Layered double hydroxides (LDHs)
Síntese e caracterização de hidróxidos duplos a partir da lama vermelha (Synthesis and characterization of layered double hydroxides from red mud)
... surfaces. Layered double hydroxides (LDHs) have been investigated for many years as host materials for a range of anion exchange intercalation ...
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Sol-gel synthesis and characterization of non-substituted and europium- substituted layered double hydroxides Mg3/Al1-xEux
... Layered double hydroxides (LDHs) are compounds com- posed of positively charged brucite-like layers with an inter- layer gallery containing charged compensating anions and water ...
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Layered Double Hydroxides as Hosting Matrices for Storage and Slow Release of Phosphate Analyzed by Stirred-Flow Method
... characterize Layered Double Hydroxides (MgAl- LDHs, MgFe-LDHs, and MgAlFe-LDHs) containing phosphate anions and study P release kinetics was conducted with the prepared ...
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How density functional theory surface energies may explain the morphology of particles, nanosheets, and conversion films based on layered double hydroxides
... 28 In this work, we explore the structural features that are 29 responsible for the morphology of conversion films based on 30 layered double hydroxides (LDHs) grown on an aluminum 31 substrate. LDH ...
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A comparative study of co-precipitation and sol-gel synthetic approaches to fabricate cerium-substituted Mg Al layered double hydroxides with luminescence properties
... · The Mg/Al/Ce layered double hydroxides (LDHs) synthesised using co-precipitation and sol-gel preparation technique. · The rehydration of sol-gel derived LDH does not [r] ...
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Luminescent polyoxotungstoeuropate anion-pillared layered double hydroxides
... anion-pillared layered double hydroxides (LDHs) were prepared by aqueous ion ex- change of a Zn–Al LDH precursor in nitrate form with the europium-containing polyoxotungstate anions [EuW 10 O 36 ] 9– ...
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Magnetic phenomena in co-containing layered double hydroxides
... Magnetic behavior of Co II (n)Al III layered double hydroxides (LDHs) (n ¼ Co/Al ¼ 2 and 3) interca- lated with nitrate was studied as a function of temperature. Both LDH compounds are paramagnetic ...
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Cast iron corrosion protection with chemically modified Mg Al layered double hydroxides synthesized using a novel approach
... Layered double hydroxides (LDHs) are composed of positively-charged mixed metal M II -M III hydroxide layers with charge-compensating anions A y- and water molecules intercalated between layers ...
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Silica-Based Nanocoating Doped by Layered Double Hydroxides to Enchance the Paperboard Barrier Properties
... Zn-Al layered double hydroxides intercalated with nitrates(Zn(2)-Al-NO 3 LDHs) were synthesized by the co- precipitation method [30] using decarbonized (boiled and cooled under a flow of nitrogen ...
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Catalytic application of layered double hydroxides and fluoroperovskites in glycerol oligomerization
... study, layered double hydroxides (LDHs) and fluoroperovskites, both containing Mg/Al, Zn/Al and Co/Al were obtained by coprecipitation and used as catalysts in glycerol ...
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Layered double hydroxides produced from blast furnace slag.
... LAYERED DOUBLE HYDROXIDES PRODUCED FROM BLAST FURNACE SLAG. Hydrotalcite like compounds (HT) were prepared by co-precipitation (Mg/Al = 3.5), using an acid solution with blast furnace slag and MgCl 2 ...
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High-power ultrasonic synthesis and magnetic-field-assisted arrangement of nanosized crystallites of cobalt-containing layered double hydroxideu
... The layered double hydroxides, in which at least one of the metal cations is magnetic: Сo 2+ , Ni 2+ , Mn 3+ , Cr 3+ or Fe 3+ , were studied ...of layered double hydroxides in ...
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Deliy system for mefenamic acid based on the nanocarrier layered double hydroxide : and evaluation of antiinflammatory and potential
... into layered inorganic nanoparticles can provide sustained release minimizing the usual side effects ...life. Layered double hydroxides (LDHs), also known as hydrotalcite like-compounds, are ...
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Bi-substituted Mg3Al–CO3 layered double hydroxides
... Abstract Magnesium–aluminium–bismuth-layered dou- ble hydroxides (LDH) intercalated with carbonate were studied in respect of maximal rate of substitution of Al 3+ by Bi 3+ for the first time. LDH with the ...
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Layered double hydroxide (LDH)-based conversion films for the corrosion protection of aluminum alloys for aerospace applications
... The impact of corrosion, a naturally-occurring process usually affecting metallic structures, can be witnessed on a daily basis since metal alloys are nearly everywhere. Due to their unique combination of mechanical ...
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Utilização de hidróxidos duplos lamelares para a remoção do contaminante emergente diclofenaco / Use of layered double hydroxides for the removal of the emerging pollutant diclofenac
... Lamellar Double Hydroxides (HDL) are easy to obtain associated to the low cost relative to several other materials, high surface area and stability in several media, being promising in the application as ...
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Layered double hydroxides: structure, synthesis, properties and applications.
... Estes materiais podem servir ainda como suporte para catalisadores, de duas formas diferen- tes: (i) o catalisador, na forma aniônica, pode ser adsorvido na superfície do material ou (ii[r] ...
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OXIDATION OF CYCLOHEXANOL ON PHOSPHOTUNGSTIC ACID ANION INTERCALATED LAYERED DOUBLE HYDROXIDES WITH AQUEOUS H2
... diffraction peak and a low intensity peak, is indicated as (003). This mixture includes POM-intercalated LDH and the POM-immobilized LDH (POM anions immobilized on the external surface of LDH layers). Besides, the ...
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Layered double hydroxides: inorganic nanoparticles for storage and release of species of biological and therapeutic interest.
... Diferentemente dos resultados obtidos para HDL intercalados com aminoácidos, para o HDL de Mg e Al intercalado com ânions citrato, o valor de espaçamento basal encontrado após os teste[r] ...
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18H2 O – A natural layered double hydroxide
... a sulphate based mineral [12] and is one of the hydrotalcite super- group of natural layered double hydroxides [7]. According to Raade et al., the structure is hexagonal and is related to a ...
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