Казанский (Приволжский) федеральный университет, КФУ
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GREEN REACTION ENGINEERING TOWARDS AN IRON-BASED NANOSTRUCTURED HYBRID AS AN ELECTROCATALYST FOR OXYGEN EVOLUTION REACTION
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2024
Языканглийский
  • Вагизов Фарит Габдулхакович, автор
  • Заиров Рустэм Равилевич, автор
  • Зиннатуллин Алмаз Линарович, автор
  • Библиографическое описание на языке оригинала Dymerska A.G, Wenelska K, Vagizov F, Green reaction engineering towards an iron-based nanostructured hybrid as an electrocatalyst for oxygen evolution reaction//Journal of Materials Chemistry A. - 2024. - Vol.12, Is.26. - p. 16007–16021
    Аннотация Developing robust electrocatalysts based on nonprecious metals with high activity in the sluggish oxygen-evolution reaction (OER) is crucial for achieving large-scale hydrogen production. We present a novel approach to design a molecular iron-based hybrid composed of Fe3O4, Fe, and FeNi3 with a sphere-like structure deposited on a flaky substrate. Our optimized catalyst, denoted as Fe/Ni_450C, demonstrates superior electroactivity with a low overpotential of 307 mV, and a minimal Tafel slope of 42 mV dec−1. The material demonstrates ultra-high durability in a 425 h stability test, retaining 86.80% of initial potential at 10 mA cm−2, and exhibits outstanding resistance to high currents (450 mA). The ex situ XRD, XPS, and Mössbauer spectroscopy analyses shed light on the underlying mechanism. Utilizing low-temperature operational conditions, environmentally friendly substrates, cost-effectiveness, high abundance, and impressive stability at high current density collectively position our findings as a pivotal step toward practical applications in the industry associated with electrochemical water decomposition.
    Ключевые слова oxygen evolution reaction, electrocatalyst, iron-based nanostructured hybrid
    Название журнала Journal of Materials Chemistry A
    URL https://www.scopus.com/inward/record.uri?eid=2-s2.0-85195067041&doi=10.1039%2fd4ta01193g&partnerID=40&md5=79df521d7a517d701ae1eeb3e8f6d87e
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