Dry reforming of methane;
Supported NiCo alloy particles;
Carbon deposition in DRM;
SSITKA;
Carbon paths in DRM;
CARBON-DIOXIDE;
SYNGAS PRODUCTION;
NI-CO;
BIMETALLIC CATALYSTS;
SYNTHESIS GAS;
OXYGEN;
CH4;
CERIA;
REACTIVITY;
DEPOSITION;
D O I:
10.1016/j.catcom.2023.106674
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The effects of metal loading and particle size of NiCo alloy deposited on Ce0.75Zr0.25O2-delta carrier on the carbon reaction paths of dry reforming of methane at 750 degrees C with respect to the observed long-term activity profiles was elucidated. Small NiCo nanoparticles (7.8 nm) showed progressive deactivation as opposed to the larger ones (43 nm) which exhibited self-regeneration. Towards this goal, appropriate transient kinetic isotopic experiments (use of 18O2 and 13CO2) and other catalyst characterization studies (transient isothermal reduction, XPS, HAADF-STEM-EDX) were conducted. This work paves the way for the design of highly active and coke-resistant reducible metal oxides-supported NiCo.
机构:
King Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi ArabiaKing Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
Al-Fatesh, Ahmed Sadeq
;
Fakeeha, Anis Hamza
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h-index: 0
机构:
King Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi ArabiaKing Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
Fakeeha, Anis Hamza
;
Ibrahim, Ahmed Aidid
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h-index: 0
机构:
King Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi ArabiaKing Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
Ibrahim, Ahmed Aidid
;
Abasaeed, Ahmed Elhag
论文数: 0引用数: 0
h-index: 0
机构:
King Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi ArabiaKing Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
机构:
King Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi ArabiaKing Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
Al-Fatesh, Ahmed Sadeq
;
Fakeeha, Anis Hamza
论文数: 0引用数: 0
h-index: 0
机构:
King Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi ArabiaKing Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
Fakeeha, Anis Hamza
;
Ibrahim, Ahmed Aidid
论文数: 0引用数: 0
h-index: 0
机构:
King Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi ArabiaKing Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia
Ibrahim, Ahmed Aidid
;
Abasaeed, Ahmed Elhag
论文数: 0引用数: 0
h-index: 0
机构:
King Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi ArabiaKing Saud Univ, Coll Engn, Chem Engn Dept, POB 800, Riyadh 11421, Saudi Arabia