Special Issue: Layered Double Hydroxides (LDH) and LDH-Based Hybrid Composites

Matusik, Jakub

doi:10.3390/ma14102582

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…This can be explained by layered double hydroxide (LDH) synthesis via ammonia vapor diffusion impregnation [19][20][21]. When ammonia vapor is dissolved into the impregnated nickel-cerium nitrate solution on the support, a limited amount of hydroxide ions are produced, conducting the slow growth of the layered double hydroxide ([Ni 1−-x Ce x (OH) 2 ] z+ (NO 3 ) z •nH 2 O) throughout the diffusion time [22][23][24]. In this complex, metal ions are connected based on the inorganic layer as a multicomponent nanostructure.…”

Section: Physical Propertiesmentioning

confidence: 99%

Enhancement of Ni-NiO-CeO2 Interaction on Ni–CeO2/Al2O3-MgO Catalyst by Ammonia Vapor Diffusion Impregnation for CO2 Reforming of CH4

Tungkamani,

Intarasiri,

Sumarasingha

et al. 2024

Molecules

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Ni-based catalysts have been widely used for the CO2 reforming of methane (CRM) process, but deactivation is their main problem. This study created an alternative electronic Ni-NiO-CeO2 interaction on the surface of 5 wt% Ni-5 wt% CeO2/Al2O3-MgO (5Ni5Ce(xh)/MA) catalysts to enhance catalytic potential simultaneously with coke resistance for the CRM process. The Ni-NiO-CeO2 network was developed on Al2O3-MgO through layered double hydroxide synthesis via our ammonia vapor diffusion impregnation method. The physical properties of the fresh catalysts were analyzed employing FESEM, N2 physisorption, and XRD. The chemical properties on the catalyst surface were analyzed employing H2-TPR, XPS, H2-TPD, CO2-TPD, and O2-TPD. The CRM performances of reduced catalysts were evaluated at 600 °C under ambient pressure. Carbon deposits on spent catalysts were determined quantitatively and qualitatively by TPO, FESEM, and XRD. Compared to 5 wt% Ni-5 wt% CeO2/Al2O3-MgO prepared by the traditional impregnation method, the electronic interaction of the Ni-NiO-CeO2 network with the Al2O3-MgO support was constructed along the time of ammonia diffusion treatment. The electronic interaction in the Ni-NiO-CeO2 nanostructure of the treated catalyst develops surface hydroxyl sites with an efficient pathway of OH* and O* transfer that improves catalytic activities and coke oxidation.

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Section: Physical Propertiesmentioning

confidence: 99%

Enhancement of Ni-NiO-CeO2 Interaction on Ni–CeO2/Al2O3-MgO Catalyst by Ammonia Vapor Diffusion Impregnation for CO2 Reforming of CH4

Tungkamani,

Intarasiri,

Sumarasingha

et al. 2024

Molecules

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show abstract

“…The interlayer anions and water molecules are sandwiched between the two layers, and the interlayer anions are connected by noncovalent bonds. Part of the divalent metal cation M 2+ is replaced by the trivalent metal cation M 3+ , and the excess positive charge is neutralized by the interlayer anion, and the whole is electrically neutral [6].…”

Section: Properties Of Ldhsmentioning

confidence: 99%

Application Potential of Layered Double Hydroxides for The Treatment of Persistent Organic Pollutants

Feng,

Liu,

Zhi

2023

AJST

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Layered double hydroxides (LDHs) is a widely used emerging material. With its adjustable composition, other ions or materials can be incorporated on the surface or in the layer to synthesize modified materials with stronger ability to capture target pollutants. Persistent organic pollutants (POPs) exist in air, water and soil for a long time, which not only affect the ecosystem and ecological balance, but also endanger human health. Therefore, it is of great significance to study the application potential of LDHs in the treatment of POPs. The removal mechanism of persistent organic pollutants by LDHs includes adsorption and activated persulfate oxidation. The factors affecting the removal of POPs by LDHs include the characteristics of LDHs itself (including the inherent characteristics of composition, structure, morphology, etc.), coexisting substrates, temperature, etc.

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Production of 3′,5′-cyclic diadenosine monophosphate complex with Mg,Al-layered double hydroxide

Vinter,

Shchokolova,

Kazlouski

et al. 2024

Vescì Akademìì navuk Belarusì. Seryâ biâlagičnyh navuk

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The possibility of using Mg,Al-layered double hydroxide (LDH) for production of nanoparticles comprising molecules of pharmaceutically valuable 3′,5′-cyclic diadenosine monophosphate (cyclic di-AMP) was demonstrated. Experimental conditions were optimized to produce LDH complexes with cyclic di-AMP (average size of 300 nm), which loading capacity in regard to the target compound reached 60 mass %. The fact of cyclic di-AMP release from LDH complex in pH-dependent mode (proceeding slightly slower at pH 7.4 than at pH 4.5) was stated. The obtained results testify in favor of applying the studied nanocomplexes for delayed delivery of cyclic di-AMP to the target immune cells.

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Special Issue: Layered Double Hydroxides (LDH) and LDH-Based Hybrid Composites

Abstract: LDHs are a class of two-dimensional layered anionic structures with unique properties [...]

Cited by 3 publications

References 15 publications

Enhancement of Ni-NiO-CeO2 Interaction on Ni–CeO2/Al2O3-MgO Catalyst by Ammonia Vapor Diffusion Impregnation for CO2 Reforming of CH4

Enhancement of Ni-NiO-CeO2 Interaction on Ni–CeO2/Al2O3-MgO Catalyst by Ammonia Vapor Diffusion Impregnation for CO2 Reforming of CH4

Application Potential of Layered Double Hydroxides for The Treatment of Persistent Organic Pollutants

Production of 3′,5′-cyclic diadenosine monophosphate complex with Mg,Al-layered double hydroxide

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