Original Monte Carlo Method for Analysis of Oxygen Mobility in Complex Oxides by Simulation of Oxygen Isotope Exchange Data
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Conference |
16th International Conference on Solid State Ionics
01-06 Jul 2007
,
Shanghai
|
| Journal |
Solid State Ionics
ISSN: 0167-2738
|
| Output data |
Year: 2008,
Volume: 179,
Number: 21-26,
Pages: 847-850
Pages count
: 4
DOI:
10.1016/j.ssi.2007.12.015
|
| Tags |
CeO2-ZrO2, Isotopic oxygen exchange, Monte Carlo simulation, Pt/CeO2-ZrO2-La2O3, Transient kinetic experiments |
| Authors |
Efremov Dmitrii
1
,
Pinaeva Larisa
1
,
Sadykov Vladislav
1
,
Mirodatos Claude
2
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS, pr. Lavrentieva, 5, Novosibirsk, 630090, Russia
|
| 2 |
Institut de Recherches sur la Catalyse, 2 av. A. Einstein, F-69626 Villeurbanne Cedex, France
|
|
Funding (1)
|
1
|
Russian Foundation for Basic Research
|
05-03-34761
|
The kinetics of 16O/18O isotopic exchange over CeO2–ZrO2 and CeO2–ZrO2–La2O3 were investigated at T = 923 K and P = 760 Torr by original Monte Carlo method simulating these processes in the time mode of real transient kinetic experiments. The rate constants of the elementary stages of isotopic exchange giving excellent agreement between calculated and experimental isotopic transient curves were found. Preliminary results for modeling isotopic exchange over Pt/CeO2–ZrO2 and Pt/CeO2–ZrO2–La2O3 were also obtained and discussed.