Abstract:
The invention relates to a method for producing coated nanoparticles which comprise a core holding at least one first substance and at least one envelope from at least one additional substance that at least partially surrounds the core, in a fluid system. The invention also relates to nanoparticles obtainable by said method, to nanoparticles comprising a non-porous core that holds at least one first substance, and at least one envelope from at least one additional substance that at least partially surrounds the core, the nanoparticles having a narrow particle-size distribution. The invention finally relates to the use of the nanoparticles in photocatalysis and to a device for carrying out the method.
Abstract:
The present invention relates to a coating material comprising (A) at least one binding agent as component (A) and (B) at least one photocatalytically active particle, comprising a core of at least one first material having a diameter of 0.1 to 1 µm and at least one shell at least partially encompassing the core and made of at least one second material having an average layer thickness of 0.1 to 10 nm as component (B).
Abstract:
Material de recubrimiento, que comprende (A) al menos un agente aglutinante a título de componente (A) y (B) al menos una partícula fotocatalíticamente activa, que comprende un núcleo no poroso, que contiene, al menos, un óxido metálico o un óxido semimetálico, con un diámetro comprendido entre 0,1 nm y 1 m y, al menos, una envoltura porosa, que rodea al núcleo, al menos en parte, que contiene, al menos, otro óxido metálico u otro óxido semimetálico con un espesor medio de capa comprendido entre 0,1 y 10 nm, a título de componente (B).
Abstract:
The present invention relates to a coating material comprising (A) at least one binding agent as component (A) and (B) at least one photocatalytically active particle, comprising a core of at least one first material having a diameter of 0.1 to 1 µm and at least one shell at least partially encompassing the core and made of at least one second material having an average layer thickness of 0.1 to 10 nm as component (B).
Abstract:
Electrode unit for an electrochemical device, comprising a solid electrolyte (3) and a porous electrode (7), wherein the solid electrolyte (3) separates a space for cathode material and a space for anode material and the porous electrode (7) is connected in surface-area contact to the solid electrolyte (3), wherein a displacer (23) is accommodated in the space for anode material, wherein the displacer (23) is produced from a high-grade steel or from graphite foil and comes to lie against the inner geometry of the solid electrolyte (3) in a resilient manner such that the displacer (23) does not contact the solid electrolyte over the full surface area, or wherein the displacer comprises an outer shell (62) made of high-grade steel or graphite and a core (64) made of a nonferrous metal, wherein the nonferrous metal is thermoplastically deformable at a temperature that is lower than the temperature at which the high-grade steel is thermoplastically deformable, and wherein, for production, the high-grade steel or graphite shell (62) is pressed against the solid electrolyte (3) by introducing and heating the nonferrous metal and, during cooling down, a gap forms between the solid electrolyte (3) and the high-grade steel shell (62).
Abstract:
The present invention relates to a coating material comprising (A) at least one binding agent as component (A) and (B) at least one photocatalytically active particle, comprising a core of at least one first material having a diameter of 0.1 to 1 µm and at least one shell at least partially encompassing the core and made of at least one second material having an average layer thickness of 0.1 to 10 nm as component (B).
Abstract:
Procedimiento para la fabricación de óxido de aluminio con bajo contenido de calcio, en el que (1) se mezcla óxido de aluminio alpha y/o gamma crudo con un contenido total de calcio en el intervalo de 50 a 2000 ppm, referido al óxido de aluminio alpha y/o gamma crudo, con una solución o suspensión acuosa que contiene los compuestos elegidos de entre el grupo de ácidos inorgánicos, ácidos orgánicos y formadores de complejos, (2) a la mezcla de la etapa (1) se añade un agente auxiliar de coagulación, (3) de la mezcla de la etapa (2) se separan el sólido del líquido, (4) se mezcla con agua el sólido, en presencia o ausencia de un agente auxiliar de coagulación, (5) de la mezcla de la etapa (4) se separa el sólido del líquido, (6) dado el caso se repiten las etapas (4) y (5) una vez o varias veces, (7) dado el caso se seca el sólido separado, dado el caso después de la adición de otros compuestos.