Results 21 to 30 of about 1,161 (179)

Ceria-zirconia supported gold catalysts

open access: yesAnnales UMCS, Chemistry, 2009
Wydzielił się z: Annales Universitatis Mariae Curie-Skłodowska. Sectio AA, Physica et Chemia Vol.5 (1950)-Vol.29/30 (1974/1975) ; Wydzielił się z: Annales Universitatis Mariae Curie-Skłodowska. Sectio AA, Physica et Chemia Vol.5 (1950)-Vol.29/30 (1974/1975)
Dobrosz-Gómez, I., Rynkowski, J. M.
openaire   +1 more source

Influence of doping of ceria and scandia on the point defects of zirconia based material

open access: yes上海师范大学学报. 自然科学版, 2017
The advanced properties of rare-earth oxide doped zirconia materials are closely related to the different types of point defects which exist in zirconia crystals.These point defects are mainly in the form of oxygen vacancies.The research sample is ...
Tao Jingchao
doaj   +1 more source

Mechanical properties of partially stabilized zirconia for dental applications

open access: yesJournal of Asian Ceramic Societies, 2019
In esthetic dental care, porcelain-fused-to-metal crowns have long been used for dental restoration. Since a dental prosthesis is placed in the harsh environment of the oral cavity over long periods, metal allergy due to eluate from the metal frame has ...
Hidekazu Tanaka   +3 more
doaj   +1 more source

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

Non-Noble Metal Nanocatalysts for Hydrogen Evolution. [PDF]

open access: yesAdv Sci (Weinh)
Recent overviews and latest developments of diverse classes of non‐noble catalysts for application toward high‐performance photocatalysis, thermocatalytic steam reforming, and electrocatalysis. Toward sustainability objectives, several advanced characterization tools in combination with the latest breakthroughs in machine learning for material ...
Diguna LJ   +7 more
europepmc   +2 more sources

Síntese e caracterização de precursores de cério de alta pureza Synthesis and characterization of high purity cerium precursors

open access: yesCerâmica, 2001
Neste trabalho são destacadas as técnicas de separação e de purificação de terras raras por precipitação fracionada e troca iônica, além das técnicas usualmente utilizadas no controle analítico destes materiais.
C. A. S. Queiroz   +3 more
doaj   +1 more source

Mechanical and Electrical Characterization of 8YSZ-ScCeSZ Ceramics

open access: yesMaterials Research, 2023
The effects of small amounts (up to 5 wt.%) of scandia- and ceria-stabilized zirconia on the electrical conductivity, and the elastic modulus and hardness of yttria-stabilized zirconia were investigated by impedance spectroscopy and nanoindentation tests,
T. G. Fujimoto   +4 more
doaj   +1 more source

Influence of roughness on initial in vitro response of cells to Al2O3/Ce-TZP nanocomposite

open access: yesJournal of Asian Ceramic Societies, 2021
Al2O3/Ce-tetragonal zirconia polycrystal (TZP) nanocomposite was synthesized by a colloidal processing route and sintered in air atmosphere. Sandblasting treatment was made to alumina toughened zirconia (ATZ) nanocomposite in order to evaluate the ...
M. Suárez   +6 more
doaj   +1 more source

Phonon‐Driven Tetrahedral Tilts Enable Ultralow Bulk Thermal Expansion and Interstitial Oxide‐Ion Migration in Phenacite Solid Electrolytes

open access: yesAdvanced Science, EarlyView.
This work demonstrates a design paradigm of phonon‐driven negative‐thermal‐expansion (NTE) flexible framework that exploits the intrinsic lattice flexibility of NTE frameworks to simultaneously suppress thermal expansion and activate oxide‐ion conduction, offering a promising strategy to mitigate TEC mismatch in solid‐state ionic devices.
Xiaohui Li   +10 more
wiley   +1 more source

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