Support Effect on the Storage and Sulfur-Resisting Performance of Lithium-Based NOx Trap Catalysts Pt/Li/TiO2-MOx (M=Al, Zr, Si, Sn)

摘要

Introduction The technique of lean-burn NOx trap (LNT) is one of the most attractive methods to purify nitrogen oxides from lean-burn engines. In present study, a series of lithium-based LNT catalysts Pt/Li/TiO2-MOx (M=Al, Zr, Si, Sn) were prepared, and the support effect on the performance of the catalysts is investigated carefully.