Results 51 to 60 of about 1,161 (179)

The Influence of Silica Template Aging Temperature on the Properties and Catalytic Activity of Nanocast Mesoporous Zirconium-Doped Ceria

Crystals
KIT-6 samples were prepared at hydrothermal aging temperatures of 60, 100, and 140 °C, and used as templates for nanocasting of zirconium-doped ceria.
Katarina Mužina, Jakov-Stjepan Pavelić, Filip Car, Filip Brleković, Goran Dražić, Lara Mikac, Gordana Matijašić, Vesna Tomašić, Stanislav Kurajica   +8 more
doaj   +1 more source

Cerium reduction at the interface between ceria and yttria-stabilised zirconia and implications for interfacial oxygen non-stoichiometry

APL Materials, 2014
Epitaxial CeO2 films with different thickness were grown on Y2O3 stabilised Zirconia substrates. Reduction of cerium ions at the interface between CeO2 films and yttria stabilised zirconia substrates is demonstrated using aberration-corrected scanning ...
Kepeng Song, Herbert Schmid, Vesna Srot, Elisa Gilardi, Giuliano Gregori, Kui Du, Joachim Maier, Peter A. van Aken   +7 more
doaj   +1 more source

Efeito da adição de óxido de cobalto na sinterização e propriedades elétricas da cerâmica Ce0,8Gd0,2O1,9 obtida a partir de nanopós

Cerâmica, 2014
Células a combustível de óxido sólido é uma tecnologia promissora de geração de energia limpa e utilizam zircônia estabilizada com ítria como eletrólito.
L. A. Villas-Bôas, D. P. F. de Souza
doaj   +1 more source

Surface Acidity Engineering: From Fundamental Insights to Universal Design Rules for Electrocatalytically and Electrically Active Oxides

Advanced Energy Materials, Volume 16, Issue 31, 19 August 2026.
This comprehensive review highlights surface acidity engineering as a versatile strategy to modulate surface charge and boost catalytic performance in functional oxides. It explores recent advances in practical implementation, structural reconstruction approaches, and mechanistic origins from diverse complementary viewpoints.
Gyu Rac Lee, Harry L. Tuller
wiley   +1 more source

Moagem de pós de carbeto de silício em moinho planetário Planetary milling of silicon carbide powders

Cerâmica, 2005
Pó de alfa carbeto de silício (alfa-SiC) foi cominuído em moinho planetário durante os períodos de tempo de ½, 2, 4 e 6 h. A velocidade de rotação foi de 300 rpm, o meio de moagem foi álcool isopropílico e os corpos moedores foram esferas de ...
M. A. P. dos Santos, C. A. Costa
doaj   +1 more source

Electrocatalytic Oxidative Dehydrogenation of Ethane on Perovskite Oxides: Effect of B‐Site Transition Metal

ChemCatChem, Volume 18, Issue 16, 27 August 2026.
Electrocatalytic oxidative dehydrogenation of ethane: LSM, LSF, and LSCF were compared to reveal how the nature of oxygen species affects ODHE performance. Nucleophilic O2− on LSM enables efficient oxygen utilization, selectively forming C2H4 with high yield.
Jaesung Kim, Serra Yesilata, Anne C. Co, Seval Gunduz, Umit S. Ozkan   +4 more
wiley   +1 more source

Compositional and Fabrication Cycle Optimization of Ceria-Zirconia-Supported Mo-Based Catalysts for NH₃-SCR NO_x Reduction

Inorganics
The reduction of nitrogen oxides (NOx), critical pollutants from stationary to mobile sources, mainly relies on the selective catalytic reduction (NH3-SCR) method, employing ammonia to reduce NOx into nitrogen and water.
Luca Spiridigliozzi, Viviana Monfreda, Serena Esposito, Olimpia Tammaro, Nicola Blangetti, Fabio Alessandro Deorsola, Gianfranco Dell’Agli   +6 more
doaj   +1 more source

Quasi‐In Situ 4D‐STEM Mapping of Exsolution Driven Parent Matrix Restructuring in Sr2FeMoO6‐δ

Small Methods, Volume 10, Issue 16, 25 August 2026.
How does catalytic exsolution alter its parent matrix in realistic solid oxide cells? A beam‐artifact‐free, quasi‐in situ 4D‐STEM methodology maps intrinsic nanoscale transformations in bulk Sr2FeMoO6‐δ electrodes. Correlative identical‐location imaging reveals that surface exsolution inherently couples with profound crystallographic reorganization and
Pritam K. Chakraborty, Junbeom Park, Stephanie E. Wolf, Vaibhav Vibhu, Hongyu Sun, H. Hugo Pérez Garza, Shibabrata Basak, Rüdiger‐A. Eichel   +7 more
wiley   +1 more source

Investigation of the Nickel‐Ceria Synergy for Efficient CO2 Methanation Under Nonthermal Plasma Activation

ChemCatChem, Volume 18, Issue 14, 29 July 2026.
Nickel‐ceria based catalysts displayed high performances for the methanation reaction achieving both high selectivity and conversion under non‐thermal plasma. These performances arose from the formation of the Ce1‐xNixO2‐γ solid solution promoted by the use of sol‐gel based synthesis and was investigated by XPS, TEM, TPR and raman.
Nathan Cordier(s), Christine Canaff, Nadia Guignard, Anthony Le Valant, Catherine Batiot‐Dupeyrat, Elodie Fourré   +5 more
wiley   +1 more source

Impact Resistance of Yttria- and Ceria-Doped Zirconia Ceramics in Relation to Their Tetragonal-to-Monoclinic Transformation Ability

Ceramics
In this work, the impact resistance of three zirconia ceramics was investigated: two yttria-stabilized zirconia (3Y-TZP and 1.5Y-TZP) and a ceria-stabilized-zirconia (Ce-TZP) composite.
Mohamed Imariouane, Malika Saâdaoui, Norberto Labrador, Helen Reveron, Jérôme Chevalier   +4 more
doaj   +1 more source