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http://dx.doi.org/10.7464/ksct.2012.18.3.259

Catalytic Combustion of Benzene over Perovskite-type Oxides Prepared Using Malic Acid Method  

Jung, Won-Young (Department of Chemical Engineering, Pukyong National University)
Hong, Seong-Soo (Department of Chemical Engineering, Pukyong National University)
Publication Information
Clean Technology / v.18, no.3, 2012 , pp. 259-264 More about this Journal
Abstract
Perovskite-type oxides were successfully prepared using malic acid method, characterized by TG/DTA, XRD, XPS, TEM and $H_2$-TPR and their catalytic activities for the combustion of benzene were determined. Almost of catalyst showed perovskite crystalline phase and 15-70 nm particle size. The $LaMnO_3$ catalysts showed the highest activity and the conversion reaches almost 100% at $350^{\circ}C$. The catalysts were modified to enhance the activity through substitution of metal into the A or B site of the perovskite oxides. In the $LaMnO_3$-type catalyst, the partial substitution of Sr into site the A-site enhanced the catalytic activity in the benzene combustion. In addition, the partial substitution of Co or Cu into site the B-site also enhanced the catalytic activity and the catalytic activity was in the order of Co > Cu > Fe in the $LaMn_{1-x}B_xO_3$ (B = Co, Fe, Cu) type catalyst.
Keywords
Catalytic combustion of benzene; Perovskite-type oxides; Malic acid method;
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