1,721,231 research outputs found
Mesoporous Thin Films: Properties and Applications
No full text"In this review we present a short overview of the main fields of application of mesoporous ordered. films obtained via templating self-assembly. These materials, because of their very special properties. such as high surface area, ordered porosity, versatile functionalization of the pore surface, have been. widely used for developing advanced functional applications. Mesoporous ordered films have also. shown a high capability of integration in current material processing technologies also taking. advantage of the high flexibility of the synthesis. A surprisingly large variety of devices and applications. have been developed so far which ranges from sensors to supercapacitors and biodevices. All these. applications have in common the exploitation of ordered porosity on the mesoscale and in general a. strong dependence on pore topology, the nature of the pore surface and pore accessibility has been. demonstrated for most of the cases. Even if a high number of examples of applications have been. reported still many more are expected to come in the near future.
Nanoparticles in mesoporous films, a happy marriage for materials science
No full textMesoporous ordered materials, whose porosity is within the 2–50-nm range, are an ideal host for functional nanoparticles. Mesoporous thin films, in particular, offer a large variety of options for the fabrication of advanced materials and devices based on the host-guest combination of matrix nanoparticles. Nanocomposite mesoporous films embedding metal, oxide, and semiconductor nanoparticles have been prepared using as matrix oxides, mixed oxides, and organic-inorganic hybrids. The organization of the pores is an important peculiar property of mesoporous ordered films and allows producing nanocomposites whose nanoparticles follow a very specific array within the material. The main synthesis methods to obtain mesostructured films containing nanoparticles, together with their applications, are briefly introduced in the present review
Hard X-rays meet soft matter: when bottom-up and top-down get along well
No full text"The combined approach of bottom-up and top-down routes allows direct soft matter patterning and fabrication of devices using faster and more versatile protocols. In this research news, we briefly describe some of the fundamentals, development, recent progress and perspectives in the fabrication and patterning of functional nanostructured materials by interaction with high energy X-rays.
Sol–gel chemistry: from self-assembly to complex materials
No full text"Sol–gel appears nowadays as a mature branch. of chemistry with much of the basic research that has been. exploited for the most part. The possibility of combining. sol–gel with supramolecular chemistry has, however, open. almost endless possibilities of new applications of sol–gel. processes which have therefore become a fundamental tool. of nano-chemistry. We have briefly reviewed the work. done in our laboratory in this field, from self-assembly,. with a description of the analytical in situ techniques that. we have developed up to the design of nanomaterials of. increasing complexity.
- …
