Development of Tailored Porous Microstructures for Infiltrated Catalyst Electrodes by Aqueous Tape Casting Methods
Development of Tailored Porous Microstructures for Infiltrated Catalyst Electrodes by Aqueous Tape Casting Methods
复制标题
通过水流带铸造方法开发用于渗透催化剂电极的定制多孔微结构
DOI：
10.1149/06801.2047ecst
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
Cassidy M
中科院分区：
文献类型：
--
作者：
Cassidy M
最近的SOFC研究表明，将精细的催化剂结构浸渍到多孔支架中是开发电极的一条非常有前途的途径。显然，在优化这项技术提供的优势时，多孔支架的形态和渗透的催化剂之间将存在明显的联系。使用水体系制造支架具有显著的潜在好处。它们包括可能产生更大范围的造孔剂，可用于创造特定的孔形态，还可以减少环境负担，如废气处理、工人暴露和处置。将介绍圣安德鲁斯大学最近和正在进行的开发这类系统的活动。讨论的领域包括陶瓷颗粒大小、造孔剂与陶瓷颗粒的尺寸比、造孔器类型和装载量，以及这些因素如何与其他带材成分相互作用，影响加工过程中的行为和最终的烧成形态。更好地理解这些复杂的关系将有助于在未来设计优化的多孔结构。
Recent SOFC research has shown that impregnating fine catalyst structures into porous scaffolds to be an extremely promising route for electrode development. It is clear that in optimising the advantages offered by this technique there will be an obvious link between the morphology of the porous scaffold and the infiltrated catalyst. There are significant potential benefits to using aqueous systems for the manufacture of the scaffold. They include the potential for a far larger range of pore formers which may be employed to create specific pore morphologies and also reduced environmental burdens, such as exhaust handling, worker exposure and disposal. Recent and ongoing activities to develop such systems at University of St Andrews will be described. Areas of discussion will be effects of ceramic particle size, the size ratio of pore former to ceramic particle, pore former type and loading and how these interact with other tape constituents both on the behaviour during processing and on the final fired morphology. Better understanding of these complex relationships will help in designing optimised porous structures in the future.