PREPARATION OF YTTRIA-STABILIZED ZIRCONIA REACTION SINTERED PRODUCTS
    2.
    发明申请
    PREPARATION OF YTTRIA-STABILIZED ZIRCONIA REACTION SINTERED PRODUCTS 审中-公开
    YTTRIA稳定的ZIRCONIA反应烧结产品的制备

    公开(公告)号:WO2008089037A3

    公开(公告)日:2008-11-20

    申请号:PCT/US2008050748

    申请日:2008-01-10

    IPC分类号: C04B35/486 H01M4/90 H01M8/12

    摘要: A method of making a solid electrolyte-YSZ product, where the method includes the step of providing a powdered mixture of zirconia, yttria and about 2%, by wt., or less of a metal oxide, where yttria-stabilized zirconia is not added to the mixture. The method also includes sintering the powdered mixture at about 1500°C or less, for about 5 hours or less, to form a reaction sintered YSZ. Also, a method of making a fuel cell electrolyte that includes the step of forming a green body that includes zirconia, yttria and about 2%, by wt., or less of a metal oxide, where yttria-stabilized zirconia is not added to the green body. The method also includes shaping the green body into a form of the electrolyte, and sintering the green body at about 1500°C or less to form a reaction sintered yttria-stabilized zirconia and metal oxide electrolyte.

    摘要翻译: 一种制备固体电解质YSZ产品的方法,其中该方法包括提供氧化锆,氧化钇和约2%(重量)或更少的金属氧化物粉末混合物的步骤,其中不加入氧化钇稳定的氧化锆 到混合物。 该方法还包括在约1500℃或更低温度下烧结约5小时或更少的粉末状混合物,以形成反应烧结的YSZ。 此外,制造燃料电池电解质的方法包括以下步骤:形成包括氧化钇,氧化钇和约2%(重量)以下的金属氧化物的生坯,其中不向其中加入氧化钇稳定的氧化锆 绿色的身体。 该方法还包括将生坯成形为电解质的形式,并在大约1500℃或更低温度下烧结生坯以形成反应烧结的氧化钇稳定的氧化锆和金属氧化物电解质。

    STEAM REFORMING OF SOLID CARBON IN PROTONIC CERAMIC FUEL CELLS
    5.
    发明申请
    STEAM REFORMING OF SOLID CARBON IN PROTONIC CERAMIC FUEL CELLS 审中-公开
    固体碳在原子能燃料电池中的蒸汽重整

    公开(公告)号:WO2005009893A2

    公开(公告)日:2005-02-03

    申请号:PCT/US2004023756

    申请日:2004-07-23

    发明人: COORS W GROVER

    摘要: A process for converting a carbon containing fuel and water vapor into a reformate gas that includes hydrogen, carbon monoxide and carbon dioxide, using water molecules that diffuse through a membrane by steam permeation reforming. The process includes providing a ceramic membrane comprising an oxide ceramic having intrinsic and extrinsic oxygen ion vacancies, and having first and second surfaces; where the oxide ceramic capable of reacting with gaseous water molecules at the first surface by the reversible reaction, H2O(g) + VOoo + OxO ? 2 OHoO; and the oxide ceramic capable of producing gaseous water molecules at the second surface by the reversible reaction, 2 OHoO ? H2O(g) + VOoo + OxO; contacting water vapor with the first surface; contacting the reformate gas with the second surface, whereby solid state ambipolar diffusion of oxygen ion vacancies and protons across the membrane occurs; and the ambipolar diffusion produces a net diffusion flux of water molecules through the membrane from the first surface to the second surface.

    摘要翻译: 使用通过蒸汽渗透重整扩散通过膜的水分子将含碳燃料和水蒸汽转化为包含氢气,一氧化碳和二氧化碳的重整气体的方法。 该方法包括提供包含具有固有和外在氧离子空位的氧化物陶瓷并具有第一和第二表面的陶瓷膜; 其中能够通过可逆反应在第一表面与气态水分子反应的氧化物陶瓷,H 2 O(g)+ VO 0 O + 2 OHOO; 以及能够通过可逆反应在第二表面产生气态水分子的氧化物陶瓷, H2O(g)+ VOoo + OxO; 使水蒸气与第一表面接触; 使重整气体与第二表面接触,由此产生氧离子空位和质子跨膜的固态双极扩散; 并且双极扩散产生水分子通过膜从第一表面到第二表面的净扩散通量。