| Форма представления | Тезисы и материалы конференций в российских журналах и сборниках |
| Год публикации | 2024 |
| Язык | русский |
|
Иванова Валентина Юрьевна, автор
Чевела Владимир Всеволодович, автор
|
| Библиографическое описание на языке оригинала |
Berezin N.B. / ELECTRODEPOSITION OF ALLOYS FROM AQUEOUS SOLUTIONS OF HETERONUCLEAR COMPLEXES / N. B. Berezin, V. V. Chevela, Zh. V. Mezhevich, V.Yu. Ivanova / ХХII MENDELEEV CONGRESS ON GENERAL AND APPLIED CHEMISTRY. - Federal Territory “Sirius”, Russia, 2024. - T. 6. - C. 97. |
| Аннотация |
ХХII MENDELEEV CONGRESS ON GENERAL AND APPLIED CHEMISTRY |
| Ключевые слова |
zinc (II), chromium (III), nickel(II), glycine, aqueus solution, heteronuclear complexes, electrochemical reduction, corrosion resistance |
| Название журнала |
ХХII MENDELEEV CONGRESS ON GENERAL AND APPLIED CHEMISTRY
|
| Пожалуйста, используйте этот идентификатор, чтобы цитировать или ссылаться на эту карточку |
https://repository.kpfu.ru/?p_id=305477 |
Полная запись метаданных  |
| Поле DC |
Значение |
Язык |
| dc.contributor.author |
Иванова Валентина Юрьевна |
ru_RU |
| dc.contributor.author |
Чевела Владимир Всеволодович |
ru_RU |
| dc.date.accessioned |
2024-01-01T00:00:00Z |
ru_RU |
| dc.date.available |
2024-01-01T00:00:00Z |
ru_RU |
| dc.date.issued |
2024 |
ru_RU |
| dc.identifier.citation |
Berezin N.B. / ELECTRODEPOSITION OF ALLOYS FROM AQUEOUS SOLUTIONS OF HETERONUCLEAR COMPLEXES / N. B. Berezin, V. V. Chevela, Zh. V. Mezhevich, V.Yu. Ivanova / ХХII MENDELEEV CONGRESS ON GENERAL AND APPLIED CHEMISTRY. - Federal Territory “Sirius”, Russia, 2024. - T. 6. - C. 97. |
ru_RU |
| dc.identifier.uri |
https://repository.kpfu.ru/?p_id=305477 |
ru_RU |
| dc.description.abstract |
ХХII MENDELEEV CONGRESS ON GENERAL AND APPLIED CHEMISTRY |
ru_RU |
| dc.description.abstract |
The aim of the work is to obtain data on the role of heteronuclear complexes and their electrochemical behavior
in the production of alloys and corresponding coatings.
The processes of complexation in the following systems have been studied: zinc (II)-chromium (III)-nickel(II)-glycine-
water. Heteronuclear complexes have been established CrNiZn(HGl)4Gl4
3+ (lgK =1.01? 0.32), the constants of formation
and the proportion of their accumulation depending on the pH.
The processes of complexation in the following systems have been studied: zinc (II)-chromium(III)-Co(II)-glycine-
water. The compositions of heteronuclear compounds, the proportions of their accumulation and the constants
of formation have been established: CrCoZn(HGly)5Gly3
4+ (lgK= 2,31?0,01); CrCoZn(HGly)3Gly5
2+ (lgK=-1,36?0,05)
и CrCoZn(HGly)2Gly6
+ (lgK=-4,23?0,09).
By the method of removing polarization curves, the possibility of convergence of the potentials of the joint electrochemical
reduction of metal ions in a heteronuclear compound is shown. As a theoretical justification for the convergence
of electrode recovery potentials, some considerations are expressed, which are currently being confirmed. Thus,
when filling molecular orbitals with electrons in a heteronuclear molecule, the orbital of a more electronegative atom
makes a greater contribution to the binding orbital, and the orbital of a less negative atom makes a greater contribution
to the loosening orbital, which reduces the overvoltage of the reduction of a more electronegative metal. In addition,
an increase in the effective radius of complex heteronuclear ions in comparison with mononuclear compounds reduces
the activation energy of their reduction. The elemental composition of the studied alloy sediments was determined
by X-ray fluorescence analysis. It is shown that the alloy contains zinc, chromium, nickel, iron and manganese, while
the other contains zinc, chromium, cobalt, iron and manganese with different ratios. Electrochemical measurements
and determination of the mass index indicate a higher corrosion resistance of the coatings obtained in comparison with
zinc coatings. |
ru_RU |
| dc.language.iso |
ru |
ru_RU |
| dc.subject |
zinc (II) |
ru_RU |
| dc.subject |
chromium (III) |
ru_RU |
| dc.subject |
nickel(II) |
ru_RU |
| dc.subject |
glycine |
ru_RU |
| dc.subject |
aqueus solution |
ru_RU |
| dc.subject |
heteronuclear complexes |
ru_RU |
| dc.subject |
electrochemical reduction |
ru_RU |
| dc.subject |
corrosion resistance |
ru_RU |
| dc.title |
ELECTRODEPOSITION OF ALLOYS FROM AQUEOUS SOLUTIONS OF HETERONUCLEAR COMPLEXES |
ru_RU |
| dc.type |
Тезисы и материалы конференций в российских журналах и сборниках |
ru_RU |
|
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