Topic
Selective catalytic reduction
About: Selective catalytic reduction is a research topic. Over the lifetime, 10502 publications have been published within this topic receiving 226291 citations.
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TL;DR: A series of Pt and Pt,Cu supported catalysts were prepared by wet impregnation of Mg-Al supports obtained from hydrotalcite-type (HT) precursor compounds as mentioned in this paper.
77 citations
TL;DR: In this article, the authors provide ab initio calculations based on cluster and periodic models to analyze the adsorption of the reactants in reduced, oxidized and stoichiometric surfaces, assuming dry and wet conditions.
77 citations
TL;DR: In this article, a novel phenomenon was discovered that N2O selectivity of NO reduction over MnOx/TiO2 was related to the concentration of gaseous NO.
77 citations
TL;DR: A tube-shaped Mn-Ni-Ti solid solution for the selective catalytic reduction of NO x with NH 3 (NH 3 -SCR) through a facile self-templated urea-homogeneous precipitation method was presented in this paper.
Abstract: We present a tube-shaped Mn-Ni-Ti solid solution for the selective catalytic reduction of NO x with NH 3 (NH 3 -SCR) through a facile self-templated urea-homogeneous precipitation method, which leads to the fine dispersion of the MnO x and NiO x active species in the TiO 2 lattice. The ratio of Mn/Ni/Ti is an important factor to affect the crystallinity of Mn-Ni-Ti solid sulotion, and the catalyst with a Mn/Ni/Ti ratio of 2/3/5 (Mn2-Ni3) exhibits the significant structure distortion. The abundant surface defects induce more generation of Mn 4+ species, surface adsorbed oxygen and Lewis acid sites, and acclerate the adsorption and activation of NO molecules. The appropriate Mn/Ni ratio inhibits the competitive adsorption of NH 3 with NO, and facilitates the Langmuir-Hinshelwood (L-H) mechanism to form N 2 , which acts as a much more rapid pathway in comparison to the parallel one following Eley-Rideal (E-R) mechanism. The readily occurence of L-H mechanism significantly improves the SCR performance of catalyst.
77 citations
TL;DR: The selective catalytic reduction (SCR) characteristics of NO and NO(2) over V (2)O(5)-WO(3)-MnO(2)/TiO( 2) catalyst using ammonia as a reducing agent have been determined in a fixed-bed reactor at 200-400 degrees C.
77 citations