摘要:
A solid oxide fuel cell (SOFC) includes a cathode electrode, an anode electrode, and a solid oxide electrolyte located between the anode electrode and the cathode electrode. The cathode electrode is a porous ceramic layer infiltrated with a cathode catalyst material, and the anode electrode is a porous ceramic layer infiltrated with an anode catalyst material, and the electrolyte is a ceramic layer having a lower porosity than the anode and the cathode electrodes. A ceramic reinforcing region may be located adjacent to the riser opening in the electrolyte.
摘要:
The present invention generally relates to conducting materials such as mixed ionically and electrically conducting materials. A variety of materials, material compositions, materials with advantageous ratios of ionically and electrically conducting components, structures including such materials, and the like are provided in accordance with the invention. In one aspect, the invention relates to conducting ceramics for electrochemical systems and, in particular, to mixed ionically and electrically conducting ceramics which can be used, for example, for electrochemical systems and, in particular, to mixed ionically and electrically conducting ceramics which can be used, for example, for hydrogen gas generation from a gasified hydrocarbon stream. One aspect of the invention provides a material comprising a first phase comprising a ceramic ionic conductor, and a second phase comprising a ceramic electrical conductor. An example of such a material is a material comprising ZrO2 doped with Sc2O3 and SrTiO3 doped with Y2O3. Another aspect of the invention provides systems and methods of hydrogen gas generation from a fuel, such as a carbonaceous fuel, using materials such as those described above, for example, present within a membrane in a reactor. In some embodiments, a substantially pure hydrogen stream may be generated through in situ electrolysis. In some cases, a material such as those described above may be used to facilitate ion and/or electron exchange between a first reaction involving a fuel such as a carbonaceous fuel, and a second reaction involving a water-hydrogen conversion reaction (i.e., where water is reduced to produce hydrogen gas). In other aspects, the invention provides systems and methods for producing power from a fuel source, such as a carbonaceous fuel source.
摘要:
A ceramic boron-containing dopant paste is disclosed. The ceramic boron-containing dopant paste further comprising a set of solvents, a set of ceramic particles dispersed in the set of solvents, a set of boron compound particles dispersed in the set of solvents, a set of binder molecules dissolved in the set of solvents. Wherein, the ceramic boron-containing dopant paste has a shear thinning power law index n between about 0.01 and about 1.
摘要:
The present invention generally relates to conducting materials such as mixed ionically and electrically conducting materials. A variety of materials, material compositions, materials with advantageous ratios of ionically and electrically conducting components, structures including such materials, and the like are provided in accordance with the invention. In one aspect, the invention relates to conducting ceramics for electrochemical systems and, in particular, to mixed ionically and electrically conducting ceramics which can be used, for example, for electrochemical systems and, in particular, to mixed ionically and electrically conducting ceramics which can be used, for example, for hydrogen gas generation from a gasified hydrocarbon stream. One aspect of the invention provides a material comprising a first phase comprising a ceramic ionic conductor, and a second phase comprising a ceramic electrical conductor. An example of such a material is a material comprising ZrO2 doped with Sc2O3 and SrTiO3 doped with Y2O3. Another aspect of the invention provides systems and methods of hydrogen gas generation from a fuel, such as a carbonaceous fuel, using materials such as those described above, for example, present within a membrane in a reactor. In some embodiments, a substantially pure hydrogen stream may be generated through in situ electrolysis. In some cases, a material such as those described above may be used to facilitate ion and/or electron exchange between a first reaction involving a fuel such as a carbonaceous fuel, and a second reaction involving a water-hydrogen conversion reaction (i.e., where water is reduced to produce hydrogen gas). In other aspects, the invention provides systems and methods for producing power from a fuel source, such as a carbonaceous fuel source.
