Abstract: A device for generation of hydrogen gas by dehydrogenation of hydrocarbon fuels. The device includes a fuel reservoir connected to a reactor by a fuel line to supply said reactor with fuel. The reactor has a first discharge for recycling of residual hydrocarbons generated during dehydrogenation to the fuel reservoir and optionally cooperates with a catalyst. The fuel reservoir may contact a heat exchanger by the fuel line and the first discharge. The fuel may be preheated by the heat exchanger which may be introduced to the reactor by the fuel line and the reactor may have a heating device for heating the introduced fuel to reaction temperature. The residual fuel generated by dehydrogenation in the reactor may be cooled by the heat exchanger and may be returned to the fuel reservoir. The reactor may have a second discharge for the extraction of the hydrogen gas generated on dehydrogenation.

Abstract: A ligand layer on a metal surface is capable of being reversibly switched between adhesion and deadhesion. The ligand layer includes substituted pyridine dimers and/or pyridine trimers which are selected from the group consisting of: with R1 through R6 being able to be equal or different and being selected from the group consisting of —R—CH(O)CH2, OH, —O—R, NR2, NHR, NH2, CO2H, CO2R, R and H. R is selected from the group consisting of alkyl and aryl residues with the proviso that not all residues R1 through R6 are hydrogen atoms at the same time. R7 is selected from the group consisting of —R—CH(O)CH2, OH, —O—R, NR2, NHR, NH2, CO2H, CO2R, CONHR, R and H, with R being selected from the group consisting of alkyl and aryl residues. Y is selected from the group consisting of silicon, carbon, nitrogen, phosphorus and oxygen atoms, and X is an oxygen, sulfur or phosphorus atom, and n having the value 0 or 1.

Abstract: A method for reversibly switchable cross-linking of monomers includes cross-linking the monomers by adding complexable metal ions to form a polymer, and bond-breaking the polymer formed by applying a direct voltage, by changing the pH value or by changing the temperature. The monomers include compounds of the general formulas R1 through R6 may be equal or different and are selected from the group consisting of H, OH, —NX2, —OX, —SH, and —SX, with X being selected from alkyl and/or aryl groups which are terminally substituted by reactive residues selected from the group consisting of OH, —CH(O)CH2, —NCO, —COOH and NZ2. Z is selected from the group consisting of alkyl groups, aryl groups and a hydrogen atom, one of the groups Z being a hydrogen atom with the proviso that not all residues R1 through R are hydrogen atoms at the same time.

Abstract: A ligand layer on a metal surface is capable of being reversibly switched between adhesion and deadhesion.

Abstract: A method for reducing the electrical resistance caused by a corrosion oxide coating at the current-carrying transition of a chromium steel component includes annealing the chromium steel component a temperature of at least 950° C. and removing any oxide coating that develops during said annealing before the component carries current.

Abstract: A method for reversibly switchable cross-linking of monomers includes cross-linking the monomers by adding complexable metal ions to form a polymer, and bond-breaking the polymer formed by applying a direct voltage, by changing the pH value or by changing the temperature.

Abstract: A magnesium alloy material includes magnesium; more than 1 wt. % manganese; and at least one sp-metal selected from the group consisting of zinc, cadmium, mercury, gallium, indium, thallium, germanium, tin, lead, arsenic, antimony, and bismuth, wherein the manganese and the at least one sp-metal together are a maximum of 5 wt. % of the alloy material. The magnesium materials are resistant to corrosion and are especially useful in articles exposed to aqueous electrolytes during use or production.

Abstract: Magnesium materials or components made of magnesium materials are protected against corrosion by a surface coating made of an alloy. The protective alloy coating contains a base alloy component A and at least one additive alloying component B. The base alloy component A is either titanium, or zirconium or magnesium. The alloying component B is selected from the following group: alkali metals, alkaline earth metals, rare-earth metals, yttrium, metals of the groups IIb, IIIa, IVa, and Va of the fourth or higher period of the periodic table of elements, and manganese.

Abstract: A molten carbonate fuel cell is constructed of plural stacked individual cell units, that each respectively include a porous, electrolyte saturated matrix (3) sandwiched between a cathode (2) and an anode (4), and current collectors (5, 6) respectively arranged between the anode (4) and a first separator plate (7), and between the cathode (2) and a second separator plate (8). Especially the cathode current collector (6) includes a stainless steel core (16) that is coated on at least one surface with an aluminum-containing layer (14). Preferably both surfaces of the stainless steel core (16) are coated with aluminum-containing layers (14A, 14B), except for a contact area (12) at which the stainless steel core (16) directly contacts the cathode (2). The aluminum-containing layer (14) prevents or minimizes the occurrence of an oxidation reaction that would otherwise lead to significant loss of the electrolyte.

Abstract: A segment 1 of an aerodynamic body has as the internal actuating drive an actuator 7, which acts on an upper profile shell 2 with one working piston 9 and on a lower profile shell with a working piston 8 acting in the opposite direction to generate oppositely directed arches of the segment 1. The profile shells 2 and 3 are mounted displaceably in relation to one another in dovetail guides 4 and 5.

Abstract: An apparatus and method for removing NO.sub.x from the exhaust of internal combustion engines. The apparatus has a porous absorbent body saturated with a liquid alkaline electrolyte for absorption of NO.sub.x as nitrate and nitrite, in which body electrodes are distributed pairwise for electrochemical decomposition of the nitrate and nitrite to form nitrogen. The method uses the apparatus of the invention to decompose nitrates and nitrites into diatomic nitrogen.

Abstract: A manufacturing method for a separator plate for a molten carbonate fuel cell and separator plate made by the method. The separator plate comprises Ni-clad stainless steel. Aluminum is brought onto the wet seal area of the separator plate by high-velocity oxygen flame spraying. In addition, an intermetallic phase of the aluminum and the base metal is produced. The base metal can be both stainless steel or nickel.

Abstract: A device for firing projectiles (9) through an electrically heated plasma including a combustion chamber (12) which is provided on the breech side and the muzzle side with an electrode each, between which an arc generating plasma burns. A cartridge (18), which contains a material that decomposes into a low-molecular-weight gas under the effect of the arc, can be introduced into the combustion chamber (12). A current conductor, which connects a breech-side electrode (10) to the muzzle-side electrode (7) extending annularly around the muzzle-side end of the cartridge (18), is arranged in the longitudinal axis of the cartridge (18). The current conductor (20) consists of a plurality of strands (21) which extend radially to the outside from the longitudinal axis toward the annular electrode (7) at least at the muzzle-size end of the cartridge (18).