Improving photoelectrochemical performance of SnO2 nanocones through TiOx shell via atomic layer deposition
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0197814" target="_blank" >RIV/00216305:26620/26:0197814 - isvavai.cz</a>
Alternative codes found
RIV/00216275:25310/25:39923292
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0013468625002178?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0013468625002178?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.electacta.2025.145854" target="_blank" >10.1016/j.electacta.2025.145854</a>
Alternative languages
Result language
angličtina
Original language name
Improving photoelectrochemical performance of SnO2 nanocones through TiOx shell via atomic layer deposition
Original language description
Amorphous titanium oxide (TiOx) has recently garnered significant attention due to its disorder-mediated optical and electrical properties, in contrast to the crystalline TiO2 polymorphs. This research presents a novel approach for preparing SnO2/TiOx heterostructures. Ultrathin amorphous TiOx coatings of varying thicknesses, realized by Atomic Layer Deposition (ALD) on SnO2 nanocones, were used to investigate their impact on photo- electrochemical properties of resulting SnO2/TiOx heterostructures, as well as to enhance chemical and electrochemical stability of SnO2 itself. Uncoated SnO2 nanocones were utilized as reference materials for comparative assessment. SnO2 nanocones were prepared through a modified low-temperature Chemical Vapor Deposition (CVD) method, followed by an application of TiOx shell using an optimized ALD process. Morphological and chemical characterization of the SnO2/TiOx core-shell heterostructure was conducted using field emission electron microscopy (FE-SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS) and Raman spectroscopy. The light absorption ability was evaluated using UV-Vis spectroscopy, and the photoelectrochemical properties were assessed using monochromatic light and a solar light simulator. The impact of TiOx shell thickness on photoelectrochemical properties was meticulously assessed and correlated with changes in charge carrier kinetics, providing an understanding of how variations in TiOx shell dimensions affect photoelectrochemical properties in SnO2/TiOx photoanodes.
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
10400 - Chemical sciences
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ELECTROCHIMICA ACTA
ISSN
0013-4686
e-ISSN
1873-3859
Volume of the periodical
519
Issue of the periodical within the volume
145854
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
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UT code for WoS article
001433892400001
EID of the result in the Scopus database
2-s2.0-85217799926