249988 - isvavai.cz</a>
Alternative codes found
RIV/61989592:15640/22:73618691
Result on the web
<a href="https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202200066" target="_blank" >https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/celc.202200066</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/celc.202200066" target="_blank" >10.1002/celc.202200066</a>
Alternative languages
Result language
angličtina
Original language name
Magnetite-Free Sn-Doped Hematite Nanoflake Layers for Enhanced Photoelectrochemical Water Splitting
Original language description
In the present work, we report a preparation strategy for hematite phase-pure photoanodes consisting of Sn-doped hematite nanoflakes/hematite thin film bilayer nanostructure (Sn-HB). This approach is based on a two-step annealing process of pure iron films deposited on fluorine doped tin oxide (FTO) substrates by advanced magnetron sputtering. While the high density hematite ultrathin nanoflakes (HNs) with detrimental iron oxide layers (Fe3O4 and/or FeO) are generated during the first annealing step at 400 degrees C for two hours, the second thermal treatment at 800 degrees C for 15 minutes oxidises all the undesired iron oxide phases to a photoactive hematite layer as well as is providing efficient Sn doping of a drop-casted SnCl4 in order to increase the conductivity. The optimized Sn-HB shows an around 11 times higher photocurrent density (0.71 mA cm(-2) at 1.23 V-RHE) compared with a reference hematite photoanode produced from iron foil under the same conditions.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ChemElectroChem
ISSN
2196-0216
e-ISSN
2196-0216
Volume of the periodical
9
Issue of the periodical within the volume
11
Country of publishing house
DE - GERMANY
Number of pages
7
Pages from-to
nestrankovano
UT code for WoS article
000804081200001
EID of the result in the Scopus database
2-s2.0-85132340700