prikaz prve stranice dokumenta Exploring the Effect of V2O5 and Nb2O5 Content on the Structural, Thermal, and Electrical Characteristics of Sodium Phosphate Glasses and Glass–Ceramics
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Scientific paper - Original scientific paper
Exploring the Effect of V2O5 and Nb2O5 Content on the Structural, Thermal, and Electrical Characteristics of Sodium Phosphate Glasses and Glass–Ceramics
International Journal of Molecular Sciences, 25 (2024), 5; 3005. https://doi.org/10.3390/ijms25053005
Marijan, Sara; Klaser, Teodoro; Mirosavljević, Marija; Mošner, Petr; Koudelka, Ladislav; Skoko, Željko; Pisk, Jana; Pavić, Luka

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Marijan, S., Klaser, T., Mirosavljević, M., Mošner, P., Koudelka, L., Skoko, Ž. ... Pavić, L. (2024). Exploring the Effect of V2O5 and Nb2O5 Content on the Structural, Thermal, and Electrical Characteristics of Sodium Phosphate Glasses and Glass–Ceramics. International Journal of Molecular Sciences, 25. (5). doi: 10.3390/ijms25053005

Marijan, Sara, et al. "Exploring the Effect of V2O5 and Nb2O5 Content on the Structural, Thermal, and Electrical Characteristics of Sodium Phosphate Glasses and Glass–Ceramics." International Journal of Molecular Sciences, vol. 25, no. 5, 2024. https://doi.org/10.3390/ijms25053005

Marijan, Sara, Teodoro Klaser, Marija Mirosavljević, Petr Mošner, Ladislav Koudelka, Željko Skoko, Jana Pisk and Luka Pavić. "Exploring the Effect of V2O5 and Nb2O5 Content on the Structural, Thermal, and Electrical Characteristics of Sodium Phosphate Glasses and Glass–Ceramics." International Journal of Molecular Sciences 25, no. 5 (2024). https://doi.org/10.3390/ijms25053005

Marijan, S., et al. (2024) 'Exploring the Effect of V2O5 and Nb2O5 Content on the Structural, Thermal, and Electrical Characteristics of Sodium Phosphate Glasses and Glass–Ceramics', International Journal of Molecular Sciences, 25(5). doi: 10.3390/ijms25053005

Marijan S, Klaser T, Mirosavljević M, Mošner P, Koudelka L, Skoko Ž, and sur.. Exploring the Effect of V2O5 and Nb2O5 Content on the Structural, Thermal, and Electrical Characteristics of Sodium Phosphate Glasses and Glass–Ceramics. International Journal of Molecular Sciences [Internet]. 2024 March 05 [cited 2024 October 07];25(5). doi: 10.3390/ijms25053005

S. Marijan, et al., "Exploring the Effect of V2O5 and Nb2O5 Content on the Structural, Thermal, and Electrical Characteristics of Sodium Phosphate Glasses and Glass–Ceramics", International Journal of Molecular Sciences, vol. 25, no. 5, March 2024. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:370725. [Accessed: 07 October 2024]

Metadata
Title (english)Exploring the Effect of V2O5 and Nb2O5 Content on the Structural, Thermal, and Electrical Characteristics of Sodium Phosphate Glasses and Glass–Ceramics
AuthorSara Marijan
AuthorTeodoro Klaser
AuthorMarija Mirosavljević
AuthorPetr Mošner
AuthorLadislav Koudelka
AuthorŽeljko Skoko
AuthorJana Pisk
AuthorLuka Pavić
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
Na-V-P-Nb-based materials have gained substantial recognition as cathode materials in high-rate sodium-ion batteries due to their unique properties and compositions, comprising both alkali and transition metal ions, which allow them to exhibit a mixed ionic–polaronic conduction mechanism. In this study, the impact of introducing two transition metal oxides, V2O5 and Nb2O5, on the thermal, (micro)structural, and electrical properties of the 35Na2O-25V2O5-(40 − x)P2O5 − xNb2O5 system is examined. The starting glass shows the highest values of DC conductivity, σDC, reaching 1.45 × 10−8 Ω−1 cm−1 at 303 K, along with a glass transition temperature, Tg, of 371 °C. The incorporation of Nb2O5 influences both σDC and Tg, resulting in non-linear trends, with the lowest values observed for the glass with x = 20 mol%. Electron paramagnetic resonance measurements and vibrational spectroscopy results suggest that the observed non-monotonic trend in σDC arises from a diminishing contribution of polaronic conductivity due to the decrease in the relative number of V4+ ions and the introduction of Nb2O5, which disrupts the predominantly mixed vanadate–phosphate network within the starting glasses, consequently impeding polaronic transport. The mechanism of electrical transport is investigated using the model-free Summerfield scaling procedure, revealing the presence of mixed ionic–polaronic conductivity in glasses where x < 10 mol%, whereas for x ≥ 10 mol%, the ionic conductivity mechanism becomes prominent. To assess the impact of the V2O5 content on the electrical transport mechanism, a comparative analysis of two analogue series with varying V2O5 content (10 and 25 mol%) is conducted to evaluate the extent of its polaronic contribution.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleInternational Journal of Molecular Sciences
Numberingvol. 25, no. 5, 3005
e-ISSN1422-0067
DOIhttps://doi.org/10.3390/ijms25053005
URN:NBNurn:nbn:hr:217:370725
Publication2024-03-05
ProjectNumber: IP-2018-01-5425
Title (croatian): Detaljan uvid u mehanizme polaronske i ionske vodljivosti u oksidnoj staklo-(keramici)
Acronym: POLAR-ION-GLASS
Leader: Ana Šantić
Jurisdiction: Croatia
Funding stream: Research Projects
Document URLhttps://www.mdpi.com/1422-0067/25/5/3005
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Received: 16 February 2024. Revised: 28 February 2024. Accepted: 1 March 2024. Published: 5 March 2024.
Created on2024-07-24 10:31:33