An 1H NMR Microimaging Visualization of Hexachloroplatinate Dianion Redistribution within a Porous γ-Al2O3 Pellet in the Course of Supported Catalyst Preparation Full article
| Journal |
The Journal of Physical Chemistry B
ISSN: 1520-6106 , E-ISSN: 1520-5207 |
||||
|---|---|---|---|---|---|
| Output data | Year: 2000, Volume: 104, Number: 9, Pages: 1966-1970 Pages count : 5 DOI: 10.1021/jp994412+ | ||||
| Tags | CONCENTRATION PROFILES; IMPREGNATION; ALUMINA; RELAXATION; FLUIDS | ||||
| Authors |
|
||||
| Affiliations |
|
Funding (3)
| 1 | Russian Foundation for Basic Research | 99-03-32314 |
| 2 | Siberian Branch of the Russian Academy of Sciences | |
| 3 | Zamaraev International Charitable Scientific Foundation |
Abstract:
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.
Cite:
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 ANCAN OpenAlex
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 ANCAN OpenAlex
Dates:
| Submitted: | Dec 15, 1999 |
| Published online: | Feb 11, 2000 |
| Published print: | Mar 1, 2000 |
Identifiers:
| Web of science: | WOS:000085770200010 |
| Scopus: | 2-s2.0-0001266634 |
| Elibrary: | 44912050 |
| Chemical Abstracts: | 2000:96557 |
| Chemical Abstracts (print): | 132:213250 |
| OpenAlex: | W1974736046 |