Materials Literature
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A bilayer “paper,” composed of adjacent graphene oxide and MWCNT layers each approximately 10-µm thick, is fabricated by simple sequential filtration of an aqueous suspension of MWCNTs and then graphene oxide platelets, and demonstrated as the first case of a macroscopic graphene-based actuator. The papers curl (see i…
Fluid Interfaces and Capillarity Thermodynamics of Interfacial Systems Solid-Liquid Interactions Colloidal Systems: Phenomenology and Characterization Electrical Properties of Interfaces Interaction Between Colloid Particles Rheology of Dispersions Emulsions and Foams Interfacial Hydrodynamics.
Cellulose nanocrystals (or whiskers) and microfibrillated cellulose (MFC) were successfully obtained from sisal fibers and modified with n-octadecyl isocyanate (C(18)H(37)NCO) using two different methods with one innovation that consists of an in situ solvent exchange procedure. The surface chemical modification was c…
As carbons are widely used in energy storage and conversion systems, there is a rapidly growing need for an updated book that describes their physical, chemical, and electrochemical properties. Edited by those responsible for initiating the most progressive conference on Carbon for Energy Storage and Environment Prote…
Abstract Raman scattering spectroscopy has been used for the characterization of zinc oxide nanoparticles obtained by mechanical activation in a high‐energy vibro‐mill and planetary ball mill. Raman modes observed in spectra of nonactivated sample are assigned to Raman spectra of the ZnO monocrystal, while the spectra…
Here we report the synthesis of conducting indium tin oxide (ITO) nanoparticles (NPs) and their surface plasmon resonance (SPR) properties. The SPR peaks of the ITO NPs can be easily tuned by changing the concentration of Sn doping from 3 to 30 mol %. The shortest SPR wavelength of 1618 nm in 10% Sn-doped ITO NPs may…
Graphene fillers are shown to be remarkably effective in suppressing crack propagation in epoxy polymers (see image). The graphene fillers show comparable increases in fracture toughness and fatigue crack propagation resistance to carbon nanotube, nanoparticle, and nanoclay additives at one to two orders of magnitude…
The microstructure of sintered porous yttria‐stabilized zirconia (YSZ) pellets was controlled by adjusting the sintering temperature and adding appropriate amounts of polymethyl methacrylate powder to produce pores. The thermal diffusivity of the pellets was measured using the laser flush technique. The influence of p…
Abstract Two hydrophobically modified PNIPAM semitelechelics P x F 9 were prepared by “clicking” PNIPAM containing an azide endgroup (P x N 3 ) with nonadecafluoro‐1‐decyl hex‐5‐ynoate (F 9 ). Micelles of P x F 9 in water with a core of F 9 ‐segments and a PNIPAM corona were detected by dynamic light scattering and by…
Abstract The use of the alcohol‐chemical vapor deposition (A‐CVD) process applying ferromagnetic catalyst mixes is a powerful technique for the synthesis of high purity single‐, double‐ and multiwalled carbon nanotubes (MWCNTs). Here, we report on a systematic experimental study on the preparation route of carbon nano…
Abstract We report the application of commercial carbon nanotubes (CNTs) in two important heterogeneously catalyzed reactions, i.e ., NH 3 decomposition and oxidative dehydrogenation of ethylbenzene (EB). For NH 3 decomposition, CNTs were used as supports for Co–Mo nanoparticles. The structure of fresh and used cataly…
Abstract Polymer films exhibiting large negative birefringence, suitable for compensating residual positive birefringence of liquid crystal displays, have been achieved for syndiotactic polystyrene. Procedures involving axial stretching at different draw ratios of unoriented films, followed by different crystallizatio…
The microstructural development of the Zn–Mn–O system in air atmosphere is governed by the formation and thermal evolution of different Mn 3− x Zn x O 4 spinel‐type phases, whose degree of distortion varies as a function of composition and temperature. By means of X‐ray powder diffractometry and X‐ray absorption spect…
Abstract A series of poly(propylene terephthalate)/silica nanocomposites containing 0.5, 2, 3.5, and 5 wt.‐% SiO 2 were prepared by application of the in situ method. The nanocomposites with 3.5 and 5 wt.‐% SiO 2 showed an insoluble content because of branching or cross‐linking of the macromolecules, as a result of re…
Controlled reaction of magnesium with ethanol was found to produce morphological magnesium ethoxide. The scanning electron microscopy studies indicate that particles of magnesium ethoxide grow on the surface of magnesium granules and are detached from the surface as a result of shearing and collisions during the react…
Magnetic and crystallographic properties of ${\text{Gd}}_{5}{\text{Sb}}_{0.5}{\text{Ge}}_{3.5}$ were investigated using dc magnetization, ac magnetic susceptibility, and heat capacity of an oriented single crystal, combined with temperature and magnetic field dependent x-ray powder diffraction. The compound undergoes…
Abstract The growth of isolated carbon nanotubes (CNTs) using chemical vapour deposition process catalysed by the molecular nanocluster {Mo 72 Fe 30 } of the Keplerate structure type in different oxidation states is studied on different substrates. The molecule in its oxidized state (Mo VI /Fe III ) agglomerates in so…
Magnesium ferrites (MgFe2O4) are ceramic oxides with spinel-type crystalline structure; they have interesting technological properties. The aim of this study was to obtain nanostructured MgFe2O4 through solution combustion synthesis using iron nitrate and magnesium nitrate as precursors and glycine as fuel, without th…
Abstract The sol–gel technique has provided promising opportunities for the preparation of polymer/inorganic hybrid materials at the molecular level, which ensures the inorganic particles are well dispersed in the organic matrix. In this work, poly(trimethylene terephthalate) (PTT)/silica nanocomposites were fabricate…
A wedge-shaped amphiphilic molecule, 3,4,5-tridodecyloxycinnamic acid, was used as a model system to explore the role of different constitutive elements of the chemical structure in the formation of 2D and 3D self-assemblies. The polar heads forming cyclic hydrogen-bonded dimers determine the two largest unit cell par…