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(100) facets of gamma-Al2O3: The Active Surfaces for Alcohol Dehydration Reactions File

Kwak, Jahun , Mei, Donghai , Peden, Charles H. F. , Rousseau, Roger , Szanyi, Janos

Article Issue Date2011-05 View27

A common intermediate for N2 formation in enzymes and zeolites: Side-On Cu-nitrosyl complexes File

Kwak, Jahun , Lee, Jong H. , Burton, Sarah D. , Lipton, Andrew S. , Peden, Charles H. F. , Szanyi, Janos

Article Issue Date2013-09 View16

A large sample volume magic angle spinning nuclear magnetic resonance probe for in situ investigations with constant flow of reactants File

Hu, Jian Zhi , Sears, Jesse A. , Mehta, Hardeep S. , Ford, Joseph J. , Kwak, Jahun , Zhu, Kake , Wang, Yong , Liu, Jun , Hoyt, David W. , Peden, Charles H. F.

Article Issue Date2012-02 View6

Adsorption and Formation of BaO Overlayers on gamma-Al2O3 Surfaces File

Mei, Donghai , Ge, Qingfeng , Kwak, Jahun , Kim, Do Heui , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2008-11 View15

An isotropic chemical shift-chemical shift anisotropic correlation experiment using discrete magic angle turning File

Hu, Jian Zhi , Sears, Jesse A. , Kwak, Jahun , Hoyt, David W. , Wang, Yong , Peden, Charles H. F.

Article Issue Date2009-05 View13

Catalyst size and morphological effects on the interaction of NO2 with BaO/gamma-Al2O3 materials File

Mei, Donghai , Kwak, Jahun , Szanyi, Janos , Ge, Qingfeng , Peden, Charles H. F.

Article Issue Date2010-06 View13

Cation Movements during Dehydration and NO2 Desorption in a Ba-Y,FAU Zeolite: An in Situ Time-Resolved X-ray Diffraction Study File

Wang, Xianqin , Hanson, Jonathan C. , Kwak, Jahun , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2013-02 View11

Changing morphology of BaO/Al2O3 during NO2 uptake and release File

Szanyi, Ja´nos , Kwak, Jahun , Hanson, Jonathan , Wang, Chongmin , Szailer, Tama´s , Peden, Charles H. F.

Article Issue Date2005-04 View16

Characteristics of Desulfation Behavior for Presulfated Pt-BaO/CeO2 Lean NOx Trap Catalyst: The Role of the CeO2 Support File

Kim, Do Heui , Kwak, Jahun , Szanyi, Janos , Wang, Xianqin , Li, Guosheng , Hanson, Jonathan C. , Peden, Charles H. F.

Article Issue Date2009-12 View15

Characteristics of Pt-K/MgAl2O4 lean NOx trap catalysts File

Kim, Do Heui , Mudiyanselage, K. , Szanyi, J. , Zhu, H. , Kwak, Jahun , Peden, Charles H. F.

Article Issue Date2012-04 View11

Characterization of Cu-SSZ-13 NH3 SCR catalysts: an in situ FTIR study File

Szanyi, Janos , Kwak, Jahun , Zhu, Haiyang , Peden, Charles H. F.

Article Issue Date2013-02 View10

Characterization of Dispersed Heteropoly Acid on Mesoporous Zeolite Using Solid-State P-31 NMR Spin-Lattice Relaxation File

Zhu, Kake , Hu, Jianzhi , She, Xiaoyan , Liu, Jun , Nie, Zimin , Wang, Yong , Peden, Charles H. F. , Kwak, Jahun

Article Issue Date2009-07 View12

Characterization of surface and bulk nitrates of gamma-Al2O3-supported alkaline earth oxides using density functional theory File

Mei, Donghai , Ge, Qingfeng , Kwak, Jahun , Kim, Do Heui , Verrier, Christelle , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2009-02 View12

Characterizing Surface Acidic Sites in Mesoporous-Silica-Supported Tungsten Oxide Catalysts Using Solid-State NMR and Quantum Chemistry Calculations File

Hu, Jian Zhi , Kwak, Jahun , Wang, Yong , Hu, Mary Y. , Turcu, Romulus V. , Peden, Charles H. F.

Article Issue Date2011-12 View8

Coordinatively Unsaturated Al3+ Centers as Binding Sites for Active Catalyst Phases of Platinum on gamma-Al2O3 File

Kwak, Jahun , Hu, Jianzhi , Mei, Donghai , Yi, Cheol-Woo , Kim, Do Heui , Peden, Charles H. F. , Allard, Lawrence F. , Szanyi, Janos

Article Issue Date2009-09 View16

Current Understanding of Cu-Exchanged Chabazite Molecular Sieves for Use as Commercial Diesel Engine DeNO(x) Catalysts File

Gao, Feng , Kwak, Jahun , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2013-11 View17

Direct observation of the active center for methane dehydroaromatization using an ultrahigh field Mo-95 NMR spectroscopy File

Zheng, Heng , Ma, Ding , Bao, Xinhe , Hu, Jian Zhi , Kwak, Jahun , Wang, Yong , Peden, Charles H. F.

