Abstract: The present disclosure provides systems and methods for processing ammonia. The system may comprise one or more reactor modules configured to generate hydrogen from a source material comprising ammonia. The hydrogen generated by the one or more reactor modules may be used to provide additional heating of the reactor modules (e.g., via combustion of the hydrogen), or may be provided to one or more fuel cells for the generation of electrical energy.

Abstract: A lens, wherein a first profile in a first direction intersecting an optical axis and a second profile in a second direction intersecting the optical axis are different from each other, and a length of the first profile in the first direction is different from a length of the second profile in the second direction.

Abstract: The present disclosure provides systems and methods for processing ammonia. The system may comprise one or more reactor modules configured to generate hydrogen from a source material comprising ammonia. The hydrogen generated by the one or more reactor modules may be used to provide additional heating of the reactor modules (e.g., via combustion of the hydrogen), or may be provided to one or more fuel cells for the generation of electrical energy.

Abstract: The present disclosure provides systems and methods for processing ammonia. The system may comprise one or more reactor modules configured to generate hydrogen from a source material comprising ammonia. The hydrogen generated by the one or more reactor modules may be used to provide additional heating of the reactor modules (e.g., via combustion of the hydrogen), or may be provided to one or more fuel cells for the generation of electrical energy.

Abstract: The present disclosure provides systems and methods for processing ammonia. A heater may heat reformers, where the reformers comprise ammonia (NH3) reforming catalysts in thermal communication with the heater. NH3 may be directed to the reformers from storage tanks, and the NH3 may be decomposed to generate a reformate stream comprising hydrogen (H2) and nitrogen (N2). At least part of the reformate stream can be used to heat reformers. Additionally, the reformate stream can be directed to a hydrogen processing module such as a fuel cell.

Abstract: The present disclosure provides a catalyst, methods of manufacturing the catalyst, and methods for using the catalyst for ammonia decomposition to produce hydrogen and nitrogen. The catalyst may comprise an electrically conductive support with a layer of one or more metal oxides adjacent to the support and at least one active metal adjacent to the layer. Methods are disclosed for deposition of metal oxide and active metal, drying and heat treatment. The method of using the catalyst may comprise bringing ammonia in contact with the catalyst in a reactor. The catalyst may be configured to be heated to a target temperature in less than about 60 minutes, by passing an electrical current through the catalyst. The method of using the catalyst may comprise bringing the catalyst in contact with ammonia at about 400 to 900° C., to generate a reformate stream with a conversion efficiency of greater than about 70%.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens including a concave object side surface, a fourth lens, a fifth lens, and a sixth lens sequentially disposed from an object side toward an image side. The optical imaging system satisfies 0.7<TL/f<1.0 and F No.<2.1, where TL is a distance from an object side of the first lens to an imaging plane, f is a total focal length of the optical imaging system, and F No. is the F No. of the optical imaging system.

Abstract: The present disclosure provides systems and methods for processing ammonia. A heater may heat reformers, where the reformers comprise ammonia (NH3) reforming catalysts in thermal communication with the heater. NH3 may be directed to the reformers from storage tanks, and the NH3 may be decomposed to generate a reformate stream comprising hydrogen (H2) and nitrogen (N2). At least part of the reformate stream can be used to heat reformers. Additionally, the reformate stream can be directed to a hydrogen processing module such as a fuel cell.

Abstract: A lens assembly includes a lens barrel, a plurality of lenses arranged inside the lens barrel along an optical axis, and a cover member fixed to an end of the lens barrel on a subject side and fixing a last lens of the plurality of lenses on the subject side, wherein outer diameters of the plurality of lenses decrease from the subject side to an image side, and an outer diameter of the lens barrel is constant or smaller from the subject side to the image side.

Abstract: A display device and a method of manufacturing the same are provided. The display device, comprises a first base substrate, a first barrier layer disposed on the first base substrate, a second base substrate disposed on the first barrier layer, at least one transistor disposed on the second base substrate, and an organic light emitting diode disposed on the at least one transistor, wherein the first barrier layer includes a silicon oxide, and has an adhesion force of 200 gf/inch or more to the second base substrate.

Abstract: An optical imaging system is provided. The optical imaging system has a first lens, a second lens, a third lens, and a fourth lens disposed in order from an object-side to an image-side. The optical imaging system satisfies the following conditional expressions: F No.?1.5, 0.5<EPD/TTL<0.7, where EPD is an entrance pupil diameter, and TTL is a distance from an object-side surface of the first lens to an imaging plane.

