An 1H NMR Microimaging Visualization of Hexachloroplatinate Dianion Redistribution within a Porous γ-Al2O3 Pellet in the Course of Supported Catalyst Preparation Научная публикация
| Журнал |
The Journal of Physical Chemistry B
ISSN: 1520-6106 , E-ISSN: 1520-5207 |
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| Вых. Данные | Год: 2000, Том: 104, Номер: 9, Страницы: 1966-1970 Страниц : 5 DOI: 10.1021/jp994412+ | ||||
| Ключевые слова | CONCENTRATION PROFILES; IMPREGNATION; ALUMINA; RELAXATION; FLUIDS | ||||
| Авторы |
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| Организации |
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Информация о финансировании (3)
| 1 | Российский фонд фундаментальных исследований | 99-03-32314 |
| 2 | Сибирское отделение Российской академии наук | |
| 3 | Международный благотворительный научный фонд им. академика К.И. Замараева |
Реферат:
The application of the 1H NMR microimaging technique to the indirect mapping of the spatial distribution of hexachloroplatinate dianion within porous alumina pellets is reported. It is demonstrated that the nuclear spin−lattice relaxation times of liquids filling the pores of the pellet increase in the presence of the adsorbed hexachloroplatinate dianion. The microimaging results for the supported catalysts with two types of platinum distribution (egg-shell and egg-white) are shown to be consistent with the results obtained by the staining method and electron probe microanalysis. Finally, the microimaging technique is employed for a nondestructive visualization of the dynamics of the active component redistribution in the course of the supported catalyst preparation by competitive adsorption.
Библиографическая ссылка:
Khitrina L.Y.
, Koptyug I.V.
, Pakhomov N.A.
, Sagdeev R.Z.
, Parmon V.N.
An 1H NMR Microimaging Visualization of Hexachloroplatinate Dianion Redistribution within a Porous γ-Al2O3 Pellet in the Course of Supported Catalyst Preparation
The Journal of Physical Chemistry B. 2000. V.104. N9. P.1966-1970. DOI: 10.1021/jp994412+ WOS Scopus РИНЦ OpenAlex CAPlusCA
An 1H NMR Microimaging Visualization of Hexachloroplatinate Dianion Redistribution within a Porous γ-Al2O3 Pellet in the Course of Supported Catalyst Preparation
The Journal of Physical Chemistry B. 2000. V.104. N9. P.1966-1970. DOI: 10.1021/jp994412+ WOS Scopus РИНЦ OpenAlex CAPlusCA
Даты:
| Поступила в редакцию: | 15 дек. 1999 г. |
| Опубликована online: | 11 февр. 2000 г. |
| Опубликована в печати: | 1 мар. 2000 г. |
Идентификаторы БД:
| ≡ Web of science: | WOS:000085770200010 |
| ≡ Scopus: | 2-s2.0-0001266634 |
| ≡ РИНЦ: | 44912050 |
| ≡ OpenAlex: | W1974736046 |
| ≡ Chemical Abstracts: | 2000:96557 |
| ≡ Chemical Abstracts (print): | 132:213250 |