Materials Literature
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The reduction of a 1.3% Rh/TiO2 sample with carbon monoxide leads to the formation of uniform Rh nanoparticles with a mean diameter of dp ≈ 2.2 nm. Adsorption of CO on the reduced Rh/TiO2 produces linear and bridged carbonyls bound to metallic Rh(0) sites and only a few geminal dicarbonyls of Rh(I). The ν(CO) of linea…
Graphene is one of the carbon allotropes which is a single atom thin layer with sp 2 hybridized and two‐dimensional (2D) honeycomb structure of carbon. As an outstanding material exhibiting unique mechanical, electrical, and chemical characteristics including high strength, high conductivity, and high surface area, gr…
Polycrystalline ZnO thin films are prepared by the co-sputtering method under different oxygen partial pressures. Films deposited in pure argon gas exhibit ferromagnetism, whereas other films deposited under different oxygen partial pressures are diamagnetism. XPS results show the presence of Zn interstitial and oxyge…
The interface potential approach is used to compute interfacial properties of a model system consisting of water at a structureless non-polar surface. Both spreading and drying versions of the method, in which one focuses on the growth of a thin liquid and vapor film from the surface, respectively, are employed. We ex…
We have studied how carboxylic modified latex (CML) microparticles adsorb at liquid surfaces and the preferred type of emulsion they can stabilise depending on the particle size and the surface density of carboxylic groups. We measured the particle contact angle by using the gel trapping technique (GTT) for CML partic…
The hybrid ternary composites with low dielectric constant and high thermal stability were fabricated through composition optimization by introducing suitable amounts of inorganic silica and hyperbranched polyimide into a linear polyimide system.
High-quality Zn(1-x)Cd(x)S, coaxial Zn(0.99-x)Cd(x)Cu(0.01)S/ZnS and Zn(0.99-x)Cd(x)Mn(0.01)S nanorods (NRs) were synthesized through a one-step hydrothermal method. The composition of the alloyed NRs was adjusted by controlling the Zn/Cd molar ratios. The results showed that all of the samples had a good crystallinit…
Complex multi-redox-active organic semiconductors have been made incorporating tetrathiafulvalene as a fused bridge between oligothiophene chains.
We study the laws determining the mechanical behavior of materials at the postcritical deformation stage. Proportional tension-torsion tests of thin-walled tubular specimens of structural steels were carried out for various deformation trajectories to obtain experimental data about the work softening of steels under p…
The first quadrupolar 8-dimethylaminoquinoline-derived 6-(8-DMAQ-OAc)2 (1c) and 5-(8-DMAQ-OAc)2 (2c) photosensitive probes underwent photolysis under UV (365 nm) and NIR (730 nm two-photon (TP)) irradiation conditions, showing Qu = 9.3% and 6.6% quantum yields and δu = 0.07 GM and 0.40 GM uncaging cross-sections, resp…
Ca <sub>2</sub> PO <sub>4</sub> Cl:Ce <sup>3+</sup> , Eu <sup>2+</sup> can produce the intense blue emission under the n-UV excitation, and have the excellent thermal stability. Based on the results, we are currently evaluating the potential application of Ca <sub>2</sub> PO <sub>4</sub> Cl:Ce <sup>3+</sup> , Eu <sup>…
In this work, we present novel fullerene (C60) end-capped rod-like polypeptide-polymers, obtained by one-pot thiol-ene chemistry. These systems are able to self-assemble in water creating precise bulky microstructures of toroidal or vesicular shapes. Independent molecular dynamics simulations supported the observed ex…
Two new coordination polymers of Mn( <sc>iii</sc> )-tetra(iodophenyl)porphyrin with isonicotinate and pyrimidine-5-carboxylate linkers have been synthesized. The effect of halogen-bonding interactions on their self-assembly in the crystalline bulk and on a graphite surface has been discussed.
Six lanthanide complexes based on 5-azotetrazolyl salicylic acid were synthesized and their crystal structures, magnetic and photochromic properties were reported.
Depending on the iron(ii) concentration, the mixed crystals of {[Zn1-xFex(bbtr)3](BF4)2}∞, bbtr = 1,4-di(1,2,3-triazol-1-yl)butane, 0.01 ≤ x ≤ 1, show macroscopic light-induced bistability between the high-spin and the low-spin state. In the highly diluted system with x = 0.01 and up to x = 0.31, the photoinduced low-…
A new pyridine-terminated fluorophore of ( E )-4-(2-(anthracen-9-yl)vinyl)pyridine (AnPy) with intramolecular charge transfer and aggregation-induced emission properties was synthesized and was blended with polytyrosine (PTyr) through hydrogen-bond interactions.
In order to obtain nonperipherally tetra terminal alkynyl substituted phthalocyanines (Pcs), new 3-pent-4-ynyloxy phthalonitrile (3) was prepared by the nucleophilic displacement reaction of 3-nitrophthalonitrile (1) and 4-pentyn-1-ol (2) and then cyclotetramerization was attained in the presence of zinc acetate, coba…
Pd–Pt alloy nanohypercubes were fabricated by reducing Pd and Pt precursors simultaneously with tetraethylene glycol in a one step process under microwave irradiation for only 100 s. Iodide ions were critical to their syntheses.
Abstract Herein, we have compared the behavior of ZnO and TiO2 in the photocatalytic oxidation of glycerol through detection of the main products. ZnO showed higher selectivity for the products where the carbon chain was preserved, such as glyceraldehyde (GAD) and dihydroxyacetone (DHA). TiO2 generated more products f…
Six new poly(trifluoromethyl)azulenes prepared in a single high-temperature reaction exhibit strong electron accepting properties in the gas phase and in solution and demonstrate the propensity to form regular π-stacked columns in donor-acceptor crystals when mixed with pyrene as a donor.