Materials Literature
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1 H NMR dilution experiments were used to monitor self-association of acridine in solution in four different solvents. The pattern of complexation-induced changes in chemical shift is similar in chloroform, methanol, and carbon tetrachloride, which implies that the aggregate has a similar structure in these three solv…
Electron beam induced deposition of organometallic precursors has emerged as an effective and versatile method for creating two-dimensional and three-dimensional metal-containing nanostructures. However, to improve the properties and optimize the chemical composition of nanostructures deposited in this way, the electr…
In this paper, we studied the influence of the silver nanoparticles size on the electrical conductivity of PEDOT:PSS in Ag(PEDOT:PSS) films. The silver nanoparticles were synthesized in presence of PEDOT:PSS by varying the molar ratio between AgNO3 and the reducing agent (NaBH4). Both the particle size determined by T…
New methods are proposed for preparing aqueous sols of nanocrystalline ceria stabilized by citric or polyacrylic acid. Transmission electron microscopy and UV-Vis spectroscopy were used to study the stability of sols in hydrothermal treatment at temperatures in the range of 120–210°C.
Trivalent rare-earth (RE3+) ion-doped TiO2 nanophosphors belong to one kind of novel optical materials and have attracted increasing attention. The luminescence properties of different RE3+ ions in various TiO2 nanomaterials have been reviewed. Much attention is paid to our recent progresses on the luminescence proper…
Catalysts based on Co-Mg-Al, which were used for the total oxidation of toluene, were synthesized by using the hydrotalcite pathway. The calcination allowed us to obtain various mixed oxide types (i.e. Co 3 O 4 , Co 2 AlO 4 or CoAl 2 O 4 ), presenting mesopores of about 8 nm and high specific surface areas. The solids…
CaMnO 3 is a parent compound for numerous multicomponent manganese perovskite oxides. Its crystallographic data are of primary importance in the science and technology of functional CaMnO 3 -based materials. In the present study, data were collected for a CaMnO 3 sample at 302 K. The crystal structure refinement yield…
Abstract Exploiting the potential of the material for the photovoltaic applications requires an extensive defect level analysis, mandatory. Photoluminescence (PL) technique was employed to probe the defect levels in p‐SnS thin films deposited using chemical spray pyrolysis (CSP) technique. Three PL emissions were reco…
We study phase separation in suspensions of two unrelated species of rod-like bacteria, Escherichia coli and Sinorhizobium meliloti , induced by the addition of two different anionic polyelectrolytes, sodium polystyrene sulfonate or succinoglycan, the former being synthetic and the latter of natural origin. Comparison…
Specific features of the catalytic behavior of supported palladium nanoparticles were analyzed in terms of both the size of the particles and their interaction with the support. The influence of these factors on the activity and selectivity of palladium nanoparticles in carbon-carbon bond hydrogenolysis, hydrogenation…
Within porous Prussian blue to copper the highest H 2 storage capacity is observed. Such behavior finds explanation in the crystal structure for Cu 3 [M(CN) 6 ] 2 with M = Fe, Co, Ir. The crystal structure of Prussian blue analogues is usually solved and refined with a cubic unit cell in the Fm 3̅ m space group, which…
Degumming of pre-chlorite treated jute fiber was studied in this paper. The effects of sodium hydroxide concentration, treatment time, temperature, sodium silicate concentration, fiber-to-liquor ratio, penetrating agent TF-107B concentration, and degumming agent TF-125A concentration were the process conditions examin…
Abstract Yb:Y 2 O 3 submicrometric particles were synthesized through co‐precipitation of Yb and Y nitrate in water. Microwave heating and controlled release of ammonia through urea decomposition at reaction temperature leaded to the formation of disaggregated, monosized spherical particles of carbo‐hydroxy‐nitrate pr…
Abstract Summary: Templates formed by the self‐assembly of amphiphilic block copolymers in selective solvents have been found to be instrumental in controlling critical parameters in semiconductor nanomaterials fabrication, including particle size, shape, and composition. These tunable nanoreactors exhibit rich polymo…
The diffraction properties of polarization holographic gratings fabricated using the orthogonally elliptical polarized light have been systematically investigated on the basis of the Jones calculus. The theoretical prediction based on the Jones calculus was experimentally confirmed to be valid by fabricating the polar…
Abstract The effect of (Li,Ce) substitution for A‐site on the properties of [(Na 0.52 K 0.42 Li 0.06 )Bi] 0.5 Bi 2 (Nb 1.88 Sb 0.06 Ta 0.06 )O 9 ‐based ceramics was investigated. The piezoelectric activity of [(Na 0.52 K 0.42 Li 0.06 )Bi] 0.5 Bi 2 (Nb 1.88 Sb 0.06 Ta 0.06 )O 9 ‐based ceramics is significantly improved…
Within the framework of effective-field theory with correlations, the phase diagrams of an N -layer ferroelectric thin film with two surface layers are studied by the differential operator technique based on the spin-1/2 transverse Ising model. A general analytical equation for the phase diagram of a ferroelectric thi…
Gallium nitride nanofilms grown within nanochannels of Na-4 mica structure, exhibit ferromagnetism even at room temperature due to the presence of gallium vacancies at the surfaces of the nanofilms. These nanofilms also show a ferroelectric behavior at room temperature ascribed to a small distortion in the crystal str…
Abstract Photovoltaic conversion was enhanced by directly assemble of a network of single-walled carbon nanotubes (SWNTs) onto the surface of n-p junction silicon solar cells. When the density of SWNTs increased from 50 to 400 tubes μm −2 , an enhancement of 3.92% in energy conversion efficiency was typically obtained…
The cross-plane thermal conductivity of 22 nm period Si/SiC amorphous multilayer films deposited by magnetron sputtering and measured using a differential 3ω method was found to decrease from 2.0 W/mK at 300 K to 1.1 W/mK at 80 K. Structural disorder in each of the constituent layers of the amorphous multilayer films…