Selective Electrooxidation of Lead from Binary Electrolytic Lead-platinum Precipitate; Journal of Analytical Chemistry; Vol. 76, iss. 8
| Parent link: | Journal of Analytical Chemistry Vol. 76, iss. 8.— 2021.— [P. 1002–1006] |
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| Summary: | Title screen Electrooxidation of components from different phase structures obtained by combined electrodeposition of lead and platinum on the surface of a graphite electrode (GE) was investigated. Electrodeposition of precipitate components on the GE surface was carried out in “in situ” mode. There was made an assumption about the composition of phase structures on the surface of the GE. Heat of mixing of components of binary alloy of lead-platinum is calculated by using the thermodynamic theory of alloys. The displacement of the equilibrium potential of lead during selective electrooxidation of it from the binary electrolytic precipitate of lead-platinum was estimated in the approximation of the theory of regular solutions. It has been shown that the equilibrium potential of lead in a platinum alloy depends on the composition of the intermetallic compound (IC). After electroconcentration on the surface of the GE there are phases: lead, platinum and IC PtPb. Selective electrooxidation of lead from IC PtPb is observed at a potential of –0.3 V. The possibility of determining platinum (II, IV) ions by the inversion voltammetry (IV) method on the peak of selective electrooxidation of lead from an intermetallic compound with platinum at a potential of –0.3 V. Режим доступа: по договору с организацией-держателем ресурса |
| Idioma: | inglés |
| Publicado: |
2021
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| Subjects: | |
| Acceso en liña: | https://doi.org/10.1134/S1061934821080086 |
| Formato: | MixedMaterials Electrónico Capítulo de libro |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=666478 |
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| 200 | 1 | |a Selective Electrooxidation of Lead from Binary Electrolytic Lead-platinum Precipitate |f N. A. Kolpakova, A. V. Egoshina | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 21 tit.] | ||
| 330 | |a Electrooxidation of components from different phase structures obtained by combined electrodeposition of lead and platinum on the surface of a graphite electrode (GE) was investigated. Electrodeposition of precipitate components on the GE surface was carried out in “in situ” mode. There was made an assumption about the composition of phase structures on the surface of the GE. Heat of mixing of components of binary alloy of lead-platinum is calculated by using the thermodynamic theory of alloys. The displacement of the equilibrium potential of lead during selective electrooxidation of it from the binary electrolytic precipitate of lead-platinum was estimated in the approximation of the theory of regular solutions. It has been shown that the equilibrium potential of lead in a platinum alloy depends on the composition of the intermetallic compound (IC). After electroconcentration on the surface of the GE there are phases: lead, platinum and IC PtPb. Selective electrooxidation of lead from IC PtPb is observed at a potential of –0.3 V. The possibility of determining platinum (II, IV) ions by the inversion voltammetry (IV) method on the peak of selective electrooxidation of lead from an intermetallic compound with platinum at a potential of –0.3 V. | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Journal of Analytical Chemistry | ||
| 463 | |t Vol. 76, iss. 8 |v [P. 1002–1006] |d 2021 | ||
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a graphite electrodes | |
| 610 | 1 | |a lead-platinum electrolytic precipitate | |
| 610 | 1 | |a regular solution | |
| 610 | 1 | |a heat of components mixing | |
| 610 | 1 | |a method of inversion voltammetry | |
| 610 | 1 | |a графитовые электроды | |
| 610 | 1 | |a электролитические осадки | |
| 610 | 1 | |a инверсионная вольтамперометрия | |
| 700 | 1 | |a Kolpakova |b N. A. |c Maiden Name Polukarova |c russian chemist |f 1942- |g Nina Alexandrovna |3 (RuTPU)RU\TPU\pers\28201 | |
| 701 | 1 | |a Egoshina |b A. V. |g Anastasiya Vladimirovna | |
| 712 | 0 | 2 | |a Национальный исследовательский Томский политехнический университет |b Инженерная школа природных ресурсов |b Отделение химической инженерии |3 (RuTPU)RU\TPU\col\23513 |
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