| 초록 |
Nitrogen oxide(NOx) causes different types of environment pollution, including smog, acid rain, and fine particulate matter. Hence, NOx regulation has been continuously tightened because of the harmful effects of nitrogen oxide, as the necessity to develop de-NOx related technologies has emerged. In this study, we developed a catalyst that uses carbon monoxide(CO) as a reducing agent, instead of urea that is currently used in the NH3 selective catalytic reduction. Specifically, bimetallic catalysts were prepared through the co-impregnation of iridium and transition metals on alumina support. As a result, the Ir-Co catalyst showed more significant de-NOx performance than mere Ir and other Ir-based bimetallic catalysts. It was found that the highest de-NOx performance was obtained on an Ir-10 Co catalyst, where Co loading was 10 wt.%. |
