Structural and Chemical Transformations of Ruthenium, Cobalt, and Iron Clathrochelates Used as Electrocatalysts for a Hydrogen Evolution Reaction in a Water Electrolyzer Full article
Journal |
Nanotechnologies in Russia
ISSN: 1995-0780 , E-ISSN: 1995-0799 |
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Output data | Year: 2020, Volume: 15, Number: 3-6, Pages: 341-349 Pages count : 9 DOI: 10.1134/S1995078020030179 | ||||||||||||
Tags | Cathodes; Cobalt compounds; Cobalt metallography; Coordination reactions; Decomposition; Electrocatalysts; Electrolytic cells; Hydrogen; Hydrogen evolution reaction; Iron; Iron metallography; Metadata; Sulfur compounds; Water absorption; X ray absorption; X ray absorption near edge structure spectroscopy | ||||||||||||
Authors |
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Affiliations |
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Funding (5)
1 | Russian Science Foundation | 17-13-01468 |
2 | Ministry of Science and Higher Education of the Russian Federation | 0239-2019-0003 |
3 | Ministry of Science and Higher Education of the Russian Federation | |
4 | Russian Foundation for Basic Research | 18-29-23007 (АААА-А19-119042590091-3) |
5 | Russian Foundation for Basic Research | 19-58-26022 (АААА-А20-120021990089-7) |
Abstract:
The structural evolution of three electrocatalytic systems for hydrogen evolution reaction using iron, cobalt, and ruthenium (II) clathrochelate complexes as catalysts in a water electrolyzer is studied by X-ray Absorption Near-edge Structure (XANES)/Extended X-ray Absorption Fine Structure(EXAFS) spectroscopy. The complexes are shown to display essentially different robustness under water electrolysis conditions in pilot-scale hydrogen generators. The iron and cobalt (II) clathrochelates preserve their cage, macrobicyclic structure, and the encapsulated metal (II) ion is reduced to metal (I) cation; whereas in the case of ruthenium (II) clathrochelate, the cage complex undergoes partial decomposition to form sulfur-containing products of decomposition of the encapsulating macrobicyclic hexasulfide ligand, which results in the accumulation of the ruthenium disulfide RuS2 in used clathrochelate-containing cathode material. Taking into account our experimental data on the chemical transformation of clathrochelate electrocatalysts under the conditions of 2Н+/Н2 reaction, we discuss the possibilities for boosting the efficiency of electrocatalytic systems based on this class of coordination compounds.
Cite:
Zubavichus Y.V.
, Grigor’ev S.A.
, Pushkarev A.S.
, Borisov M.M.
, Bugaenko M.G.
, Voloshin Y.Z.
, Dedov A.G.
Structural and Chemical Transformations of Ruthenium, Cobalt, and Iron Clathrochelates Used as Electrocatalysts for a Hydrogen Evolution Reaction in a Water Electrolyzer
Nanotechnologies in Russia. 2020. V.15. N3-6. P.341-349. DOI: 10.1134/S1995078020030179 WOS Scopus РИНЦ
Structural and Chemical Transformations of Ruthenium, Cobalt, and Iron Clathrochelates Used as Electrocatalysts for a Hydrogen Evolution Reaction in a Water Electrolyzer
Nanotechnologies in Russia. 2020. V.15. N3-6. P.341-349. DOI: 10.1134/S1995078020030179 WOS Scopus РИНЦ
ArticleLinkType.TRANSLATED_TO_ORIGINAL:
Зубавичус Я.В.
, Григорьев С.А.
, Пушкарев А.С.
, Борисов М.М.
, Бугаенко М.Г.
, Волошин Я.З.
, Дедов А.Г.
Структурные и химические превращения электрокатализаторов получения водорода на основе клатрохелатов рутения, кобальта и железа в электролизере воды
Российские нанотехнологии. 2020. Т.15. №3. С.352-361. DOI: 10.1134/S1992722320030176 РИНЦ
Структурные и химические превращения электрокатализаторов получения водорода на основе клатрохелатов рутения, кобальта и железа в электролизере воды
Российские нанотехнологии. 2020. Т.15. №3. С.352-361. DOI: 10.1134/S1992722320030176 РИНЦ
Dates:
Published print: | May 1, 2020 |
Submitted: | Jun 18, 2020 |
Accepted: | Jul 21, 2020 |
Published online: | Dec 28, 2020 |
Identifiers:
Web of science | WOS:000603308200010 |
Scopus | 2-s2.0-85098292677 |
Elibrary | 45048422 |
Chemical Abstracts | 2021:1091525 |
OpenAlex | W3114527774 |