Materials Literature
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The results presented in this study illustrate the multiple roles of seawater salinity toward the sonochemical degradation, at variable frequencies (300-1700 kHz), of several hazardous substances, i.e. propylparaben (PPR) endocrine disruptor and several synthetic dyes: naphthol blue black (NBB), malachite green (MG),…
Three isostrucutral dodecanuclear clusters with the general formula [Ln12(fsa)12(μf3-OH)12(DMF)12]·nDMF (fsa2- is the dianion of 3-formylsalicylic acid; Ln = Eu 1, Gd 2, Dy 3) have been obtained from the reaction of fromylsalicyclic acid (H2fsa), tetrabutylammonium hydroxide and Ln(NO3)3·6H2O in methanol/DMF. Their st…
The programmed crystallization of particles into low-symmetry lattices represents a major synthetic challenge in the field of colloidal crystal engineering. Herein, we report an approach to realizing such structures that relies on a library of low-symmetry Au nanoparticles, with synthetically adjustable dimensions and…
While thermally reversible polymer network coatings based on the Diels-Alder reaction are widely studied, the mechanisms responsible for the heating-mediated healing of damage is still not well understood. The combination of microscopic evaluation techniques and fundamental insights for the thermoreversible network fo…
The half-Heusler compounds YPdBi and TbPdBi, while having a similar band structure, exhibit different magnetic properties. YPdBi is a diamagnet, while TbPdBi shows antiferromagnetic order below 5.5 K. Both are superconductors with ${T}_{c}\ensuremath{\approx}1$ K for YPdBi and ${T}_{c}\ensuremath{\approx}1.75$ K for T…
Two gadolinium clusters, [Gd2(H3L)2(NO3)2](NO3)2 (1) and [Gd3(HL)(H2L)(NO3)4]·C2H5OH (2) (H4L = N,N,N',N'-tetrakis(2-hydroxyethyl)ethylenediamine), were synthesized and characterized with different solvents. The magnetic properties of 1 and 2 were recorded and studied in detail. 1 is a centrosymmetric binuclear Gd2 cl…
The incorporation of polyhedral oligomeric silsesquioxanes (POSS) molecules as nanoparticles into polymers can provide improved physico-chemical properties. The enhancement depends on the extent of dispersion of the nanofiller, which is determined by the compatibility with the polymer that is by the POSS type, and the…
High Resolution Image Download MS PowerPoint Slide In situ Raman spectra of HoVO 4 micro- and nanocrystals were obtained at high pressures up to 25.4 and 18.0 GPa at room temperature, respectively. The appearance of new peaks in the Raman spectra and the discontinuities of the Raman-mode shift provided powerful eviden…
Abstract This work demonstrates a novel approach to application of in situ Raman spectroscopy to study laser‐induced stabilization of reduced nanoceria (CeO 2− x ) supported on graphene—a promising nanocomposite for future development of nanomaterial‐enabled gas sensors or vital catalysts for hydrogenation of alcohols…
Graphite tube woven fabrics (GTWF) and boron nitride (BN) sheets filled polydimethylsiloxane (PDMS) composites were successfully prepared with enhanced thermal conductivity (TC) and electrical insulation. The continuous graphite tubes after etching nickel template provide fast channels for heat transfer, especially in…
Free torsional vibration of cracked carbon nanotubes with elastic torsional boundary conditions is studied. Eringen’s nonlocal elasticity theory is used in the analysis. Two similar rotation functions are represented by two Fourier sine series. A coefficient matrix including torsional springs and crack parameter is de…
Yb3+-Er3+ and Yb3+-Ho3+ co-doped Ba3Lu2Zn5O11 phosphors were successfully obtained. The structure of the as-synthesized phosphor was determined by Rietveld refinement. The up-conversion (UC) spectra of Ba3Lu2Zn5O11:Yb3+,Er3+ exhibits two prominent emission bands centered at 560 and 663 nm, which originate from the 2H1…
The syntheses of a novel 1,4,8,11,15,18,22,25-octahexyloxy-2,3,9,10,16,17,23,24-octa-(4-trifluoromethoxyphenyl) phthalocyanine (3a) and its zinc(II) phthalocyanine derivative (3b) have been described and characterized by elemental analysis,1H NMR, 13C NMR, 19F NMR, mass, UV-Vis and FT-IR. The newly prepared metal-free…
Abstract Thermochromic VO 2 thin films were deposited on soda‐lime glass via sol‐gel method. Doping was done through adding tungstic acid solution to the vanadium solution precursor. Grazing incidence x‐ray diffractometer ( GIXRD ) results showed that VO 2 and V 6 O 13 phases were formed together in the heat‐treated s…
Single-walled carbon nanotubes (SWCNTs) were prepared by a modified arc discharge furnace using 500 Torr helium as buffer gas at 600 °C. The effect of the catalyst type on the production of SWCNTs was studied by transmission electron microscopy, X-ray diffraction and Raman spectroscopy. The experimental results indica…
A non-destructive chemometric method to determine thickness and boron concentration of as-deposited, thin, heavily doped diamond films by Raman microscopy.
Stable structures of metallic antiperovskites $A{\mathrm{CNi}}_{3}\phantom{\rule{4pt}{0ex}}(A=\mathrm{Mg},\text{Zn},\text{and Cd})$ under epitaxial strain are explored using first-principles lattice dynamics calculations. Although the ground states of $A{\mathrm{CNi}}_{3}$ are cubic nonpolar phases without structural…
Carbon nanotubes (CNTs) were synthesized on a Ni catalyst–diatomite substrate using a chemical vapor deposition (CVD) method. By controlling the synthesis conditions, we explored the influence of synthesis time and temperature on the synthesis of CNTs. The carbon yield and microstructure of the resulting CNTs were inv…
Three-dimensional ordered mesoporous Ni y MnO x catalysts were synthesized by the nanocasting method and tested for selective catalytic reduction (SCR) of NO x with ammonia. The addition of Ni could greatly enhance the low temperature performance of the catalysts. Various techniques (XRD, TEM, and HR-TEM, N 2 adsorpti…
Tungsten (W) was considered as one important candidate for the magnetically constrained plasma first wall materials. The H impurities have a strong influence on the mechanical and thermal properties of the W metal and seriously affect its service life. From first-principles calculations, we studied the influence of in…