The magnetic properties attributed to the hydroxide layer of Li1−xFex(OH)Fe1−ySe have been elucidated by the study of superconducting and non-superconducting members of this family of compounds. Both a.c. magnetometry and muon spin relaxation measurements of non-superconductors find a magnetic state existing below ≈ 10 K which exhibits slow relaxation of magnetisation. This magnetic state is ac...

ABSTRACT Response surface methodology was employed to optimize the adsorption parameters of Amaranth onto magnetic layer double hydroxide (Fe3O4/ZnFe-LDH). Such optimization was undertaken to ensure a high efficiency over the experimental ranges employed, and to evaluate the interactive effects of the initial concentration of Amaranth, pH, adsorbent dosage, temperature and contact time on...

We show that carbon nanotubes (CNTs) accelerate the wet etching of silicon dioxide in a strong alkaline solution. This catalytic effect is due to the spontaneous adsorption of hydroxide on the surface of the CNTs. Such adsorption creates an electrical double layer around the CNTs within which the concentration of hydroxide is higher than the bulk value. Our result suggests that the electrical d...

Ordered ultrathin films of tris(1,10-phenanthroline-4,7-diphenylsulfonate)ruthenium(ii) anions and cationic layered double hydroxide monolayers have been fabricated by the layer-by-layer assembly technique and show well-defined polarized red luminescence.

Transparent heterogeneous ultrathin films of exfoliated layered double hydroxide (LDHs) nanosheets, fabricated alternately with polyanion, have been obtained via a layer-by-layer electrostatic self-assembly which yields a series of novel LDH films with potential multifunctionality.

External magnetic fields affect various electrochemical processes and can be used to enhance the efficiency of water splitting reaction. However, driving forces behind this effect are poorly understood due analytical challenges available interface-sensitive techniques. Here, we present a set-up based on magneto- electro-optical probing, which allows juxtapose properties electrode with current d...

The structure, synthesis and magnetic properties of three new complex cobalt hydroxyl oxalates are presented, showing a modification of the 2-D double layer hydroxide structure. Co(12)(OH)(18)(ox)(3)(pip) [ox = oxalate, C(2)O(4)(2-); pip = piperazine, C(4)N(2)H(10)] (1), is essentially built from brucite-like layers with a one ninth depletion of the octahedral sites and a preservation of a trig...

Hydrophobic layered double hydroxide particles with a single layer structure have been successfully synthesised in a reverse microemulsion system; atomic force microscopy has proven a powerful tool for the study of these delicate nanoparticles.

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