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Title:Structural Insights and hydrogen retention in amorphous and crystalline tungsten oxide films
Authors:ID Zavašnik, Janez, Institut "Jožef Stefan" (Author)
ID Shvalya, Vasyl, Institut "Jožef Stefan" (Author)
ID Kremer, Kristof (Author)
ID Schwarz-Selinger, Thomas (Author)
ID Jacob, Wolfgang (Author)
Files:.pdf PDF - Presentation file, download (12,30 MB)
MD5: 40F53427FA63612FF3FA6DA73BF1880C
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo IJS - Jožef Stefan Institute
Abstract:We investigated structural characteristics of and hydrogen isotope interactions with thermally and electro chemically synthesized tungsten oxide (W-oxide) thin films (≤50 nm). Specifically, we assessed whether elec trochemically synthesized W-oxide could serve as a suitable proxy for thermally grown films in hydrogen interaction studies. The W-oxide thin films were exposed to low-energetic atomic deuterium (D) to explore the hydrogen uptake, retention, and intercalation effects of the W-oxide structure. The W-oxides were characterized using grazing incidence X-ray diffraction (GI-XRD), scanning and transmission electron microscopy (SEM, TEM), Raman spectroscopy, and Fourier-transform infrared spectroscopy (FTIR) before and after deuterium exposure. The thermally grown W-oxides are crystalline, composed of orthorhombic WO3, while the electrochemically grown W-oxides are amorphous with nanocrystalline domains. Deuterium retention studies revealed that the electrochemically grown W-oxides show higher initial D retention compared with their thermally grown coun terparts and lower D release over time during storage, suggesting stronger D binding within the amorphous matrix. Using ion beam analysis, we quantified the deuterium retention and examined the depth-resolved reduction of the oxide within the films following deuterium exposure
Publication status:Published
Publication version:Version of Record
Submitted for review:12.12.2024
Article acceptance date:15.02.2025
Publication date:19.02.2025
Publisher:Elsevier
Year of publishing:2025
Number of pages:10 str.
Numbering:Vol. 692, Art. 162712
Source:Nizozemska
PID:20.500.12556/DiRROS-21578 New window
UDC:539
ISSN on article:0169-4332
DOI:10.1016/j.apsusc.2025.162712 New window
COBISS.SI-ID:226971395 New window
Copyright:© 2025 The Author(s)
Publication date in DiRROS:28.02.2025
Views:153
Downloads:43
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ZAVAŠNIK, Janez, SHVALYA, Vasyl, KREMER, Kristof, SCHWARZ-SELINGER, Thomas and JACOB, Wolfgang, 2025, Structural Insights and hydrogen retention in amorphous and crystalline tungsten oxide films. Applied Surface Science [online]. 2025. Vol. 692, no. 162712. [Accessed 21 April 2025]. DOI 10.1016/j.apsusc.2025.162712. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=21578
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Record is a part of a journal

Title:Applied Surface Science
Shortened title:Appl. surf. sci.
Publisher:North-Holland
ISSN:0169-4332
COBISS.SI-ID:3283215 New window

Document is financed by a project

Funder:EC - European Commission
Funding programme:HE
Project number:101052200
Name:Implementation of activities described in the Roadmap to Fusion during Horizon Europe through a joint programme of the members of the EUROfusion consortium
Acronym:EUROfusion
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0417
Name:Plazma in kvantne strukture
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:J2-4440
Name:Načrtovanje in razvoj DT-procesiranih Fe-Al zlitin s samotvornimi preprekami za prepustnost vodika za najzahtevnejša okolja
Funder:EC - European Commission
Funding programme:HE
Project number:101046835
Name:A paradigm shift for the future's thermal management devices through radical innovation in new materials and additive manufacturing
Acronym:ThermoDust

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:19.02.2025
Applies to:VoR

Secondary language

Language:Slovenian
Keywords:tungsten, vodikovi izotopi, strukture kristalov


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