Results 61 to 70 of about 1,899,134 (303)

TOPICAL REVIEW Chemistry of layered d-metal pnictide oxides and their potential as candidates for new superconductors

open access: yesScience and Technology of Advanced Materials, 2008
Layered d-metal pnictide oxides are a unique class of compounds which consist of characteristic d-metal pnictide layers and metal oxide layers. More than 100 of these layered compounds, including the recently discovered Fe-based superconducting pnictide ...
Tadashi C Ozawa et al
doaj  

Imprinted Oxide and MIP/Oxide Hybrid Nanomaterials for Chemical Sensors †

open access: yesNanomaterials, 2018
The oxides of transition, post-transition and rare-earth metals have a long history of robust and fast responsive recognition elements for electronic, optical, and gravimetric devices.
Adeel Afzal, Franz L. Dickert
doaj   +1 more source

Precursor engineering of hydrotalcite-derived redox sorbents for reversible and stable thermochemical oxygen storage

open access: yesNature Communications, 2022
Thermochemical redox reactions of metal oxides are promising for CO2 capture, gas purification, air separation, and energy storage. Here, the authors report mixed metal oxides derived from layered double hydroxides precursors, and demonstrate their ...
Michael High   +14 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Slurry-phase desulphurization of tyre derived oil using unsupported and supported alkaline earth metal oxides

open access: yesSouth African Journal of Chemical Engineering
The aim of this study was to synthesize, characterize and test supported alkaline earth metal oxides for desulphurization of tyre-derived oils. The primary benefit of employing a metal oxide dispersed on a high surface area support is the potential for ...
Sagar Ramdeo, Milan Carsky, David Lokhat
doaj   +1 more source

Modifying of mechanical properties in the deposited metal prepared by welding wire containing nanosized oxide particles

open access: yesMaterials Research Express, 2021
Fine oxide particles can play a role in refining grains and promoting nucleation in steel. In this research, a solid welding wire containing nanosized oxides was obtained by preparing a ‘master alloy’.
Haitao Xue   +5 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar   +2 more
wiley   +1 more source

STUDY ON EFFECT OF pH AND METAL CONCENTRATION ON THE SYNTHESIS OF DIMENSIONALLY STABLE ANODE GAPHITE/La2O3-ZrO2 AND GAPHITE/RuO2-TiO2

open access: yesIndonesian Journal of Chemistry, 2010
The objective of this research is to study the effect of pH and metal concentration toward the mass of metal oxides coated on gaphite in the synthesis of dimensionally stable anode (DSA) gaphite/La2O3-ZrO2 and gaphite/RuO2-TiO2.
Suyanta Suyanta, Agus Kuncaka
doaj   +1 more source

Encoding Metal-Cation Arrangements in Metal-Organic Frameworks for Programming the Composition of Electrocatalytically Active Multi-Metal Oxides [PDF]

open access: yes, 2018
In the present contribution, we report how through the use of metal-organic frameworks (MOFs) composed of addressable combinations of up to four different metal elements it is possible to program the composition of multi-metal oxides, which are not ...
Inés, Puente-Orench   +7 more
core   +2 more sources

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

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