Metal-Based Nanostructures

In this case we took care of a very major question concerning the reliability of the metal nanocluster diameters determination to be compared with the ISEC-based nanostructural outcomes of the macromolecular mold. In fact TEM analysis is based on the counting of some hundreds of metal nanoclusters and the pretence to propose such universal criterion as TCS had to cope with a far more reliable verification. 

In conclusion, these data do not allow concluding whether or not Titania nanotubes form better catalysts due to their intrinsic nanostructure, and not simply because they have a high geometrical surface area and provide a good dispersion of supported catalysts. These properties may be found in other Titania based catalysts not having a ID nanostructure. On the other hand, it is also clear from above comments that most of the studies up to now were justified essentially from the curiosity to use a novel support more than from the rational design of advanced catalysts, which use the metal oxide nanostructure as a key component to develop... 

In the last few years a great number of polynuclear transition metal complexes have been synthesized. Such compounds usually have well-defined composition and, in several cases, present a modular structure since they can contain repetitive metal-based components and/or spacers made of repetitive units. Research in the field of polynuclear transition metal complexes can give an important contribution to the development of modular chemistry and to the bottom-up design of nanostructures. ... 

There is a need to develop a better theoretical understanding of the radiation signals of gold and silver nanostructures including Raman scattering, Mie scattering, and fluorescence. New probes composed of metal-based nanoparticles or atomic clusters should be developed to provide improved sensitivity, specificity, and spatial localization capabilities. 

Ammonia sensors based on metal oxide nanostructures... 

To overcome such issues, much attention is currently being given to storing hydrogen in solid-state materials. Recently emerging materials include doped carbon-based nanostructures [3], metal organic frame vorks [4], metallic hydrides [5], complex hydrides and destabilized hydrides [6, 7]. Ho vever, no material so... 

Thin metalhc fihns play an important role in diverse fields of applications, with special emphasis on micro- and nanoelectronics for which the metals Al, Cu, Ag, Au, Ti and W are essential Additional fields of commercial interests are electrodes as well as reflective, corrosion-resistant, oxidation-resistant and abrasion-resistant coatings . Noble metals (periods 5 and 6 of groups 8-11 of the periodic table of the elements) are of special interest due to their manifold application in heterogeneous catalysis. Other metals used in specialized industrial applications or as components of more complex materials such as metal alloys are Ni, Pd, Pt, Ag and Au. For example, FePt-based nanostructured materials are excellent candidates for future high-density magnetic recording media . ... 

NANOSTRUCTURED AND NANOCOMPOSITE LIGHT METAL-BASED COMPOUNDS FOR HYDROGEN STORAGE... 

Key words hydrogen storage/nanostructured light metal-based hydrides/controlled reactive mechanical alloying/magnesium hydride/amorphous hydrides... 

The study of naked transition metal clusters forms the basis and reference for understanding the properties of the corresponding ligated and supported species. Most of the experimental evidence so far available deals with ligand-stabilized or supported clusters which are the species commonly encountered in colloidal solutions, catalytic materials, and cluster based nanostructured materials. Thus, systematic theoretical work on free unperturbed transition metal clusters is especially needed to provide fundamental information, since these clusters are not so easily accessible experimentally. 

Our findings showed that the interaction of compression plasma flow containing metal components with the surface of material resulted in the formation of nanostructured metal based thin films with the size of structural components up to 300 nm. An increase of the number of pulses allows to produce alloys of the steel substrate with the components of plasma flow. Thus, the new method of the materials surface layer modification combined the compression plasma flows treatment with film deposition can be proposed. 

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