In situ XRD Study of Oscillations during the Methane Oxidation over Palladium and Nickel Foils
Conference Abstracts
| Общее |
Language:
Английский,
Genre:
Conference Abstracts,
Status:
Published,
Source type:
Original
|
| Conference |
EuropaCat-XII: 12th European Congress on Catalysis “Catalysis: Balancing the use of fossil and renewable resources”
30 Aug - 4 Sep 2015
,
Казань
|
| Source |
EuropaCat XII. Catalysis: Balancing the use of fossil and renewable resources. XII European Congress on Catalysis, Kazan (Russia), 30 August - 4 September, 2015 : Book of Abstracts
Compilation,
Boreskov Institute of Catalysis. Novosibirsk.2015.
2184 c. ISBN 9785906376107.
publication_identifier_short.rinz_identifier_type
|
| Output data |
Year: 2015,
Pages: 620-621
Pages count
: 2
|
| Authors |
Saraev A.A.
1
,
Vinokurov Z.S.
1
,
Shmakov A.N.
1
,
Kaichev V.V.
1
,
Bukhtiyarov V.I.
1
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, Novosibirsk, Russia
|
|
Funding (1)
|
1
|
Council for Grants of the President of the Russian Federation
|
НШ-5340.2014.3
|
Self-sustained oscillations in the methane oxidation over a Pd and Ni foils were studied in situ using time-resolved XRD. Regular oscillations of a relaxation type were observed at the atmospheric pressure in oxygen-deficient conditions in a temperature range of 350–500°C in the case of Pd and in a temperature range of 650-900°C in the case of Ni. During the oscillations the periodic changes of XRD reflex intensities corresponding to Pd, PdO, and “PdCx-like” phases or Ni and NiO phases were accompanied by synchronous variations of the catalyst temperature. The study has clearly confirmed that the originating of oscillations in the catalytic oxidation of methane in both the cases is determined by the periodic oxidation/reduction of the catalyst.