Performance of LaBO₃/HZSM-5 Catalysts for Eliminating Soot from Diesel Exhaust

Abstract:

The LaBO3/HZSM-5 samples were prepared by the impregnation method. The structure of catalysts was examined by XRD. The catalytic activity for the combustion of soot particulate was evaluated by a technique of the temperature-programmed reaction. In the LaBO3/HZSM-5 catalyst, the Mn as B-site ion, the catalyst was the good candidate catalyst for the soot catalytic combustion. In the LaMnO3/HZSM-5 catalyst, the catalytic activity was tunable by changing the metal components of the perovskite-type oxide at B-site, the Fe partial substitution for Mn of LaMnO3/HZSM-5 enhanced the catalytic activity, and the combustion temperature of soot particle was lower than LaMnO3/HZSM-5 sample without substitution, corresponding Tm of 401oC and the selectivity of CO2 77.0%.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 563-566
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.563
• Online since: January 2013
• Authors: Fu Chen Ding, Cui Tao Ren, Bin Li, Hong Wang, Cui Qing Li
• Keywords: Diesel Exhaust, HZSM-5, Perovskite-Type Complex Oxide, Soot

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