Materials Literature
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A facile approach for the synthesis of uniform, small size and well-dispersed rhodium nanoparticles (RhNPs) on cross-linked polyvinyl alcohol–polyethyleneimine (PVA–PEI) nanofibers has been demonstrated. Various methods were firstly employed to cross-link PVA nanofibers and the cross-linked PVA–PEI nanofibers exhibite…
In this paper, we report a careful study of the properties and mechanisms of a 2LiBH4–MgH2 composite with a niobium oxide (Nb2O5) additive. It was found that directly milling with a small amount of the Nb2O5 additive exerted a negligible effect on the dehydrogenation kinetics of the 2LiBH4–MgH2 composite in the first…
The orientational distribution of cellulose nanocrystals (CNCs) in a cellulose whisker (CW) was investigated by means of the X-ray diffraction of magnetically oriented samples of CWs. A cellulose sample (Whatman CF11) was hydrolyzed and fractionated to prepare three different CW samples with a size ranging from ca. 10…
Within the many contributions in relation to the preparation and applications of graphene, this article tries to offer a new perspective on the efforts toward the exploration of alternative routes that could make possible the chemical production of graphenes in a green context. In this way, it is discussed how the use…
Stress and strain transformation plane elasticity theory structures with symmetry bending of beams and plates theories of torsion moment distribution flexural shear flow energy methods instability of columns and plates finite elements yield and strength criteria plasticity and collapse creep and visco-elasticity high…
In this report, we have investigated the effect of antisite ordering on the magnetic behavior of NixZn1-xFe2O4 nanoparticles for x = 0, 0.25, 0.5, 0.75, and 1. Observed magnetization versus temperature data show systematic gradual changes from antiferromagnetic to ferrimagnetic phase with increasing amount of Ni conce…
Two new organic hybrid materials [H4V10O28][CuCl(H2O)2(1,10-phenanthroline)]2·4H2O (V10O28-CuCl-phen) and [H4V10O28][Cu(H2O)3(1,10-phenanthroline)]2·4H2O (V10O28-CuO-phen) were synthesized at room temperature. The effect of the presence and absence of AlCl3 on the single crystal growth of the two compounds was studied…
We report a simple and one-pot size- and shape-controlled synthesis of small crystalline ZnO nanostructures through the hydrolysis of zinc acetylacetonate precursor using an ionic liquid, tetrabutylphosphonium hydroxide in different organic solvents and solvent mixtures of different polarities. Transmission electron m…
Fabrication of light-driven actuators that can prolong their deformation without constant irradiation poses a challenge. This study shows the preparation of polymeric actuators that are capable of reversible bending/unbending movements and prolonging their bending deformation without UV irradiation by releasing therma…
Graphene double quantum dots (DQDs) open to use charge or spin degrees of freedom for storing and manipulating quantum information in this new electronic material. However, impurities and edge disorders in etched graphene nano-structures hinder the ability to control the inter-dot tunnel coupling, tC, the most importa…
Three novel cationic hexametallic Mn(III) compounds of formulae [Mn6(μ3-O)2(H2N-sao)6(py)6(EtOH)2](ClO4)2·4EtOH (1), [Mn6(μ3-O)2(H2N-sao)6(tpy)6(H2O)2](ClO4)2·2tpy·4H2O·2EtOH (2) and [Mn6(μ3-O)2(H2N-sao)6(Him)6(EtOH)2](ClO4)2·6EtOH (3) [H2N-saoH2 = salicylamidoxime, py = pyridine, tpy = 4-tert-butylpyridine and Him =…
First-principles calculations were employed to explore the electronic properties of SnSe nanoribbons. Our results showed that a semiconductor–metal or metal–semiconductor transition can be realized in SnSe nanoribbons by controlling the edge shape, width parameter and different levels of strain. It was found that the…
The targeted replacement of acetate groups in the optically inactive [Mn(III)3O(O2CMe)3(mpko)3](ClO4) single-molecule magnet with their naphthalene, anthracene, and pyrene fluorescent analogues has led to three new emissive SMMs with enhanced photoluminescence properties and potential applications in the field of mole…
We study the effect of Al doping on thermoelectric power factor of ZnO films grown using atomic layer deposition method. The overall doping level is tuned by either varying the precursor pulsing sequence or by varying the number of precursor pulses while keeping the sequence unchanged. We observe that commonly utilize…
Abstract Recently, a new family of piezoelectric perovskite materials, PbHfO 3 ‐PbTiO 3 ‐Pb(Mg 1/3 Nb 2/3 )O 3 (PHT‐PMN) ternary system was developed, possessing good piezoelectric properties and high Curie temperature near the morphotropic phase boundary (MPB). Nb 2 O 5 , as a donor dopant in the perovskite piezoelec…
Europium (Eu):Y 2 O 3 -nanoparticles/Mg:ZnO-nanowires/ p -GaN and (Eu):chelate-based light-emitting diode (LED) structures have been fabricated, showing controlled mixed near-UV, violet, and red electroluminescence from trivalent europium. The magnesium (Mg)-doped ZnO (Mg:ZnO)-nanowires/ p -GaN heterojunction were int…
Perovskite NdGaO3 (NGO) films, 2–20 unit cells in thickness, have been deposited epitaxially on {001} TiO2-terminated SrTiO3 substrates at different O2 pressures. The {001} NdGaO3/SrTiO3 (STO) interface becomes metallic as the NdGaO3 overlayer is more than 4 unit cells in thickness. The sheet carrier density is above…
The orientation dependence of current-perpendicular-to-plane giant-magnetoresistance (CPP-GMR) was investigated by fabricating ⟨001⟩ textured polycrystalline pseudo spin valves (PSVs) with Co2Fe(Ga0.5Ge0.5) (CFGG) Heusler alloy ferromagnetic layers and a Ag spacer. The PSV with 10 nm CFGG annealed at 400 °C exhibited…
Layering is found and exploited in a variety of soft material systems, ranging from complex macromolecular self-assemblies to block copolymer and small-molecule liquid crystals. Because the control of layer structure is required for applications and characterization, and because defects reveal key features of the symm…
An approach has been proposed for the description of the dispersion transition of a nonwetting liquid in confinement. This approach describes intrusion and extrusion processes for the ground state of a disordered porous medium, which is characterized by the formation of a fractal percolation cluster. The observed tran…