Direct CO Oxidation by Lattice Oxygen on Zr-Doped Ceria Surfaces
نویسندگان
چکیده
منابع مشابه
Direct CO Oxidation by Lattice Oxygen on Zr-Doped Ceria Surfaces
Systematic density-functional calculations have been performed to address an important issue for CO oxidation on redox ceria: the role of lattice oxygen. One major findings is that CO easily grasps one lattice oxygen atom to form CO2 and CO2 on CeO2 (111) and Ce0.75Zr0.25O2 (111) with small activation energies. Zr dopants facilitate the reduction of Ce to Ce and hence weaken the Ce–O bonds, whi...
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A series of ceria nanocatalysts have been prepared to study the structure dependency of the CO oxidation reaction. The ceria samples with well-defined nanostructures (nanocubes/Ce-NC and nanorods/Ce-NR) have been prepared using the hydrothermal method. Mesoporous ceria (Ce-MES) and ceria synthesized with solution combustion technique (Ce-SCS) have also been prepared for comparison. The lowest C...
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ژورنال
عنوان ژورنال: Catalysis Letters
سال: 2010
ISSN: 1011-372X,1572-879X
DOI: 10.1007/s10562-010-0446-5