The capability of theoretical durability studies to offer an efficient alternative methodology for predicting the potential performance of catalysts has improved in recent years. In this regard, multi-scale theoretical methods for predicting sintering behavior of Pt on various catalyst supports are being developed. Various types of Pt diffusions depending on support were confirmed by the micro-scale ultra accelerated quantum chemical molecular dynamics (UA-QCMD) method. Moreover, macro-scale sintering behavior of Pt/\u0263-Al 2 O 3 , Pt/ZrO 2 and Pt/CeO 2 catalyst were studied using a developed 3D sintering simulator. Experimental results were well reproduced. While Pt on \u0263-Al 2 O 3 sintered significantly, Pt on ZrO 2 sintered slightly and Pt on CeO 2 demonstrated the highest stability against sintering.
| SAE International | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | 2009-01-2821 |
| Product Name | Multi-scale Theoretical Study of Sintering Dynamics of Pt for Automotive Catalyst |
