Composite Catalytic Materials for Steam Reforming of Methane and Oxygenates: Combinatorial Synthesis, Characterization and Performance
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Conference |
Catalysis: Art to Science : an International Symposium in Honour of the Contribution of Julian Ross to the Advancement of Catalysis Science
03-03 Sep 2007
,
Limerick
|
| Journal |
Catalysis Today
ISSN: 0920-5861
, E-ISSN: 1873-4308
|
| Output data |
Year: 2009,
Volume: 145,
Number: 1-2,
Pages: 127-137
Pages count
: 11
DOI:
10.1016/j.cattod.2008.04.034
|
| Tags |
Acetone, CH4, Composites, Doped ceria-zirconia oxides, Ethanol, Ni-YSZ, Ru, Steam reforming |
| Authors |
Sadykov Vladislav
1
,
Mezentseva Natalia
1
,
Alikina Galina
1
,
Bunina Rimma
1
,
Rogov Vladimir
1
,
Krieger Tamara
1
,
Belochapkine Sergey
2
,
Ross Julian
3
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis, 5 Pr. Lavrentieva, 630090 Novosibirsk, Russia
|
| 2 |
Materials & Surface Science Institute, University of Limerick, Limerick, Ireland
|
| 3 |
Centre of Environmental Research, University of Limerick, Limerick, Ireland
|
|
Funding (5)
|
1
|
European Commission
|
20089 FP6-2004-ENERGY-3 SOFC600
|
|
2
|
Президиум СО РАН
|
95
|
|
3
|
North Atlantic Treaty Organization
|
SfP-980878
|
|
4
|
International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union
|
05-1000005-7663
|
|
5
|
International Association for the Promotion of Co-operation with Scientists from the New Independent States of the Former Soviet Union
|
YSF 06-1000014-5773
|
Using robotic workstation, a number of composite materials based on NiO/yttria-doped zirconia (YSZ) cermet promoted with doped ceria–zirconia fluorite-like mixed oxides and Ru were synthesized. The materials were characterized by XRD, BET, TEM, H2 TPR, and their catalytic performance was estimated in the reactions of methane, ethanol and acetone steam reforming at short (10–36 ms) contact times. The amount of deposited carbonaceous species was estimated by temperature-programmed oxidation. Complex fluorite-like oxides as promoters minimize coking even in stoichiometric fuel/steam feeds. Promotion by small (<1 wt.%) amount of Ru further decreases coking and facilitates activation of such molecules as CH4 and acetone, thus ensuring a high level of performance in the intermediate temperature (500–600 °C) range. Factors controlling performance of these composites in steam reforming reactions such as lattice oxygen mobility in complex oxide promoters controlled by their chemical composition, strong interaction between components in composites, state and reactivity of supported Ru were assessed.