Abstract: The invention provides a porous support for integrating electrochemical reaction cells with high-density, having a plurality of through-holes, an electrochemical reaction cell stack and an electrochemical reaction system comprising the porous support for integrating electrochemical reaction cells with high-density, and the invention relates to a support for integrating electrochemical reaction cells with high-density, in which a plurality of through-holes provided in a porous support act as structural supports for electrochemical reaction cells, to an electrochemical reaction cell stack in which electrochemical reaction unit cells are integrated at a high density using the porous support, to an electrochemical reaction system comprising the electrochemical reaction cell stack, and to a manufacturing method thereof, and the present invention enables to provide a porous support for integrating electrochemical reaction cells with high-density, an electrochemical reaction cell stack and an electrochemical reactio

Abstract: Tube electrochemical reactor bundle or stack, having a structure, in which a plurality of tube fuel cells, formed of a dense ion conductor (electrolyte) and cathode (air electrode) laminated to an anode (fuel electrode) material having a tube structure, are electrically connected by a thin metallic wire, and an electrochemical reactor system using them are provided.

Abstract: The present invention is an electrochemical reactor unit in which a plurality of electrochemical reactor cells constituted by a tube are housed in a porous material body having a heat releasing function and a current collecting function, these are electrically connected in series, and a fuel manifold is mounted to the connected electrochemical reactor cells; an electrochemical reactor module that comprises a plurality of the units which are arranged in fuel supply holes, and a structure supplying air directly to the entire electrochemical reactor module; and an electrochemical reaction system in which such an electrochemical reactor module is utilized.

Abstract: The present invention is an electrochemical reactor unit in which a plurality of electrochemical reactor cells constituted by a tube are housed in a porous material body having a heat releasing function and a current collecting function, these are electrically connected in series, and a fuel manifold is mounted to the connected electrochemical reactor cells; an electrochemical reactor module that comprises a plurality of the units which are arranged in fuel supply holes, and a structure supplying air directly to the entire electrochemical reactor module; and an electrochemical reaction system in which such an electrochemical reactor module is utilized.

Abstract: The present invention is an electrochemical cell system gas sensor that detects a subject substance to be detected using an electrochemical reaction system and comprises an ion conduction phase and at least two kinds of electrode facing each other and contacting the ion conduction phase, an electrode structure thereof comprising a chemical detection electrode layer having a selective adsorption characteristic relative to the subject substance to be detected and at least one reference electrode layer serving as a counter electrode to the chemical detection electrode layer, a manufacturing method thereof, and a method of detecting the subject substance to be detected, the present invention provides a chemical detection system having an extremely high response speed and great detection ability irrespective of high or low temperatures and even in the presence of excessive oxygen that impairs the chemical reaction of the subject substance to be detected.

Abstract: Tube electrochemical reactor bundle or stack, having a structure, in which a plurality of tube fuel cells, formed of a dense ion conductor (electrolyte) and cathode (air electrode) laminated to an anode (fuel electrode) material having a tube structure, are electrically connected by a thin metallic wire, and an electrochemical reactor system using them are provided.

Abstract: The invention provides a porous support for integrating electrochemical reaction cells with high-density, having a plurality of through-holes, an electrochemical reaction cell stack and an electrochemical reaction system comprising the porous support for integrating electrochemical reaction cells with high-density, and the invention relates to a support for integrating electrochemical reaction cells with high-density, in which a plurality of through-holes provided in a porous support act as structural supports for electrochemical reaction cells, to an electrochemical reaction cell stack in which electrochemical reaction unit cells are integrated at a high density using the porous support, to an electrochemical reaction system comprising the electrochemical reaction cell stack, and to a manufacturing method thereof, and the present invention enables to provide a porous support for integrating electrochemical reaction cells with high-density, an electrochemical reaction cell stack and an electrochemical reactio

Abstract: The present invention relates to a ceramic chemical reaction device capable of decomposing solid carbon, and provides a chemical reactor comprising a chemical reaction device that has an ion-conducting ceramic material and a chemical reaction structure composed of a catalyst electrode that is formed on the ceramic material and can electrochemically remove solid carbon (PM) by direct oxidation, a cathode, a solid electrolyte, and an anode, and thereby solid carbon (PM) is directly oxidized and removed on the anode surface by a reaction of C+2O2??CO2 by using oxygen ions supplied via the solid electrolyte.

Abstract: The present invention provides a smaller and more efficient tube-type electrochemical reactor cell stack, along with an electrochemical reactor system using this stack, and the invention provides an electrochemical reactor cell stack which is a structure comprising electrochemical reactor cells with a tube structure composed of an anode (fuel electrode), a dense ion conductor (electrolyte) and a cathode (air electrode) arranged in connecting holes on the side of a fuel gas pipe, wherein each tube-type cell is connected in parallel or series electrically by means of a conduction connector, along with a manifold for tube-type cells and an electrochemical reactor system using it, and the use of a manifold and stack structure with high industrial productivity allows the small tube-type cells to be highly integrated, so that a highly efficient solid oxide fuel cell or other electrochemical reactor system can be provided.

