[Nano-MnO(x) catalyst for the selective catalytic reduction of NO by NH3 in low-temperature].
Nanometer particles composed of manganese oxides (Nano-MnO(x)), which prepared by rheological phase reaction method, show superior low-temperature SCR activity for NO with NH3 in the presence of excess O2. In experiments, the NO conversion is 98.25% at 80 degrees C, and nearly 100% NO could be converted in 100 - 150 degrees C. Due to the reason of competing adsorption, H2O has a slight impact on the activity and the deactivation of SO2 is reversible. The experiments implied that the superior low-temperature catalytic activity of Nano-MnO(x) was mainly due to its high BET specific areas and poor crystallinity.
Tang
Xiao-Long
XL
Institute for Chemical Physics, Beijing Institute of Technology, Beijing 100081, China.
Hao
Ji-Ming
JM
Xu
Wen-Guo
WG
Li
Jun-Hua
JH
D000641:Ammonia / Q000737:chemistry*; D002384:Catalysis; D003080:Cold Temperature; D017895:Manganese Compounds / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D009569:Nitric Oxide / Q000737:chemistry*; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry*
D017895:Manganese Compounds; D010087:Oxides; D009569:Nitric Oxide; C027424:manganese oxide; D000641:Ammonia