VOCs 산화반응에서 Pt 촉매에 대한 조촉매의 영향
Effect of promoter on platinu, catalyst for oxidation of VOCs
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Abstract
The volatile organic compounds(VOCs) have been recognized as a major contributor to air pollution.at low temperature. In this study, monometallic Pt and bimetalic Pt-Ru, Pt-Ir were supported to γ-Al2O3. Xylene,toluene and MEK were used as reactants. The monometallic or bimetallic catalysts were prepared by the excesswetness impregnation method and were characterized by XRD, XPS, TEM and BET analysis. As a result, Pt-Ru, Pt-Ir bimetallic catalysts showed higher conversion than Pt monometallic catalyst. Pt-Ir bimetallic catalystshowed the highest conversion on the γ-Al2O3 support. In the VOCs oxidation, Pt-Ru, Pt-Ir bimetallic catalysthad multipoint active sites, so it improved the range of Pt metal state. Therefore, bimetallic catalysts showedhigher conversion of VOCs than monometallic ones. In this study, the use of small amount of Ru, Ir to Ptpromoted oxidation conversion of VOCs.
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