Interpretation of Isotope Exchange Data “without Time”: Nonisothermal Exchange of Dioxygen with Oxides
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Переводная
|
| Журнал |
Kinetics and Catalysis
ISSN: 0023-1584
, E-ISSN: 1608-3210
|
| Вых. Данные |
Год: 2003,
Том: 44,
Номер: 3,
Страницы: 319-322
Страниц
: 4
DOI:
10.1023/A:1024486716938
|
| Авторы |
Muzykantov V.S.
1
,
Kemnitz E.
2
,
Sadykov V.A.
1
,
Lunin V.V.
3
|
| Организации |
| 1 |
Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090 Russia
|
| 2 |
Institute of General and Inorganic Chemistry, Humboldt University, Berlin, Germany
|
| 3 |
Moscow State University, Moscow, 119899 Russia
|
|
Информация о финансировании (2)
|
1
|
Российский фонд фундаментальных исследований
|
97-03-71046
|
|
2
|
International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union
|
IR-97-402
|
As a result of transformation of isotope-exchange rate equations (isotope-kinetic equations), a relationship was derived that does not contain time and universally relates the variables of isotope composition (an isotope-mechanistic equation). With the use of this relationship, mechanistic parameters that characterize atomic rearrangements can be determined from experimental data even in cases when the rate of exchange varied in the course of a process, for example, under nonisothermal conditions. The use of the proposed approach for the treatment of the results of dynamic thermal isotope exchange in the O2–YBa2Cu3Oy and O2–Pt/CeZrO systems demonstrated that the experimental data were excellently described by the theoretical equation derived in this work