Results 121 to 130 of about 76,165 (236)

Ceria‐Zirconia Supported Gold Nanoparticles for CO and Soot Oxidation

ChemCatChem, 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, Fatima Ammari, Nabila Zouaoui‐Mahzoul, Julie Schobing, Philippe Fioux, Valérie Tschamber   +5 more
wiley   +1 more source

Rational Design of Transition‐Metal Dual‐Atom Catalysts: Exploiting Neighboring Effects for Efficient CO2 Reduction

Carbon Neutralization, Volume 5, Issue 3, May 2026.
A dual‐atom catalyst with adjustable proximity effects is depicted, showing that variations in metal–metal interactions can modulate electronic structure, intermediate adsorption, and reaction pathways. These changes guide product selectivity in CO2 reduction and highlight design principles for efficient, tunable DAC systems.
Fanyong Yan, Bing Bai, Juanru Huang, Jinxia Xu, Yang Fu   +4 more
wiley   +1 more source

Catalytic Properties of Well-Defined Ceria and Ceria-Supported Vanadia

, 2022
Catalysts with well-defined surfaces are used to enhance the fundamental understanding of structure-function relationships which are hard to develop with polycrystalline materials whose surfaces are a complex mixture of various facets and defects. This dissertation reports the synthesis of ceria nanoshapes, (100) dominant cubes and (111) dominant ...
openaire   +2 more sources

Superionic Conduction Through Lattice Engineering of Fluorites Stabilizing Periodic Oxygen Vacancy Network

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
Lattice‐engineered fluorite oxide with periodic oxygen vacancy network achieves superionic conduction, Ce4+–Al3+ fluorite cation ordering enables dielectric‐enhanced superionic conduction, surpassing the limitations of conventional doped electrolytes and high fuel cell performance at low temperature through a flattened energy landscape.
Shahzad Rasool, Muhammad Faisal Anwar, Sarfraz, Nabeela Akbar, Wei Zhou, Shuo Wan, Rizwan Raza, Muhammad Afzal, Li Sun, Chenjie Lou, Mingxue Tang, Aristides D. Zdetsis, Hind Himayyid Aljaddani, Mohamed Elfleet, Peter D. Lund, Muhammad Imran Asghar, Yifu Jing, Qi Fan, Bin Zhu   +18 more
wiley   +1 more source

Exploring Perceived Utility of a Clinic‐Integrated HIV Prevention App for Men Who Have Sex With Men in Malaysia: A Qualitative Think‐Aloud Study

Health Science Reports, Volume 9, Issue 5, May 2026.
ABSTRACT Background and Aims HIV remains a global health concern, disproportionately affecting men who have sex with men (MSM). Discrimination, stigma, and other barriers in healthcare settings are common issues for MSM in Malaysia, resulting in sub‐optimal HIV testing and linkage to HIV prevention services.
Md. Safaet Hossain Sujan, Jeffrey A. Wickersham, Antoine Khati, Kamal Gautam, Kiran Paudel, Iskandar Azwa, Frederick L. Altice, Yee Kee Tan, Nursahira Sahiba Mohd Sabri, Michael M. Copenhaver, Roman Shrestha   +10 more
wiley   +1 more source

Hole Polaronic Confinement in (111) Yttria‐Stabilised Zirconia

Small, 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, Victor Buratto Tinti, Javier Zamudio‐García, José Maria Castillo Robles, Vasileios Bilalis, Imran Asghar, Simone Santucci, Yichen Wu, Simone Sanna, Carmela Aruta, Pasquale Orgiani, Dimitrios Koukoulis, David Marrero‐López, Weimin Wang, Ivano E. Castelli, Vincenzo Esposito   +15 more
wiley   +1 more source

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

Advanced 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

Nickel Nanoparticles Prepared via Colloidal Synthesis as CO2 Hydrogenation Catalysts on Various Support Materials

Advanced Synthesis &Catalysis, Volume 368, Issue 8, 15 April 2026.
Small aromatic ligands are used to synthesize Ni particles between 1 and 4.4 nm. After deposition on various supports, an alkylating agent and subsequent reduction procedure are used to remove the ligands. On SiO2, the Ni particles remained small, but on Al2O3 they sintered severely.
Bram T. Kappé, Metin Sen, Esther Groeneveld, Savannah Turner, Ward van der Stam, Matteo Monai, Bert M. Weckhuysen   +6 more
wiley   +1 more source

Mechanically activated ceria [PDF]

, 2004
The reduction of comercial and mechanically activatedCeO2 powder at 1200 °C in an argon atmosphere was examined by XRD. Mechanical activation of oxide powder was performed by milling in a vibratory mill for different lengths of time. During 30 min of milling it came to the greatest change in crystallite size, as well as of lattice distortion of CeO2 ...
Zec, Slavica, Bošković, Snežana B.
openaire  

In-situ TEM Study of Oxygen Surface Exchange on Ceria, Gd-doped Ceria and Pr-doped Ceria [PDF]

Microscopy and Microanalysis, 2021
Mai Tan, Peter Crozier, Joshua Vincent
openaire   +1 more source