摘要:
A solid oxide fuel cell (SOFC) includes a cathode electrode, an anode electrode, and a solid oxide electrolyte located between the anode electrode and the cathode electrode. The cathode electrode is a porous ceramic layer infiltrated with a cathode catalyst material, and the anode electrode is a porous ceramic layer infiltrated with an anode catalyst material, and the electrolyte is a ceramic layer having a lower porosity than the anode and the cathode electrodes. A ceramic reinforcing region may be located adjacent to the riser opening in the electrolyte.
摘要:
A solid oxide fuel cell (SOFC) includes a cathode electrode, an anode electrode, and a solid oxide electrolyte located between the anode electrode and the cathode electrode. The cathode electrode is a porous ceramic layer infiltrated with a cathode catalyst material, and the anode electrode is a porous ceramic layer infiltrated with an anode catalyst material, and the electrolyte is a ceramic layer having a lower porosity than the anode and the cathode electrodes. A ceramic reinforcing region may be located adjacent to the riser opening in the electrolyte.
摘要:
A ceramic boron-containing dopant paste is disclosed. The ceramic boron-containing dopant paste further comprising a set of solvents, a set of ceramic particles dispersed in the set of solvents, a set of boron compound particles dispersed in the set of solvents, a set of binder molecules dissolved in the set of solvents. Wherein, the ceramic boron-containing dopant paste has a shear thinning power law index n between about 0.01 and about 1.
摘要:
A method for manufacturing a photovoltaic cell with a locally diffused rear side, comprising steps of: (a) providing a doped silicon substrate, the substrate comprising a front, sunward facing, surface and a rear surface; (b) forming a silicon dioxide layer on the front surface and the rear surface; (c) depositing a boron-containing doping paste on the rear surface in a pattern, the boron-containing paste comprising a boron compound and a solvent; (d) depositing a phosphorus-containing doping paste on the rear surface in a pattern, the phosphorus-containing doping paste comprising a phosphorus compound and a solvent; (e) heating the silicon substrate in an ambient to a first temperature and for a first time period in order to locally diffuse boron and phosphorus into the rear surface of the silicon substrate.
摘要:
The present invention generally relates to conducting materials such as mixed ionically and electrically conducting materials. A variety of materials, material compositions, materials with advantageous ratios of ionically and electrically conducting components, structures including such materials, and the like are provided in accordance with the invention. In one aspect, the invention relates to conducting ceramics for electrochemical systems and, in particular, to mixed ionically and electrically conducting ceramics which can be used, for example, for electrochemical systems and, in particular, to mixed ionically and electrically conducting ceramics which can be used, for example, for hydrogen gas generation from a gasified hydrocarbon stream. One aspect of the invention provides a material comprising a first phase comprising a ceramic ionic conductor, and a second phase comprising a ceramic electrical conductor. An example of such a material is a material comprising ZrO2 doped with Sc2O3 and SrTiO3 doped with Y2O3. Another aspect of the invention provides systems and methods of hydrogen gas generation from a fuel, such as a carbonaceous fuel, using materials such as those described above, for example, present within a membrane in a reactor. In some embodiments, a substantially pure hydrogen stream may be generated through in situ electrolysis. In some cases, a material such as those described above may be used to facilitate ion and/or electron exchange between a first reaction involving a fuel such as a carbonaceous fuel, and a second reaction involving a water-hydrogen conversion reaction (i.e., where water is reduced to produce hydrogen gas). In other aspects, the invention provides systems and methods for producing power from a fuel source, such as a carbonaceous fuel source.
摘要:
A method for manufacturing a photovoltaic cell with a locally diffused rear side, comprising steps of: (a) providing a doped silicon substrate, the substrate comprising a front, sunward facing, surface and a rear surface; (b) forming a silicon dioxide layer on the front surface and the rear surface; (c) depositing a boron-containing doping paste on the rear surface in a pattern, the boron-containing paste comprising a boron compound and a solvent; (d) depositing a phosphorus-containing doping paste on the rear surface in a pattern, the phosphorus-containing doping paste comprising a phosphorus compound and a solvent; (e) heating the silicon substrate in an ambient to a first temperature and for a first time period in order to locally diffuse boron and phosphorus into the rear surface of the silicon substrate.