Improvement of NOx Storage-Reduction Catalyst 2007-01-1056
In order to enhance the catalytic performance of the NOx Storage-Reduction Catalyst (NSR Catalyst), the sulfur tolerance of the NSR catalyst was improved by developing new support and NOx storage materials. The support material was developed by nano-particle mixing of ZrO2-TiO2 and Al2O3 in order to increase the Al2O3-TiO2 interface and to prevent the ZrO2-TiO2 phase from sintering. A Ba-Ti oxide composite material was also developed as a new NOx storage material containing highly dispersed Ba. It was confirmed that the sulfur tolerance and activity of the developed NSR catalyst are superior to that of the conventional one.
Citation: Yazawa, Y., Watanabe, M., Takeuchi, M., Imagawa, H. et al., "Improvement of NOx Storage-Reduction Catalyst," SAE Technical Paper 2007-01-1056, 2007, https://doi.org/10.4271/2007-01-1056. Download Citation
