Ni-Containing Catalysts Based on Ordered Mesoporous MgO–Al2O3 for Methane Dry Reforming
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Catalysis for Sustainable Energy
ISSN: 2084-6819
|
| Output data |
Year: 2018,
Volume: 5,
Pages: 59-66
Pages count
: 8
DOI:
10.1515/cse-2018-0008
|
| Tags |
methane dry reforming, nickel, mesoporous MgO-Al2O3 supports, synthesis, catalytic activity, coking stability, sintering |
| Authors |
Pavlova Svetlana
1
,
Fedorova Yuliya
1
,
Ishchenko Arkadii
1
,
Melgunov Maxim
1
,
Melgunova Elena
1
,
Simonov Mikhail
1
,
Rogov Vladimir
1
,
Krieger Tamara
1
,
Sadykov Vladislav
1
,
Roger Anne-Cecile
2
|
| Affiliations |
| 1 |
Boreskov Institute of Catalysis SB RAS
|
| 2 |
University of Strasbourg
|
|
Funding (1)
|
1
|
Russian Foundation for Basic Research
|
18-58-16007
|
The ordered mesoporous Mg- and Ni-Mg-alumina samples of general formula xwt%Mg-Al2O3 and ywt%Ni-x wt%Mg-Al2O3 (x, y = 5, 10 % wt) have been prepared by the one-pot evaporation induced self-assembly (EISA) method using as a template Pluronic P123. The textural and structural properties of the prepared samples have been characterized by N2 adsorption-desorption analysis, BET, XRD, TEM with EDX, HAADF-STEM, H2-TPR. The samples calcined at 700C had the ordered mesoporous structure with the SSA of 170-250 m2/g, pore volume of 0.5-0.64 cm3/g and narrow distribution of the pore size (the mean size 12-16 nm). For the catalysts prepared by the one-pot EISA method, the size of metal Ni particles was in the range of 3-12 nm that was conditioned by their confinement in the mesopores and the interaction with MgO and Al2O3. Testing in methane dry reforming in the feed 15v.% CH4+ 15v.%CO2, He balance at 650-750°C and contact time 0.015 s has shown the higher activity and stability of the ordered mesoporous 10w%Ni-10w%Mg-Al2O3 catalysts prepared by the one-pot method as compared with the catalyst of the same composition obtained by impregnation.