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http://dx.doi.org/10.9713/kcer.2018.56.3.349

Effects of Concentration of Precipitants and Aging Time on Synthesis of Mn-Substituted Barium Hexaaluminates by Homogeneous Precipitation  

Park, Ji Yun (Graduate School of Energy Science and Technology, Chungnam National University)
Jung, You Shick (GN TNS Co., Ltd.)
Rhee, Young Woo (Graduate School of Energy Science and Technology, Chungnam National University)
Publication Information
Korean Chemical Engineering Research / v.56, no.3, 2018 , pp. 349-355 More about this Journal
Abstract
$BaMnAl_{11}O_{19}$ was prepared by urea-induced homogeneous precipitation and characterized by X-ray diffraction and scanning electron microscopy. At increased precipitant concentrations, AlOOH replaced $Al(OH)_3$ as an Al precursor. $BaMnAl_{11}O_{19}$ exhibited enhanced catalytic combustion performance and inhibited CO generation. Catalytic performance was also enhanced by the presence of $BaAl_2O_4$ and $BaMnAl_{11}O_{19}$. Compared to $BaAl_2O_4$, $BaMnAl_{11}O_{19}$ exhibited superior catalytic combustion activity.
Keywords
Catalytic combustion; Combustion catalyst; Homogeneous precipitation; Hexaaluminate; $BaMnAl_{11}O_{19}$;
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