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Coordinatively unsaturated Al3+ centers as binding sites for active catalyst phases of platinum on γ-Al2O3
Ja Hun Kwak, Jianzhi Hu, Donghai Mei, Cheol-Woo Yi, Do Heui Kim, Charles H. F. Peden, Lawrence F. Allard, Janos Szanyi
- Science, 325 (2009) 1670-1673
Characterization of surface and bulk nitrates of γ-Al 2O 3-supported alkaline earth oxides using density functional theory
Donghai Mei, Qingfeng Ge, Ja Hun Kwak, Do Heui Kim, Christelle Verrier, Janos Szanyi, Charles H. F. Peden
- Physical Chemistry Chemical Physics, 11 (2009) 3380-3389
Effects of sulfation level on the Desulfation behavior of presulfated Pt-BaO/Al2O3 lean NOx trap catalysts: A combined H2 TPRX, in situ sulfur K-edge XANES, XPS, and time-resolved XRD study
Do Heui Kim, Janos Szanyi, Ja Hun Kwak, Xianqin Wang, Jonathan C. Hanson, Mark Engelhard, Charles H. F. Peden
- Journal of Physical Chemistry C, 113 (2009) 7336-7341
Metallic phases of cobalt-based catalysts in ethanol steam reforming: The effect of cerium oxide
Sean S.-Y. Lin, Do Heui Kim, Su Y. Ha
- Applied Catalysis A: General, 355 (2009) 69-77
Understanding the nature of surface nitrates in BaO/γ-Al2O3 NOx storage materials: A combined experimental and theoretical study
Ja Hun Kwak, Donghai Mei, Cheol-Woo Yi, Do Heui Kim, Charles H.F. Peden, Lawrence F. Allard, János Szanyi
- Journal of Catalysis, 261 (2009) 17-22
Excellent sulfur resistance of Pt/BaO/CeO2 lean NOx trap catalysts
Ja Hun Kwak, Do Heui Kim, János Szanyi, Charles H.F. Peden
- Applied Catalysis B: Environmental, 84 (2008) 545-551
Adsorption and formation of BaO overlayers on γ-Al2O 3 surfaces
Donghai Mei, Qingfeng Ge, Ja Hun Kwak, Do Heui Kim, János Szanyi, Charles H. F. Peden
- Journal of Physical Chemistry C, 112 (2008) 18050-18060
Promotional effects of H2O treatment on NO x storage over fresh and thermally aged Pt-BaO/Al2O3 Lean NO x trap catalysts
Do Heui Kim, Ya-Huei Chin, Ja Hun Kwak, Charles H. F. Peden
- Catalysis Letters, 124 (2008) 39-45
Sequential high temperature reduction, low temperature hydrolysis for the regeneration of sulfated NOx trap catalysts
Do Heui Kim, Ja Hun Kwak, Xianqin Wang, Janos Szanyi, Charles H.F. Peden
- Catalysis Today, 136 (2008) 183-187
NOx uptake on alkaline earth oxides (BaO, MgO, CaO and SrO) supported on γ-Al2O3
Christelle Verrier, Ja Hun Kwak, Do Heui Kim, Charles H.F. Peden, János Szanyi
- Catalysis Today, 136 (2008) 121-127
