In situ Kinetics Studies of Zn–Al LDH Intercalation with Corrosion Related Species Научная публикация
Журнал |
PCCP: Physical Chemistry Chemical Physics
ISSN: 1463-9076 , E-ISSN: 1463-9084 |
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Вых. Данные | Год: 2020, Том: 22, Номер: 31, Страницы: 17574-17586 Страниц : 13 DOI: 10.1039/d0cp01765e | ||||||||
Ключевые слова | Aluminum alloys; Aluminum corrosion; Crystallization; Negative ions; Nitrates; Nucleation | ||||||||
Авторы |
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Организации |
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Реферат:
Kinetic parameters for three anion exchange reactions – Zn-LDH-NO3 → Zn-LDH-Cl, Zn-LDH-NO3 → Zn-LDH-SO4 and Zn-LDH-NO3 → Zn-LDH-VOx – were obtained by in situ synchrotron study. The first and the second ones are two-stage reactions; the first stage is characterized by the two-dimensional diffusion-controlled reaction following deceleratory nucleation and the second stage is a one-dimensional diffusion-controlled reaction also with a decelerator nucleation effect. In the case of exchange NO3− → Cl− host anions are completely released, while in the case of NO3− → SO42− the reaction ends without complete release of nitrate anions. The exchange of Zn-LDH-NO3 → Zn-LDH-VOx is a one-stage reaction and goes much slower than the previous two cases. The latter is characterized by a one stage two-dimensional reaction with an instantaneous nucleation. As a result, at the end of this process there are two crystalline phases with different polyvanadate species, presumably V4O124− and V2O74−, nitrate anions were not completely released. The rate of replacing NO3− anions by guest ones can be represented as Cl− > SO42− > VOxy−.
Библиографическая ссылка:
Iuzviuk M.H.
, Bouali A.C.
, Serdechnova M.
, Yasakau K.A.
, Wieland D.C.F.
, Dovzhenko G.
, Mikhailau A.
, Blawert C.
, Zobkalo I.A.
, Ferreira M.G.S.
, Zheludkevich M.L.
In situ Kinetics Studies of Zn–Al LDH Intercalation with Corrosion Related Species
PCCP: Physical Chemistry Chemical Physics. 2020. V.22. N31. P.17574-17586. DOI: 10.1039/d0cp01765e WOS Scopus CAPlusCA PMID OpenAlex
In situ Kinetics Studies of Zn–Al LDH Intercalation with Corrosion Related Species
PCCP: Physical Chemistry Chemical Physics. 2020. V.22. N31. P.17574-17586. DOI: 10.1039/d0cp01765e WOS Scopus CAPlusCA PMID OpenAlex
Даты:
Поступила в редакцию: | 1 апр. 2020 г. |
Принята к публикации: | 15 июл. 2020 г. |
Опубликована online: | 20 июл. 2020 г. |
Опубликована в печати: | 21 авг. 2020 г. |
Идентификаторы БД:
Web of science: | WOS:000560847500011 |
Scopus: | 2-s2.0-85089712459 |
Chemical Abstracts: | 2020:1408809 |
Chemical Abstracts (print): | 174:118433 |
PMID (PubMed): | 32716424 |
OpenAlex: | W3043476991 |