Results 81 to 90 of about 96,778 (262)

Early exposure to titanium dioxide nanoparticles caused a decrease in the cytoplasmic catalase activity, inducing lipid peroxidation in the Saccharomyces cerevisae. [PDF]

open access: yes, 2015
The massive production of nanomaterials has created new pollutants whose interaction with living organisms is unclear. Recent studies have revealed that these materials generate reactive oxygen species, causing cell damage, when antioxidant systems fail,
Alves-Pereira, I   +2 more
core   +1 more source

Ceria‐Zirconia Supported Gold Nanoparticles for CO and Soot Oxidation

open access: yesChemCatChem, Volume 18, Issue 9, 14 May 2026.
ABSTRACT This study introduces a gold nanoparticles catalyst (AuNPs) supported on ceria‐zirconia oxide, prepared by deposition‐precipitation (Au/CZ‐dep) and chemical reduction (Au/CZ‐red). The as‐prepared catalysts were tested in CO oxidation by O2 and soot oxidation under different oxidizing atmospheres (O2, NO2+NO+O2).
Ayoub Akef   +5 more
wiley   +1 more source

Midnight-sun-induced natural gas conversion [PDF]

open access: yes, 2018
The 11th NGCS meeting took place between 5th and 9th of June 2016, and was hosted in Tromsø/Norway. The latest developments from academic and industrial perspectives were discussed and presented in (1) Production of Synthesis Gas, (2) Synthesis Gas to ...
Armstrong, Robert   +3 more
core   +2 more sources

Hole Polaronic Confinement in (111) Yttria‐Stabilised Zirconia

open access: yesSmall, Volume 22, Issue 25, 4 May 2026.
Ultrathin epitaxial YSZ(111) films unexpectedly develop p‐type mixed conduction and amplified electromechanical coupling under oxidizing conditions. Combined transport measurements and first‐principles modeling reveal that nanoscale confinement and ordered dopant–vacancy complexes stabilize localized O 2p hole polarons at the surface. A canonical ionic
Milica Vasiljevic   +15 more
wiley   +1 more source

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

open access: yesAPL 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   +7 more
doaj   +1 more source

Methodology for the effective stabilization of tin-oxide-based oxidation/reduction catalysts [PDF]

open access: yes, 2011
The invention described herein involves a novel approach to the production of oxidation/reduction catalytic systems. The present invention serves to stabilize the tin oxide reducible metal-oxide coating by co-incorporating at least another metal-oxide ...
Davis, Patricia P.   +8 more
core   +1 more source

A general method for the synthesis of nanostructured large-surface-area materials through the self-assembly of functionalized nanoparticles [PDF]

open access: yes, 2005
A general synthetic method for the preparation of nanostructured materials with large surface area was developed by using nanoparticle building blocks. The preparation route involves the self-assembly of functionalized nanoparticles in a liquid-crystal ...
Antonelli   +23 more
core   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, Volume 28, Issue 8, 22 April 2026.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

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

open access: yesCrystals
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   +8 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

open access: yesCerâmica, 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

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