Novel Mn-Ce-Ti Mixed-Oxide Catalyst for the Selective Catalytic Reduction of NOx with NH3

Cited 249 time in webofscience Cited 0 time in scopus
  • Hit : 206
  • Download : 0
Mn-Ce-Ti mixed-oxide catalyst prepared by the hydrothermal method was investigated for the selective catalytic reduction (SCR) of NOx with NH3 in the presence of oxygen. It was found that the environmentally benign Mn-Ce-Ti catalyst exhibited excellent NH3-SCR activity and strong resistance against H2O and SO2 with a broad operation temperature window, which is very competitive for the practical application in controlling the NOx emission from diesel engines. On the basis of the catalyst characterization, the dual redox cycles (Mn4+ + Ce3+<-> Mn3+ + Ce4+, Mn4+ + Ti3+ <-> Mn3+ + Ti4+) and the amorphous structure play key roles for the high catalytic deNO(x) performance. Diffuse reflectance infrared Fourier transform spectroscopy studies showed that the synergetic effect between Mn and Ce contributes to the formation of reactive intermediate species, thus promoting the NH3-SCR to proceed.
Publisher
AMER CHEMICAL SOC
Issue Date
2014-08
Language
English
Article Type
Article
Keywords

LOW-TEMPERATURE; NITRIC-OXIDE; MANGANESE OXIDES; DIESEL EXHAUST; SCR CATALYSTS; ACTIVE-SITES; FT-IR; AMMONIA; TITANIA; CR

Citation

ACS APPLIED MATERIALS &amp; INTERFACES, v.6, no.16, pp.14500 - 14508

ISSN
1944-8244
DOI
10.1021/am5038164
URI
http://hdl.handle.net/10203/193841
Appears in Collection
CBE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 249 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0