Results 61 to 70 of about 76,165 (236)

Hydrothermal Embedding of Pd Single Atoms Into SnO2 for Efficient CO Oxidation

open access: yesAdvanced Science, EarlyView.
By applying hydrothermal regulation to SnO2‐supported PdO, we achieve atomic dispersion of Pd into the SnO2 lattice, which activates the lattice oxygen neighboring Pd atoms to generate oxygen vacancies and facilitates subsequent O2 activation, thereby promoting CO oxidation to proceed via a low‐energy‐barrier MvK pathway while avoiding CO poisoning ...
Yingsheng An   +12 more
wiley   +1 more source

Hydrothermal Synthesis: Low−Temperature Subcritical Water for Ceria−Zirconia Mixed Oxides Preparation

open access: yesIndonesian Journal of Chemistry, 2021
A low-temperature hydrothermal synthesis technique was employed as a medium to produce ceria−zirconia mixed oxides particles at temperatures of 200–300 °C and pressure of 10 MPa in a batch process.
Siti Machmudah   +5 more
doaj   +1 more source

First-principles study of the energetics of charge and cation mixing in U_{1-x} Ce_x O_2

open access: yes, 2010
The formalism of electronic density-functional-theory, with Hubbard-U corrections (DFT+U), is employed in a computational study of the energetics of U_{1-x} Ce_x O_2 mixtures.
B. E. Hanken   +5 more
core   +1 more source

Ultrasound- and microwave-assisted preparation of lead-free palladium catalysts: effects on the kinetics of diphenylacetylene semi-hydrogenation [PDF]

open access: yes, 2015
The effect of environmentally benign enabling technologies such as ultrasound and microwaves on the preparation of the lead-free Pd catalyst has been studied.
Bonrath, Werner   +6 more
core   +1 more source

Highly selective adsorption of curcuminoids by ceria and hydrated ceria

open access: yesFood Chemistry Advances, 2023
In order to better develop and utilize curcuminoids, a method with high selectivity and simple and rapid separation and enrichment of curcuminoids from turmeric should be established. In this study, hydrated ceria and ceria were first prepared, and then curcumin was used as a model compound to investigate the adsorption and separation performance of ...
Ying Wang   +8 more
openaire   +2 more sources

Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells

open access: yesAdvanced Energy Materials, EarlyView.
Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu   +4 more
wiley   +1 more source

Dynamic control and quantification of active sites on ceria for CO activation and hydrogenation

open access: yesNature Communications
Ceria (CeO2) is a widely used oxide catalyst, yet the nature of its active sites remains elusive. This study combines model and powder catalyst studies to elucidate the structure-activity relationships in ceria-catalyzed CO activation and hydrogenation ...
Weipeng Shao   +15 more
doaj   +1 more source

Application of Neural Networks for Advanced Ir Spectroscopy Characterization of Ceria Catalysts Surfaces

open access: yesAdvanced Intelligent Discovery, EarlyView.
A novel convolutional neural network architecture enables rapid, unsupervised analysis of IR spectroscopic data from DRIFTS and IRRAS. By combining synthetic data generation with parallel convolutional layers and advanced regularization, the model accurately resolves spectral features of adsorbed CO, offering real‐time insights into ceria surface ...
Mehrdad Jalali   +5 more
wiley   +1 more source

Template-assisted formation of microsized nanocrystalline CeO2 tubes and their catalytic performance in the carboxylation of methanol

open access: yesBeilstein Journal of Nanotechnology, 2011
Polymethylmethacrylate (PMMA)/ceria composite fibres were synthesized by using a sequential combination of polymer electrospinning, spray-coating with a sol, and a final calcination step to yield microstructured ceria tubes, which are composed of ...
Jörg J. Schneider   +5 more
doaj   +1 more source

Pollution prevention via recovery of cerium (IV) oxide in optics company

open access: yesCase Studies in Chemical and Environmental Engineering, 2020
Pollution prevention methods were applied at an optics manufacturer in an effort to improve recovery of a valuable polishing component, cerium oxide (ceria), 77% of which was lost to dragout and sewer discharge.
Eugene Park   +3 more
doaj   +1 more source

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