WaMn1 - aox Catalysts Synthesized by a One-Step Urea Co-precipitation Method for Selective Catalytic Reduction of NOx with NH3 at Low Temperatures
MetadataShow full item record
Selective catalytic reduction (SCR) of NOx with NH3 (NH3-SCR) at low temperatures is a promising technology for DeNOx (removal of NOx) as a result of its high NOx conversion, excellent selectivity, and broad application prospect. As a result of the remarkable activity under low temperature for SCR performance, Mn-based catalysts have attracted extensive attention. In this work, a series of WαMn1 – αOx (α = 0, 0.25, 0.33, 0.5, or 1) catalysts were synthesized by a one-step urea co-precipitation method and characterized by X-ray diffraction, Raman, X-ray photoelectron spectroscopy, thermogravimetric analysis, and scanning electron microscopy. Thereamong, the W0.33Mn0.66Ox catalyst showed the highest NH3-SCR activity within a broad temperature range of 230–470 °C. In addition, the active Mn and W species were in highly amorphous or poorly crystalline states. It was revealed that the interaction of W and Mn increased the chemistry oxygen content of the catalysts, thus enhancing the low-temperature SCR performance.
Showing items related by title, author, creator and subject.
Catalytic partial oxidation of propylene to acrolein: the catalyst structure, reaction mechanisms and kineticsFansuri, Hamzah (2005)Bismuth molybdates have long been known as active catalysts for selective oxidation of olefins. There are several phases of bismuth molybdates but only three of them are known to be active for partial oxidation of propylene ...
Bimetallic Ni-M (M?=?Co, Cu and Zn) supported on attapulgite as catalysts for hydrogen production from glycerol steam reformingWang, Y.; Chen, M.; Yang, Z.; Liang, T.; Liu, Shaomin; Zhou, Z.; Li, X. (2018)© 2017 Elsevier B.V. Monometallic Ni and bimetallic Ni-Co, Ni-Cu, and Ni-Zn catalysts supported on attapulgite (ATP) were prepared by chemical precipitation method and evaluated in the glycerol steam reforming (GSR) ...
Steam reforming of phenol-ethanol to produce hydrogen over bimetallic NiCu catalysts supported on sepioliteLiang, T.; Wang, Y.; Chen, M.; Yang, Z.; Liu, Shaomin; Zhou, Z.; Li, X. (2017)© 2017 Hydrogen Energy Publications LLC. A series of NiCu bimetallic catalysts supported on sepiolite (Ni x Cu y /SEP) were prepared by co-precipitation method. The all as-prepared catalysts were characterized by using ...