High-Throughput Electrochemical Strategy for Synthesis of Iron-Based Nanostructures for Electrocatalytic Water Splitting Full article
| Journal |
Journal of Materials Science
ISSN: 0022-2461 , E-ISSN: 1573-4803 |
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| Output data | Year: 2024, Volume: 59, Number: 4, Pages: 1265–1279 Pages count : 15 DOI: 10.1007/s10853-023-09290-w | ||||||||
| Tags | Annealing; Electrocatalysts; Electrolytes; Electrooxidation; Free energy; Hematite; Hydrogen production; Iron; Oxygen; Sodium chloride; Sodium hydroxide | ||||||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | 075-03-2021-016/4 (121111000053-9) (FENN-2021-0008) |
| 2 | Russian Science Foundation | 23-79-10219 |
Abstract:
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.
Cite:
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 ANCAN OpenAlex
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 ANCAN OpenAlex
Dates:
| Submitted: | Oct 3, 2023 |
| Accepted: | Dec 16, 2023 |
| Published print: | Jan 18, 2024 |
| Published online: | Jan 18, 2024 |
Identifiers:
| Scopus: | 2-s2.0-85182428628 |
| Elibrary: | 65909284 |
| Chemical Abstracts: | 2024:182916 |
| Chemical Abstracts (print): | 186:118565 |
| OpenAlex: | W4390966433 |
Citing:
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