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http://dx.doi.org/10.14478/ace.2013.1057

Characterization of Low Temperature Selective Catalytic Reduction over Ti Added Mn-Cu Metal Oxides  

Lee, Hyun Hee (Department of Environmental Energy Systems Engineering, Graduate School of Kyonggi University)
Park, Kwang Hee (R&D Center, Alantum Corp.)
Cha, Wang Seog (Department of Environmental Engineering, University of Kunsan)
Publication Information
Applied Chemistry for Engineering / v.24, no.6, 2013 , pp. 599-604 More about this Journal
Abstract
In this study, Ti added Mn-Cu mixed oxide catalysts were prepared by a co-precipitation method and used for the low temperature (< $200^{\circ}C$) selective catalytic reduction (SCR) of NOx with $NH_3$. Physicochemical properties of these catalysts were characterized by BET, XRD, XPS, and TPD. Mn-Cu mixed oxide catalysts were found to be amorphous with a large surface and they showed high SCR activity. Experimental results showed that the addition of $TiO_2$ to Mn-Cu oxide enhanced the SCR activity and $N_2$ selectivity. Ti addition led to the chemically adsorbed oxygen species that promoted the oxidation of NO to $NO_2$ and increased the number of $NH_3$ adsorbed-sites such as $Mn^{3+}$.
Keywords
selective catalytic reduction; Cu-Mn mixed oxide; $TiO_2$; $NH_3$;
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