Results 61 to 70 of about 110,244 (302)

Separation of Aluminum Chloride from White Kaolinite by Slime Leaching Process [PDF]

open access: yesEngineering and Technology Journal, 2014
White kaolinite materials are available raw materials in the western desert in Iraq which exist in Al-Amige region within sediments near the surface.
Sami Abualnoun Ajeel   +2 more
doaj   +1 more source

Effects of calcination temperatures on structural, functional, morphological, and magnetic properties of strontium ferrite (SrFe2O4) nanoparticles

open access: yesKuwait Journal of Science, 2023
In this proposed work, the strontium ferrite (SrFe2O4) nanoparticles were successfully synthesized in the presence of strontium nitrate (Sr (NO3)2) and ferric nitrate (Fe (NO3).9H2O) as primary sources by using chemical co-precipitation method.
T. Sivanandan, Sigamani Saravanan
doaj   +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

Natural Bone‐Derived Ceramic Scaffolds Functionalized with Chitosan‐Gold, Chitosan‐Magnesium, and Chitosan‐Zinc for Enhanced Antibacterial Activity

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports the development of antibacterial ceramic scaffolds derived from natural bovine bone. The bones were processed through sequential boiling and hydrogen peroxide treatment to remove organic matter, producing porous, mineral‐rich scaffolds.
Mohamad Hassan Taherian   +6 more
wiley   +1 more source

Iron-stabilized nanocrystalline ZrO2 solid solutions: Synthesis by combustion and thermal stability [PDF]

open access: yes, 2009
The synthesis of Fe3+-stabilized zirconia by the nitrate/urea combustion route was investigated. Using several characterization techniques, including X-ray diffraction, field-emission-gun scanning electron microscopy and notably Mo¨ ssbauer spectroscopy,
Barnabé, Antoine   +5 more
core   +2 more sources

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

open access: yesAdvanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu   +5 more
wiley   +1 more source

Obtaining a hematite pigment by thermal transformation of the surface oxide of reinforcing steel bars

open access: yesRevista UIS Ingenierías, 2020
In this investigation work, the valuation of the surface oxide waste from reinforcing steel bars through to its thermal transformation into a pigment composed mainly of hematite (ɑ-Fe2O3) is reported.
María Angélica Colpas-Ruiz   +4 more
doaj  

Preparation of (Pb,Ba)TiO3 powders and highly oriented thin films by a sol-gel process [PDF]

open access: yes, 2003
Solid solution Pb1-xBaxTiO3, with particular emphasis on Pb0.5Ba0.5TiO3, was prepared using a sol-gel process incorporating lead acetate trihydrate, barium acetate, and titanium isopropoxide as precursors, acetylacetone (2,4 pentanedione) as a chelating ...
Boland, Stacey W.   +3 more
core   +3 more sources

Electroactive Metal–Organic Frameworks for Electrocatalysis

open access: yesAdvanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska   +7 more
wiley   +1 more source

Auto‐Generated Valence States in Electrocatalysts for Boosting Oxygen and Hydrogen Evolution Kinetics in Alkaline Water/Alkaline Seawater/Simulated Seawater/Natural Seawater

open access: yesAdvanced Functional Materials, EarlyView.
This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari   +4 more
wiley   +1 more source

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