公开(公告)号：WO2009105886A1

公开(公告)日：2009-09-03

申请号：PCT/CA2009/000236

申请日：2009-02-25

Applicant: National Research Council of Canada ,  BERGHAUS, Jorg, Oberste ,  LEGOUX, Jean-Gabriel ,  MOREAU, Christian ,  HUI, Shiqiang (Rob)

Inventor： BERGHAUS, Jorg, Oberste ,  LEGOUX, Jean-Gabriel ,  MOREAU, Christian ,  HUI, Shiqiang (Rob)

IPC: C23C18/08 ,  H01M4/88 ,  H01M8/10 ,  B01D1/16 ,  B05D1/02 ,  B05D1/04 ,  B05D1/06 ,  B05D1/08 ,  B05D1/10 ,  B05D3/08 ,  B05D5/12 ,  B22F9/16 ,  B22F9/18 ,  B22F9/24 ,  B01J2/02 ,  B01J23/10 ,  C01B13/34 ,  C01F17/00 ,  C23C4/04 ,  C23C4/10 ,  C23C4/12 ,  H01B1/06 ,  H01B1/08 ,  H01M4/86 ,  H01M4/04 ,  H01M8/12

CPC classification number: C01F17/0043 ,  C23C4/11 ,  C23C4/123 ,  H01M8/1213 ,  H01M8/126 ,  H01M2008/1293 ,  Y02E60/525 ,  Y02P70/56

Abstract: It has been surprisingly found that injecting ceria-based particles (mean size less than 200nm) suspended in a combustible organic solvent into a plume having a maximum temperature between about 2,600°C and 4,000°C to impart a mean temperature to the particles from about 2,600°C to about 3,800°C, and to accelerate the particles to a mean velocity between about 600 to 1000 m/s, produces a thin, uniform, dense, crack-free, nanocrystalline ceria-based coating, which may be applied on porous cermet or metal substrate, for example. The physical environment of a high-velocity oxy-fuel (HVOF) thermal spraying gun suitably deployed using standard fuels produces these conditions. The method of the present invention is particularly useful for the cost-effective fabrication of ceria-containing electrolytes for solid oxide fuel cells (SOFCs).

Abstract translation: 已经令人惊奇地发现，将悬浮在可燃有机溶剂中的二氧化铈基颗粒（平均尺寸小于200nm）注入到最高温度在约2600℃和4,000℃之间的羽流中，以使颗粒的平均温度从约 2600°C至约3800°C，并将颗粒加速至约600至1000 m / s之间的平均速度，产生薄而均匀，致密，无裂纹的纳米晶体二氧化铈基涂层，其可应用于 多孔金属陶瓷或金属基材。 使用标准燃料适当部署的高速氧燃料（HVOF）热喷枪的物理环境产生这些条件。 本发明的方法对于用于固体氧化物燃料电池（SOFC）的含铈铈的电解质的成本有效的制造特别有用。