High-Throughput Electrochemical Strategy for Synthesis of Iron-Based Nanostructures for Electrocatalytic Water Splitting | Sciact - CRIS-система Института катализа

High-Throughput Electrochemical Strategy for Synthesis of Iron-Based Nanostructures for Electrocatalytic Water Splitting Научная публикация

Журнал

Journal of Materials Science
ISSN: 0022-2461 , E-ISSN: 1573-4803

Вых. Данные

Год: 2024, Том: 59, Номер: 4, Страницы: 1265–1279 Страниц : 15 DOI: 10.1007/s10853-023-09290-w

Ключевые слова

Annealing; Electrocatalysts; Electrolytes; Electrooxidation; Free energy; Hematite; Hydrogen production; Iron; Oxygen; Sodium chloride; Sodium hydroxide

Авторы

Molodtsova Tatyana ¹ , Ulyankina Anna ¹ , Gorshenkov Mikhail ² , Kubrin Stanislav ³ , Kaichev Vasily ⁴ , Smirnova Nina ¹

Организации

1	Platov South-Russian State Polytechnic University (NPI), Novocherkassk, Russia, 346428
2	National University of Science and Technology (MISIS), Moscow, Russia, 119049
3	Southern Federal University, Rostov-on-Don, Russia, 344006
4	Boreskov Institute of Catalysis, Novosibirsk, Russia, 630090

Информация о финансировании (2)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	075-03-2021-016/4 (121111000053-9) (FENN-2021-0008)
2	Российский научный фонд	23-79-10219

Electrochemical water splitting has drawn significant attention for hydrogen generation as a carbon-free energy carrier for the construction of a net-zero society. To scale up water electrolyzers, enormous efforts have been made to the development of high-throughput synthesis of the electrocatalysts based on abundance and non-toxic elements for both oxygen and hydrogen evolution reactions. In this work, Fe-based nanostructures with a high Fe electrooxidation rate (up to 1 g cm−2 h−1) were prepared through a controlled and feasible electrosynthesis using pulse alternating current. The effect of electrolyte solution and post-annealing on composition/structural characteristics and electrochemical activity of the Fe-based nanostructures was depicted. The bi-phase sheet-like γ-Fe2O3/δ-FeOOH and cube-like γ-Fe2O3/α-FeOOH structures are formed in aqueous NaOH and NaCl solutions, respectively. The electrocatalytic activity of the synthesized structures was tailored by annealing up to 500 °C in air. The α-Fe2O3 catalyst synthesized in NaOH and NaCl demonstrated the overpotentials of 441 and 390 mV at 10 mA cm−2 in hydrogen and oxygen evolution reactions, respectively. This work provides new and deep insights into the high-throughput electrosynthesis of low-cost catalysts for hydrogen and oxygen production from water splitting. Therefore, this work focuses on the rational design and research of Fe-based catalysts for electrochemical water splitting.

Molodtsova T. , Ulyankina A. , Gorshenkov M. , Kubrin S. , Kaichev V. , Smirnova N.
High-Throughput Electrochemical Strategy for Synthesis of Iron-Based Nanostructures for Electrocatalytic Water Splitting
Journal of Materials Science. 2024. V.59. N4. P.1265–1279. DOI: 10.1007/s10853-023-09290-w Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	3 окт. 2023 г.
Принята к публикации:	16 дек. 2023 г.
Опубликована в печати:	18 янв. 2024 г.
Опубликована online:	18 янв. 2024 г.

Scopus:	2-s2.0-85182428628
РИНЦ:	65909284
Chemical Abstracts:	2024:182916
Chemical Abstracts (print):	186:118565
OpenAlex:	W4390966433

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