Results 1 to 10 of about 147,079 (240)

A Non-Autonomous Amphoteric Metal Hydroxide Oscillations and Pattern Formation in Hydrogels [PDF]

open access: yesMolecules
Oscillations in animate and inanimate systems are ubiquitous phenomena driven by sophisticated chemical reaction networks. Non-autonomous chemical oscillators have been designed to mimic oscillatory behavior using programmable syringe pumps.
Norbert Német   +6 more
doaj   +2 more sources

The ability of layered double hydroxides for nitrate absorption and desorption in crop and fallow rotation [PDF]

open access: yesGlobal Journal of Environmental Science and Management, 2021
BACKGROUND AND OBJECTIVES: This study aims down to evaluate the ability of chloride magnesium- aluminium- layered double hydroxides (4:1) for nitrate adsorption from the soil solution in successive cropping periods.
M. Mohammadi   +3 more
doaj   +1 more source

Phase composition and local environment of iron ions in gadolinium-doped iron oxide nanoparticles

open access: yesЖурнал Белорусского государственного университета: Химия, 2022
FeO ⋅ Fe2O3 ⋅ nH2O, Fe2.95Gd0.05O4 and Fe2.9Gd0.1O4 powders were obtained by chemical precipitation from aqueous solutions. The phase composition and local environment of iron ions in gadolinium-doped iron oxide nanoparticles were studied by X-ray ...
Julia A. Fedotova   +6 more
doaj   +1 more source

Study of Various Fire Retardants on the Flammability of Polypropylene Materials

open access: yesVestnik of Vitebsk State Technological University, 2023
This article provides information about additives that are used to reduce the flammability of polymer compositions, in particular, flame retardants. At a certain degree of concentration of flame retardants in the material, the fire stops burning, due to ...
Alena L. Antonava   +2 more
doaj   +1 more source

Concrete-like till: A scientific and economic problem [PDF]

open access: yesBulletin of the Geological Society of Finland, 2000
In Finland, extremely compact and hard, concrete-like basal till, a type rare to the country, occurs in the district of Haukipudas on the coast of Northern Ostrobothnia. The cause of cementation is not its age but rather the composition of the underlying
J. Nenonen   +5 more
doaj   +1 more source

A Review of Cobalt-Based Metal Hydroxide Electrode for Applications in Supercapacitors

open access: yesAdvances in Materials Science and Engineering, 2023
Supercapacitors are the cutting-edge, high performing, and emerging energy storage devices in the future of energy storage technology. It delivers high energy and produces higher specific capacitances.
Sajid Naeem   +11 more
doaj   +1 more source

Role of the lattice-energy from chemical agents in the activation of highly-condensed carbons [PDF]

open access: yesJournal of the Serbian Chemical Society, 2021
Highly condensed carbons from pet-coke were first treated with Na/K hydroxides and carbonates and then with H2SO4. The esterification reaction of palmitic acid reached conversions of up to 97 % on the yielded activated carbons.
Espinoza Eumarielys M., Isernia Luis F.
doaj   +1 more source

Cinnamate-Intercalated Layered Yttrium Hydroxide: UV Light-Responsive Switchable Material

open access: yesMicromachines, 2023
In recent years, there has been an increasing interest in stimuli-responsive host–guest materials due to the high potential for their application in switchable devices.
Maria A. Teplonogova   +3 more
doaj   +1 more source

Novel Stimuli‐Responsive Turbostratic Oxides/Hydroxides for Material‐Driven Robots

open access: yesAdvanced Intelligent Systems, 2021
Herein, a novel class of high‐performing actuating oxides/hydroxides with turbostratic crystal structures is reviewed. These materials, including nickel hydroxide/oxyhydroxide, cobalt oxides/hydroxides, nickel‐doped cobalt oxides/hydroxides, and ...
Kin Wa Kwan   +3 more
doaj   +1 more source

Generation of hydrogen by hydroheterogeneous compositions based on aluminum and alkali metals [PDF]

open access: yesNuclear Energy and Technology, 2021
The process of hydrogen formation and the associated risk of combustion and explosion is a complex problem concerned with the hydrogen and radiation safety of nuclear reactors.
Sergey R. Askhadullin   +1 more
doaj   +3 more sources

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