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  • 1 Korea University Department of Chemical and Biological Engineering 1, 5 Ga, Anam-Dong, Seongbuk-Gu Seoul 136-701 South Korea
  • 2 Korea University Research Institute of Clean Chemical Engineering Systems 1, 5 Ga, Anam-Dong, Seongbuk-Gu Seoul 136-701 South Korea
  • 3 Heesung Catalysts Corporation 507-1 Da, 1251-6, Jungwang-Dong Shiheung City, Kyungki-Do South Korea
  • 4 Jilin Institute of Chemical Technology Department of Environmental Science and Engineering Jilin 132022 China
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The performances of selective catalytic reduction (SCR) by CO/H2 over two Pd/TiO2/Al2O3 catalysts prepared from PdCl2 and Pd(NO3)2 precursors were compared. The catalytic activities (NOx conversion and N2 yield) were measured on these two catalysts. The catalytic properties of the prepared catalysts were studied by various characterization techniques such as BET, CO-chemisorption, TEM, XPS, and TPD. The Pd precursors influenced the Pd particle distribution, resulting in different catalytic activities.