Materials Literature
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Novel metal nanoparticles of Pd and Pt were prepared by sonochemical reduction of solutions containing H 2 PtCl 6 or K 2 PdCl 4 . The effect of atmospheric gas on the particle size distribution was investigated. Average diameters and standard deviations of the Pd particles prepared under Ar (Pd/Ar) and N 2 (Pd/N 2 ) w…
Several group contribution methods to estimate the aqueous solubility of organic molecules are proposed and evaluated for their ability to predict the water solubility of new molecules. The learning set consisted of 1168 organic compounds with experimental data taken from the literature after critical evaluation. The…
In this paper, we present the results of variations in the bulk solvent type and the addition of cosolvents on the growth rate of metallic copper nanoparticles produced through a reduction reaction within AOT reverse micelles. The metallic copper particles were characterized using both UV−vis spectroscopy and TEM micr…
Sol-gel electrochemistry is gaining popularity as a versatile general method for the production of inorganic-organic electrodes and electrochemical sensors. Carbon-ceramic electrodes constitute a fine example that demonstrates the disadvantages, capabilities and promise of sol-gel electrochemistry. The compositions, c…
Sol-gel electrochemistry is gaining popularity as a versatile general method for the production of inorganic-organic electrodes and electrochemical sensors. Carbon-ceramic electrodes constitute a fine example that demonstrates the disadvantages, capabilities and promise of sol-gel electrochemistry. The compositions, c…
The defect structure of undoped and Sn-doped In2O3 (ITO) materials was studied by preparing powders under different processing environments and performing neutron powder diffraction. The effect of tin doping and oxygen partial pressure was determined. Structural information was obtained by analyzing neutron powder dif…
Two new methods of preparing thin porous metallic films, based on controlled co-crystallization of latex microspheres and gold nanoparticles, have been developed by these authors. The new materials show interesting optical properties and excellent surface-enhanced Raman spectroscopy (SERS) activity. The Figure shows a…
Recent progress in the production, purification, and experimental and theoretical investigations of carbon nanotubes for hydrogen storage are reviewed. From the industrial point of view, the chemical vapor deposition process has shown advantages over laser ablation and electric-arc-discharge methods. The ultimate goal…
A transparent ZnO homostructural light-emitting diode (LED) with a structure of Au electrode/p(i)-ZnO film/n-ZnO single crystal/In electrode was fabricated using the technique of N 2 O plasma-enhanced pulsed laser reactive deposition. The contact between the p(i)-ZnO layer and n-ZnO wafer was found to exhibit nonlinea…
We have tried to establish a relationship between the raw material and the mechanical properties of ceramic pieces subjected to different firing processes, so under the determinant of the thermal process we have done a follow up on the petrogenetic process that the manufacture of ceramics represents. This is evaluated…
Although there are many research studies about plaster strengthened with glass fibre E in Spain, there are no publications which advise the users (plasterers, manufacturers of prefabricated blocks or suspended ceilings, etc) about the most appropriated types of fibre E in respect to its dispersebility degree in the ma…
The aim of the present work was to evaluate the validity of non-calorimetric different methods, used in the determination of reaction degree of alkaline activated slag pastes. The methods used were: (a) chemical separation by methanol-salicylic acid; (b) determination of the weight loss mass between 100-600°C in TG cu…
In a previous article the materials and the state of conservation of the Front Door of the church have been characterized, with the aim of determining the causes and the alteration mechanisms that are present in it. In the present work the behaviour of several treatments, water repellents and/or consolidants, is evalu…
To recycle and reutilise waste materials and find definite applications for their use, it is necessary to have a deep knowledge of them. The aim of this study is to study the possibility of using waste materials from calcined clay, actually ceramic tile, once crushed and grounded, as pozzolanic material. For this purp…
Results of studies conducted in lime pozzolana pastes are introduced in this paper. The pozzolana was sourced from Sugar Cane Baggasse Ash (CBC) and Sugar Cane Straw Ash (CPC). The hydration of this binder was carefully monitored by means of instrumental techniques with the aim of describing the kinetics of the reacti…
After description of basic principles of efflorescent effect in bricks in a former published paper, where the classification and examples of efflorescences were given, here are shown the methods for prevention and techniques for curing of this pathology. Some comments about Standards are included as well as very brief…
Measurements of neutron inelastic scattering, thermal expansion and low-temperature heat capacity were used to study the phonon entropy of the martensite-to-austenite transformation in NiTi, which is found to be (0.5 ± 0.05) k B atom−1. The inelastic scattering spectra were corrected for the differing scattering ampli…