Correlation of Oxygen Storage Capacity and Structural Distortion in Transition-Metal-, Noble-Metal-, and Rare-Earth-Ion-Substituted CeO2from First Principles Calculation

2010 ◽  
Vol 22 (18) ◽  
pp. 5184-5198 ◽  
Author(s):  
Asha Gupta ◽  
U. V. Waghmare ◽  
M. S. Hegde
Keyword(s):  
Rare Earth ◽  
Transition Metal ◽  
Noble Metal ◽  
First Principles ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
First Principles Calculation ◽  
Oxygen Storage ◽  
Structural Distortion ◽  
Rare Earth Ion

Mn3O4 doped with highly dispersed Zr species: a new non-noble metal oxide with enhanced activity for three-way catalysis

2016 ◽  
Vol 40 (12) ◽  
pp. 10108-10115 ◽  
Author(s):  
Genyuan Zhao ◽  
Jing Li ◽  
Wenshuang Zhu ◽  
Xueqin Ma ◽  
Yonghua Guo ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Manganese Oxide ◽  
Noble Metal ◽  
Storage Capacity ◽  
Catalytic Properties ◽  
Oxygen Storage Capacity ◽  
Oxide Catalysts ◽  
Oxygen Storage ◽  
Highly Dispersed ◽  
Three Way Catalysis

Herein, we demonstrate the influence of zirconium species on promoting the oxygen storage capacity and three-way catalytic properties of zirconium-manganese oxide catalysts.

Influence of transition metal electronegativity on the oxygen storage capacity of perovskite oxides

2016 ◽  
Vol 52 (68) ◽  
pp. 10369-10372 ◽  
Author(s):  
Lu Liu ◽  
Daniel D. Taylor ◽  
Efrain E. Rodriguez ◽  
Michael R. Zachariah
Keyword(s):  
Transition Metal ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Perovskite Oxides ◽  
Oxygen Storage ◽  
Chemical Looping Combustion ◽  
Chemical Looping ◽  
Oxygen Carriers ◽  
Practical Development ◽  
Selection Of

The selection of highly efficient oxygen carriers (OCs) is a key step necessary for the practical development of chemical looping combustion (CLC).

Overview: Modification of Cerium Oxide in Three-Way Catalysts

2014 ◽  
Vol 575 ◽  
pp. 97-102 ◽  
Author(s):  
M. Nazri Abu Shah ◽  
S. Hanim Md Nor ◽  
Kamariah Noor Ismail ◽  
Abdul Hadi
Keyword(s):  
Thermal Stability ◽  
Rare Earth ◽  
Metal Oxides ◽  
Cerium Oxide ◽  
Storage Capacity ◽  
Rare Earth Metals ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Alkaline Metals ◽  
Three Way Catalyst

An overview of modification of cerium oxide, CeO2which is employed in the three-way catalyst (TWCs) is presented in this article. The modifications of cerium oxide, CeO2incorporated with the metal oxides for the improvement of thermal stability, microstructure and oxygen storage capacity (OSC) are discussed. In view of that, the types of metal oxide are grouped into transition metals, rare earth metals, and alkaline metals and the effect of each group into cerium oxide, CeO2are elaborated.

First Principles Hartree-Fock Cluster Study Of Very Dilute Transition Metal And Rare-Earth Ion Systems In Silicon

2008 ◽  
Author(s):  
R. H. Pink ◽  
S. R. Badu ◽  
A. Dubey ◽  
R. H. Scheicher ◽  
J. Jeong ◽  
...  
Keyword(s):  
Rare Earth ◽  
Transition Metal ◽  
First Principles ◽  
Rare Earth Ion ◽  
Hartree Fock

Rational design of nanostructured, noble metal free, ceria–zirconia catalysts with outstanding low temperature oxygen storage capacity

2013 ◽  
Vol 1 (15) ◽  
pp. 4836 ◽  
Author(s):  
M. Pilar Yeste ◽  
Juan C. Hernández-Garrido ◽  
D. Carolina Arias ◽  
Ginesa Blanco ◽  
José M. Rodríguez-Izquierdo ◽  
...  
Keyword(s):  
Low Temperature ◽  
Noble Metal ◽  
Rational Design ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Metal Free

Nanocrystalline Mixed Metal Oxides – Novel Oxygen Storage Materials

2003 ◽  
Vol 788 ◽  
Author(s):  
Harry Sarkas ◽  
Patrick G. Murray ◽  
Aaron Fay ◽  
R. W. Brotzman
Keyword(s):  
Particle Size ◽  
Rare Earth ◽  
Storage Capacity ◽  
Rare Earth Oxide ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Nanocrystalline Particle ◽  
Oxygen Storage Material ◽  
The Mean ◽  
Thermal Stability Of

ABSTRACTNanophase Technologies Corporation (NTC) employs a new physical vapor synthesis technique to manufacture ceria-based mixed rare earth oxide nanomaterials. The mixed rare earth oxide nanoparticles are nonporous, dense, discrete crystals. The compositions are solid solutions that remain thermally stable to above 1050°C.Ceria is an active oxygen storage material. Doping ceria with other rare earth metals enhances the thermal stability of nanocrystalline particle size and increases the oxygen storage capacity (OSC). The mean particle size and OSC of ceria-based mixed rare earth oxides are presented as a function of particle composition, morphology, and thermal history.These materials are commercially available and are being engineered for several applications including oxygen storage catalysts and polishing materials.

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