Abstract: A lens, wherein a first profile in a first direction intersecting an optical axis and a second profile in a second direction intersecting the optical axis are different from each other, and a length of the first profile in the first direction is different from a length of the second profile in the second direction.

Abstract: The present disclosure provides methods for fabricating catalysts for ammonia decomposition. The method may comprise (a) subjecting a catalyst support to one or more physical or chemical processes to optimize one or more pores, morphologies, and/or surface chemistry or property of the catalyst support; (b) depositing a composite support material on the catalyst support, wherein the composite support material comprises a morphology or surface chemistry or property; and (c) depositing one or more active metals on at least one of the composite support material and the catalyst support, wherein the one or more active metals comprise one or more nanoparticles configured to conform to the morphology of the composite support material and/or catalyst support material, thereby optimizing one or more active sites on the nanoparticles for ammonia processing.

Abstract: The present disclosure provides systems and methods for processing ammonia. A heater may heat reformers, where the reformers comprise ammonia (NH3) reforming catalysts in thermal communication with the heater. NH3 may be directed to the reformers from storage tanks, and the NH3 may be decomposed to generate a reformate stream comprising hydrogen (H2) and nitrogen (N2). At least part of the reformate stream can be used to heat reformers. Additionally, the reformate stream can be directed to a hydrogen processing module such as a fuel cell.

Abstract: A method for ammonia decomposition is disclosed. The method may comprise providing a catalyst comprising an alumina support and a layer adjacent to the support. The layer comprises a perovskite phase comprising aluminum, cerium, and lanthanum, an oxide of at least one of an alkali metal and a rare earth metal, and an active metal. The method may comprise bringing the catalyst in contact with ammonia at a temperature of from about 400° C. to 700° C. to generate a reformate stream comprising hydrogen and nitrogen at an ammonia conversion efficiency of at least about 70%. The method may further comprise directing the hydrogen to a fuel cell to generate electricity. The method may further comprise generating heat for a reformer comprising the catalyst by combustion of gases or by electricity generated from hydrogen.

Abstract: The present disclosure provides a fuel cell, comprising: an anode; a cathode; and a membrane electrode assembly disposed between the anode and the cathode. The anode may comprise a gas diffusion layer with one or more channels for directing a source material through the gas diffusion layer of the anode to facilitate processing of the source material to generate an electrical current. The one or more channels may comprise one or more features configured to enhance a diffusion of the source material through the gas diffusion layer of the anode. The source material may comprise hydrogen and nitrogen.

Abstract: The present disclosure provides systems and methods for processing ammonia. A heater may heat reformers, where the reformers comprise ammonia (NH3) reforming catalysts in thermal communication with the heater. NH3 may be directed to the reformers from storage tanks, and the NH3 may be decomposed to generate a reformate stream comprising hydrogen (H2) and nitrogen (N2). At least part of the reformate stream can be used to heat reformers. Additionally, the reformate stream can be directed to a hydrogen processing module such as a fuel cell.

Abstract: The present disclosure provides systems and methods for processing ammonia. The system may comprise one or more reactor modules configured to generate hydrogen from a source material comprising ammonia. The hydrogen generated by the one or more reactor modules may be used to provide additional heating of the reactor modules (e.g., via combustion of the hydrogen), or may be provided to one or more fuel cells for the generation of electrical energy.

Abstract: The present disclosure provides systems and methods for processing ammonia. The system may comprise one or more reactor modules configured to generate hydrogen from a source material comprising ammonia. The hydrogen generated by the one or more reactor modules may be used to provide additional heating of the reactor modules (e.g., via combustion of the hydrogen), or may be provided to one or more fuel cells for the generation of electrical energy.

Abstract: The present disclosure provides systems and methods for processing ammonia. A heater may heat reformers, where the reformers comprise ammonia (NH3) reforming catalysts in thermal communication with the heater. NH3 may be directed to the reformers from storage tanks, and the NH3 may be decomposed to generate a reformate stream comprising hydrogen (H2) and nitrogen (N2). At least part of the reformate stream can be used to heat reformers. Additionally, the reformate stream can be directed to a hydrogen processing module such as a fuel cell.