Rate-Sensitive Experimental Catalytic Combustion Studies in Multicomponent Gas Environments

摘要9634922 Glumac 拟议的调查的目标是生成一个基准实验数据集的充分表征的催化流，其中全面的表面化学机制纯金属和合金催化剂可以细化和验证。 PI建议使用滞止流环境来创建多物种火焰后催化流场，在该流场中可以进行测量并与模型预测进行比较。 低压（~10-30托）和旋转基底都将用于增加气相物质向催化剂表面的传输，以实现与表面反应的强耦合。 激光诱导荧光（LIF）将被用来获得一组关键的反应物种，包括NO，CO，H，NO2和OH的空间浓度分布。 将研究纯金属无载体催化剂铂、钯和铑沿着以及合金和氧化物载体催化剂。 这种测量的组合将有助于建模者制定一个机制，有效的常用的多组分催化剂材料。

Abstract 9634922 Glumac The goal of the proposed investigation is to generate a benchmark experimental data set of fully characterized catalytic flows in which comprehensive surface chemistry mechanisms for pure metal and alloyed catalysts can be refined and validated. The PI proposes to use a stagnation flow environment to create a multispecies post-flame catalytic flow field in which measurements can be made and compared with model predictions. Both a low pressure (~10-30 Torr) and a rotating substrate will be used to increase transport of gas phase species to the catalyst surface in order to achieve strong coupling to surface reactions. Laser induced fluorescence (LIF) will be used to obtain the spatial concentration profiles of a set of key reactive species including NO, CO, H, NO2, and OH. The pure metal unsupported catalysts platinum, palladium, and rhodium along with the alloyed and oxide supported catalysts will be investigated. This combination of measurements will assist modelers in formulating a mechanism valid for commonly-used multicomponent catalyst materials.