Nanofiber Alumina Supported Lean NOx Trap: Improved Sulfur Tolerance and NOx Reduction

作者：Pieta I S; Garcia Dieguez M; Larrubia M A; Alemany L J; Epling W S^*

来源：Topics in Catalysis, 2013, 56(1-8): 50-55.

DOI：10.1007/s11244-013-9928-1

• NOx storage
• Thermal durability
• Sulfur resistance
• Pt-Ba/Al2O3
• Pt-K/Al2O3

NOx uptake and S resistance performance was studied over Pt-Ba and Pt-K lean NOx trap (LNT) catalysts, supported on %26quot;standard%26quot; Al2O3 and a nanofibrous Al2O3. The activity study was accompanied by TEM, XRD and H-2 chemisorption characterization. The nanofibrous Al2O3-supported catalysts resulted in better performance. This included improved storage capacity, reduction efficiency during the regeneration phase, thermal stability and S-tolerance.

• 出版日期2013-5