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Ru‐Doped Fe2TiO5 as a High‐Performance Electrocatalyst for Urea‐Assisted Water Splitting
Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, Venezia Mestre 30170, Italy.
GanJiang Innovation Academy, Chinese Academy of Science, Ganzhou 341000, P. R. China.
Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, Venezia Mestre 30170, Italy.
Department of Molecular Sciences and Nanosystems, Ca’ Foscari University of Venice, Via Torino 155, Venezia Mestre 30170, Italy.
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2025 (English)In: Small, ISSN 1613-6810, E-ISSN 1613-6829, Vol. 21, no 41, article id 2412370Article in journal (Refereed) Published
Abstract [en]

The urea oxidation reaction (UOR), with its low thermodynamic potential, offers a promising alternative to the oxygen evolution reaction (OER) for efficient hydrogen production. However, its sluggish kinetics still demand the development of an efficient electrocatalyst. In this study, the critical role of Ru doping in Fe₂TiO₅ is demonstrated to accelerate UOR kinetics. The computational finding confirmed the feasibility of this approach, guiding the experimental synthesis of Fe2−xRuxTiO5. Benefitting from surface properties and electronic structure, the synthesized material exhibits superior performance with a potential of 1.30 V at a current density of 10 mA cm−2 for UOR, compared to undoped Fe2TiO5 (1.40 V). Moreover, it demonstrates a favourable Tafel slope of 52 mV dec−1 and maintains robust durability for 72 h. As confirmed from experimental and computational findings, the enhanced activity can be attributed to the Ru doping resulting in structural distortion at the Fe site and creation of a favourable adsorption site thereby enhancing UOR via dual active center. This study not only broadens the potential applications of Fe2TiO5-based materials beyond their traditional role as photocatalysts but also establishes them as promising electrocatalysts underscoring the versatility and improved performance of Fe2−xRuxTiO5.

Place, publisher, year, edition, pages
John Wiley & Sons, 2025. Vol. 21, no 41, article id 2412370
Keywords [en]
Fe2-xRuxTiO5, Oxygen Evolution reaction, pseudobrookite, urea-assisted water oxidation, Uria Oxidation reaction
National Category
Materials Chemistry
Research subject
Experimental Physics
Identifiers
URN: urn:nbn:se:ltu:diva-112012DOI: 10.1002/smll.202412370ISI: 001440054200001PubMedID: 40059529Scopus ID: 2-s2.0-105000207631OAI: oai:DiVA.org:ltu-112012DiVA, id: diva2:1944797
Funder
The Kempe FoundationsKnut and Alice Wallenberg Foundation, KAW 2016.346ÅForsk (Ångpanneföreningen's Foundation for Research and Development)
Note

Validerad;2025;Nivå 2;2025-11-06 (u8);

Funder: European Union, NextGenerationEU (iNEST ECS_00000043 – CUP H43C22000540006); European Union, NextGenerationEU, NEST (PE0000021 – CUP D43C22003090001);

Full text license: CC BY 4.0

Available from: 2025-03-17 Created: 2025-03-17 Last updated: 2025-11-06Bibliographically approved

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Vomiero, Alberto

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