Abstract: An electrochemical device including an anode, a cathode and an electrolyte membrane disposed between the anode and the cathode, wherein the electrolyte membrane has a material of formula La1?xSrxGa1?yMGyO3?0.5(x+y), wherein x and y are independently a value of 0.1 to 0.3, said material having a relative density of at least 90% and including LaSrGaO4 in a percentage of 0.05 vol % to 10 vol %. A method for producing energy and a method for separating oxygen from a gas mixture are also disclosed.

Abstract: A fuel cell having a membrane-electrode assembly including an anode, a cathode, and a polymer electrolyte membrane interposed between the anode and the cathode, wherein the polymer electrolyte membrane is a sulfonated polysulfone polymer.

Abstract: An electrochemical device including an anode, a cathode and an electrolyte membrane disposed between the anode and the cathode, wherein the electrolyte membrane has a material of formula La1?xSrxGa1?yMGyO3?0.5(x+y), wherein x and y are independently a value of 0.1 to 0.3, said material having a relative density of at least 90% and including LaSrGaO4 in a percentage of 0.05 vol % to 10 vol %. A method for producing energy and a method for separating oxygen from a gas mixture are also disclosed.

Abstract: Solid oxide fuel cell including an anode which has a cermet activated by a catalyst for hydrocarbon oxidation, process for the preparation thereof, and method for the production of energy exploiting it.

Abstract: A fuel cell includes: (a) an anode; (b) a cathode; and (c) a polymer electrolyte membrane including at least one polyolefin, the polyolefin being obtained by grafting side chains containing proton conductive functional groups onto a polyolefin having a crystallinity of 41% to 48%, preferably 42% to 46%. According to one preferred embodiment, the fuel cell is a direct methanol fuel cell.

Abstract: Solid oxide fuel cell wherein the anode has a cermet, including a metallic portion and an electrolyte ceramic material portion substantially uniformly interdispersed.

Abstract: A proton exchange membrane fuel cell includes at least one membrane-electrode assembly including an electrolyte membrane based on a fluorine free polymer grafted with side chains containing proton conductive functional groups, and interposed between an anode and a cathode, the anode including a catalytic layer including a catalyst and a fluorinated ionomer. The catalytic layer has a fluorine/catalyst ratio that increases in a direction from the electrolyte membrane to an outer surface of the anode.

Abstract: A method for manufacturing an optical device including at least one silicone elastomer optical waveguide includes the steps of providing a substantially rigid mold with a patterned surface, providing a core layer of a curable silicone elastomer, patterning the core layer by means of the patterned surface of the substantially rigid mold, curing the patterned core layer, and removing the substantially rigid mold from the patterned core layer. The method advantageously allows the manufacture of an optical device including at least one optical waveguide in a single step and in a reproducible manner.

Abstract: An optical waveguide has a core layer made by a film containing a cross-linked polyamide based on a repeating unit of general formula (I) and a method for the production thereof.

Abstract: An optical waveguide has a core layer made by a film containing a cross-linked polyamide based on a repeating unit of general formula (I) and a method for the production thereof.

Abstract: An optical waveguide based on a photochromic diarylethene polymer dispersed in a polymeric matrix, and a method for preparing such waveguide is disclosed.

Abstract: An electrochemical oxygen separator cell including an electrode based on lanthanum strontium manganese oxide or lanthanum strontium cobalt iron oxide; and an electrolyte membrane of doped ceria.

Abstract: A fuel cell having a membrane-electrode assembly including an anode, a cathode, and a polymer electrolyte membrane interposed between the anode and the cathode, wherein the polymer electrolyte membrane is a sulfonated polysulfone polymer.

Abstract: An optical waveguide based on a photochromic diarylethene polymer dispersed in a polymeric matrix, and a method for preparing such waveguide is disclosed.

Abstract: Fuel cell having: (a) an anode; (b) a cathode; (c) a polymer electrolyte membrane placed between the anode and the cathode which has at least one polyolefin grafted with a side chain containing proton conductive functional groups; wherein said fuel cell has a value of cell resistance at 90° C. not higher than 0.30 ?cm2, preferably having between 0.2 ?cm2 and 0.25 ?cm2, more preferably between 0.05 ?cm2 and 0.20 ?cm2; a value of cell resistance at 20° C. differing from the value of cell resistance at 90° C. of an amount not higher than 90%, preferably not higher than 70%, more preferably not higher than 50%, with respect to the value of cell resistance at 90° C. Preferably, said fuel cell is a direct methanol fuel cell (DMFC).

Abstract: A temperature indicator includes at least one reactive substance and at least one dye substance. The at least one reactive substance has a threshold temperature and the at least one dye substance has at least one characteristic peak in its absorption or emission spectrum. When an excess temperature is reached in the tire, the at least one reactive substance is heated above the threshold temperature and reacts with the at least one dye substance so as to modify the at least one characteristic peak. A related pneumatic tire includes at least one such temperature indicator.

Abstract: Optical fibre having a glass portion and at least one coating of crosslinked polymer material surrounding the glass portion, the coating being obtained by crosslinking a mixture of at least one crosslinkable liquid composition having at least one oligomer containing at least one reactive functional group, at least one diluent monomer capable of reacting with the reactive functional group and at least one photo-initiator; at least one inorganic material with lamellar structure formed by a plurality of lamellae that have been surface-treated beforehand with a compatibilizer. The coating is formed by the crosslinked liquid composition intercalated between the lamellae of the inorganic material. Preferably, the coating is a secondary coating or, in the case of a ribbon of optical fibres, it is a common polymer coating known as a “common coating.

Abstract: The invention relates to new polymers useful in non linear optical (NLO) applications, particularly as optical waveguide materials.

Abstract: The invention describes a cable, in particular for electric energy transportation or distribution, in which an electrically insulating layer is present, consisting of a material substantially free of lead or derivatives thereof, and having high resistance to water. This material includes an elastomer terpolymer having the following composition: a) 50-90 moles percent of ethylene; b) 10-50 moles percent of an &agr;-olefin; c) 0.16-5 moles percent of 5-vinyl-2-norbornene; the sum of the moles percent of a), b), c) being 100, said terpolymer having a branching index of less than or equal to 0.5 and a molecular weight distribution index Mw/Mn of greater than or equal to 6.

Abstract: A fire-retardant composition includes a base polymer composition, including a polymer base material; melamine or a melamine derivative; red phosphorus; magnesium hydroxide or hydrated oxide, aluminum hydroxide or hydrated oxide, or magnesium hydroxide or hydrated oxide and aluminum hydroxide or hydrated oxide; and zeolite. The melamine or melamine derivative includes amounts between 5 and 50 parts-by-weight, inclusive. The red phosphorus includes amounts between 5 and 50 parts-by-weight, inclusive. The magnesium hydroxide or hydrated oxide, aluminum hydroxide or hydrated oxide, or magnesium hydroxide or hydrated oxide and aluminum hydroxide or hydrated oxide includes amounts between 10 and 150 parts-by-weight, inclusive. The zeolite includes amounts between 1 and 5 part-by-weight, inclusive. A self-extinguishing cable, including at least one conductor and at least one coating layer is also disclosed. The at least one coating layer includes the fire-retardant composition.