Results 21 to 30 of about 66,942 (150)

Redox behaviour of a ceria–zirconia inverse model catalyst [PDF]

open access: yes, 2019
The redox behaviour modification following the addition of zirconia to ceria nanostructures supported on Rh(111) has been investigated using a combination of Low Energy Electron Diffraction (LEED) and X-ray Photoemission Electron Microscopy (XPEEM). Soft
Maccherozzi, Francesco   +15 more
core   +2 more sources

Elastic deformation in ceria nanorods via a fluorite-to-rutile phase transition [PDF]

open access: yes, 2010
Atomistic simulations reveal that ceria nanorods, under uniaxial tension, can accommodate over 6% elastic deformation. Moreover, a reversible fluorite-to- rutile phase change occurs above 6% strain for a ceria nanorod that extends along [110]. We also
Sayle, Thi X. T.   +3 more
core   +1 more source

Mechanical properties of ceria nanorods and nanochains; The effect of dislocations, grain-boundaries and oriented attachment [PDF]

open access: yes, 2011
We predict that the presence of extended defects can reduce the mechanical strength of a ceria nanorod by 70%. Conversely, the pristine material can deform near its theoretical strength limit.
Amit Kumar   +17 more
core   +1 more source

Atomistic simulation of oxide materials with catalytic properties [PDF]

open access: yes, 2009
When supported, thin films demonstrate remarkable structural transformations, with important implications for catalysis, sensors, electrochemistry, semiconductors or superconductors.
Măicăneanu, A.
core   +7 more sources

Possible Fine-Tuning of Methane Activation toward C2 Oxygenates by 3d-Transition Metal-Ions Doped Nano-Ceria-Zirconia

open access: yes, 2022
In this work, we demonstrate a simple sol–gel technique to prepare metal-ion(s)-doped ceria-zirconia solid solution for efficient catalytic methane activation.
Abhaya Kumar Mishra (14128888)   +5 more
core   +1 more source

Mechanical properties of mesoporous ceria nanoarchitectures [PDF]

open access: yes, 2014
Architectural constructs are engineered to impart desirable mechanical properties facilitating bridges spanning a thousand meters and buildings nearly 1 km in height.
Sayle, T.X.T.   +10 more
core   +1 more source

Sintering Kinetics of Plasma-Sprayed Zirconia TBCs

open access: yes, 2007
A model of the sintering exhibited by EB-PVD TBCs, based on principles of free energy minimization, was recently published by Hutchinson et al. In the current paper, this approach is applied to sintering of plasma-sprayed TBCs and comparisons are made ...
Cipitria, A.   +4 more
core   +2 more sources

Osseointegration of zirconia implants compared with titanium : an in vivo study [PDF]

open access: yes, 2008
Background Titanium and titanium alloys are widely used for fabrication of dental implants. Since the material composition and the surface topography of a biomaterial play a fundamental role in osseointegration, various chemical and physical surface ...
Ulrich Meyer   +19 more
core   +2 more sources

Enhanced Activity and Stability of Gold/Ceria-Titania for the Low-Temperature Water-Gas Shift Reaction

open access: yesFrontiers in Chemistry, 2019
Gold supported on ceria-zirconia is one of the most active low temperature water-gas shift catalysts reported to date but rapid deactivation occurs under reaction conditions.
James H. Carter   +6 more
doaj   +1 more source

Influence of Nanoscale Surface Arrangements on the Oxygen Transfer Ability of Ceria–Zirconia Mixed Oxide

open access: yesInorganics, 2020
Ceria-based materials, and particularly CeO2–ZrO2 (CZ) solid solutions are key ingredient in catalyst formulations for several applications due to the ability of ceria to easily cycling its oxidation state between Ce4+ and Ce3+.
Eleonora Aneggi   +2 more
doaj   +1 more source

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