Abstract: The present invention provides a tubular electrochemical reactor cell capable of realizing reduced size and high efficiency, and an electrochemical reactor system using the same, and in a tubular electrochemical reactor cell and an electrochemical reactor system composed thereof, the tubular cell is a tubular cell electrochemical reactor cell in which a dense ionic conductor (electrolyte) and cathode (air electrode) are laminated onto a tube structure composed of an anode (fuel electrode) material, the tube outer diameter being 2 mm or less, the tube wall thickness being 0.5 mm or less, and the porosity of the tube structure being 10% or more; a production process of the tubular electrochemical reactor cell; and, an electrochemical reactor system comprising a chemical reaction unit using the tubular electrochemical reactor cell as a basic unit thereof.

Abstract: The present invention relates to a chemical reaction system for efficiently excluding nitrogen oxides with low power consumption when excess oxygen is present in exhaust gas, to a method of use therefor, to an activation method therefor, and to a reaction method for oxidizing or reducing by the use of an oxidation-reduction reactor with high selectivity without the need to supply or exchange a reducing agent or oxidizing agent.

Abstract: The present invention provides a chemical reactor with which nitrogen oxide emission control can be performed very efficiently at a low applied voltage when an excess of oxygen is present in a combustion exhaust gas. The present invention is a chemical reactor in which the upper cathode, lower cathode, and anode that make the chemical reactor are a mixture of an electron-conductive substance and an ion-conductive substance, and the electron-conductive substance and ion-conductive substance of the upper cathode are mixed in a specific ratio, which makes it possible to lower the applied voltage and reduce the power consumption of the chemical reactor, and is also a method for the emission control of nitrogen oxides in which this chemical reactor is used.

Abstract: The invention relates to a chemical reactor having an electrochemical cell containing a three-layer structure for the decomposition and removal of a substance treated by a chemical reaction.

Abstract: The present invention provides a chemical reactor for carrying out chemical reactions of substances to be treated in the presence of excess oxygen in which nitrogen oxides can be decomposed and removed with high efficiency and low energy consumption, wherein the catalytic reaction is utilized to reduce the content of excess oxygen during the chemical reactions.

Abstract: The invention relates to a chemical reactor having an electrochemical cell containing a three-layer structure for the decomposition and removal of a substance treated by a chemical reaction.

Abstract: The present invention provides a gas sensor element having properties capable of detecting methane and carbon monoxide selectively with 1 sensor by improving gas selectivity of the semiconductor gas sensor. The present invention relates to a gas sensor element, which has a carbon monoxide sensor layer with an ability to function as a catalyst film that blocks carbon monoxide, which impedes detection of methane at the underlying methane sensor, and has a layer-built structure where the surface of a methane sensor is covered with the carbon monoxide gas sensor which can be obtained by a gas-phase method.

Abstract: The present invention provides a gas sensor element having physical, electrical and chemical properties capable of detecting methane and carbon monoxide selectively with 1 intergrated filtering, catalyzing sensor by improving gas selectivity of the semiconductor gas sensor. The present invention relates to a gas sensor element, which has a carbon monoxide sensor layer with an ability to function as a catalyst film that blocks carbon monoxide, which impedes detection of methane, and has a layer-built structure where the surface of a methane sensor is covered with the carbon monoxide gas sensor which can be obtained by a gas-phase method.

Abstract: A powder for sintering is prepared by the wet mixing of a finely and uniformly divided alumina powder of high purity having a primary particle diameter not exceeding 0.15 micron and an average particle diameter not exceeding 0.3 micron, and a partially stabilized zirconia powder of high purity having an average particle diameter not exceeding 0.3 micron. After granulation and molding, the mixed powder is sintered at a temperature of 1300.degree. C. to 1500.degree. C. to make a sintered body having an average grain size not exceeding 0.7 micron.

Abstract: A light transmitting sintered body of cordierite has a composition equal or close to the stoichiometric composition of cordierite which is represented as 2MgO.2Al.sub.2 O.sub.3.5SiO.sub.2, consists mainly of a phase of cordierite crystals, and has a total transmittance of at least 20%. A method of preparing it is also disclosed.

Abstract: A method for coating the surface of inactive granules comprises dispersing inactive granules having water adsorbed in advance on the surface thereof in a solution having a higher fatty acid and a metal alkoxide dissolved in small amounts in a non-hydrophilic organic solvent thereby forming on the surface of the granules a dense layer of microfine metal oxide powder produced in consequence of hydrolysis of the metal alkoxide.