Study of Regular Features of the Crystallization of Platinum on Carriers - 2 Full article
Journal |
Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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Output data | Year: 1969, Volume: 10, Number: 2-2, Pages: 313-317 Pages count : 5 | ||
Tags | Alumina; Crystallization; PLATINUM AND ALLOYS | ||
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Abstract:
Part 2 is concerned with the effect of thermal treatment in the 300 to 700 C range on the degree of dispersion and the activity of platinum deposited on aluminum oxide in amounts of 0. 1 to 2. 0 wt. %. At each temperature there is a linear relationship between the reciprocal of the degree of dispersion and the surface concentration. The coefficient of proportionality (crystallization constant) characterizes the intensity of the process of the aggregation of platinum on the surface of aluminum oxide at a given temperature. The dependence of the crystallization constant on temperature is defined by an exponential equation. Assumptions are presented concerning the mechanism of the formation of platinum particles on the surface of the carrier, which adequately explain the experimental data. The specific activity of the platinum- alumina catalysts is constant irrespective of the temperature of calcining in a hydrogen stream, the surface concentration and the corresponding changes in the degree of dispersion of the active component.
Cite:
Zaidman N.M.
, Dzis'ko V.A.
, Karnaukhov A.P.
, Kefeli L.M.
, Krasilenko N.P.
, Koroleva N.G.
, Ratner I.D.
Study of Regular Features of the Crystallization of Platinum on Carriers - 2
Kinetics and Catalysis. 1969. V.10. N2-2. P.313-317. Scopus РИНЦ
Study of Regular Features of the Crystallization of Platinum on Carriers - 2
Kinetics and Catalysis. 1969. V.10. N2-2. P.313-317. Scopus РИНЦ
Original:
Зайдман Н.М.
, Дзисько В.А.
, Карнаухов А.П.
, Кефели Л.М.
, Красиленко Н.П.
, Королева Н.Г.
, Ратнер И.Д.
Изучение закономерностей кристаллизации платины на носителях. II. Влияние термической обработки на дисперсность и активность платины на окиси алюминия
Кинетика и катализ. 1969. Т.10. №2. С.386-391. РИНЦ
Изучение закономерностей кристаллизации платины на носителях. II. Влияние термической обработки на дисперсность и активность платины на окиси алюминия
Кинетика и катализ. 1969. Т.10. №2. С.386-391. РИНЦ
Dates:
Published print: | Mar 1, 1969 |
Identifiers:
Scopus | 2-s2.0-0014479099 |
Elibrary | 30625146 |