Article Issue Date2008-03 View7

Effect of H2O on the adsorption of NO2 on gamma-Al2O3: an in situ FTIR/MS study File

Szanyi, Janos , Kwak, Jahun , Chimentao, Ricardo J. , Peden, Charles H. F.

Article Issue Date2007-02 View11

Effect of K loadings on nitrate formation/decomposition and on NOx storage performance of K-based NOx storage-reduction catalysts File

Kim, Do Heui , Mudiyanselage, Kumudu , Szanyi, Janos , Kwak, Jahun , Zhu, Haiyang , Peden, Charles H. F.

Article Issue Date2013-10 View11

Effect of reductive treatments on Pt behavior and NOx storage in lean NOx trap catalysts File

Wang, XianQin , Kim, Do Heui , Kwak, Jahun , Wang, Chongmin , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2011-10 View12

Effects of hydrothermal aging on NH3-SCR reaction over Cu/zeolites (vol 287, pg 203, 2012) File

Kwak, Jahun , Tran, Diana , Burton, Sarah D. , Szanyi, Janos , Lee, Jong H. , Peden, Charles H. F.

Article Issue Date2012-05 View8

Effects of Novel Supports on the Physical and Catalytic Properties of Tungstophosphoric Acid for Alcohol Dehydration Reactions File

Herrera, Jose E. , Kwak, Jahun , Hu, Jian Zhi , Wang, Yong , Peden, Charles H. F.

Article Issue Date2008-08 View13

Effects of Sulfation Level on the Desulfation Behavior of Presulfated Pt-BaO/Al2O3 Lean NOx Trap Catalysts: A Combined H-2 Temperature-Programmed Reaction, in Situ Sulfur K-Edge X-ray Absorption Near-Edge Spectroscopy, X-ray Photoelectron Spectroscopy, and Time-Resolved X-ray Diffraction Study File

Kim, Do Heui , Szanyi, Janos , Kwak, Jahun , Wang, Xianqin , Hanson, Jonathan C. , Engelhard, Mark , Peden, Charles H. F.

Article Issue Date2009-04 View10

Enhanced High Temperature Performance of MgAl2O4-Supported Pt-BaO Lean NOx Trap Catalysts File

Kwak, Jahun , Kim, Do Heui , Szanyi, Janos , Cho, Sung June , Peden, Charles H. F.

Article Issue Date2012-03 View15

Excellent activity and selectivity of Cu-SSZ-13 in the selective catalytic reduction of NOx with NH3 File

Kwak, Jahun , Tonkyn, Russell G. , Kim, Do Heui , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2010-10 View14

Excellent sulfur resistance of Pt/BaO/CeO(2) lean NO(x) trap catalysts File

Kwak, Ja Hun , Kim, Do Heui , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2008-12 View11

High field Al-27 MAS NMR and TPD studies of active sites in ethanol dehydration using thermally treated transitional aluminas as catalysts File

Hu, Jian Zhi , Xu, Suochang , Kwak, Jahun , Hu, mary Y , Wan, Chuan , Zhao, Zhenchao , Szanyi, Janos , Bao, Xinho , Han, Xiuwen , Wang, Yong , et al

Article Issue Date2016-04 View7

Highly Dispersed and Active ReOx on Alumina-Modified SBA-15 Silica for 2-Butanol Dehydration File

She, Xiaoyan , Kwak, Jahun , Sun, Junming , Hu, Jianzhi , Hu, Mary Y. , Wang, Chongmin , Peden, Charles H. F. , Wang, Yong

Article Issue Date2012-06 View18

In situ DRIFTS-MS studies on the oxidation of adsorbed NH3 by NOx over a Cu-SSZ-13 zeolite File

Zhu, Haiyang , Kwak, Jahun , Peden, Charles H. F. , Szanyi, Janos

Article Issue Date2013-04 View13

Isothermal desulfation of pre-sulfated Pt-BaO/gamma-Al2O3 lean NOx trap catalysts with H-2: The effect of H-2 concentration and the roles of CO2 and H2O File

Kim, Do Heui , Kwak, Jahun , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2012-01 View13

Low-temperature carbon monoxide oxidation catalysed by regenerable atomically dispersed palladium on alumina File

Peterson, Eric J. , Delariva, Andrew T. , Lin, Sen , Johnson, Ryan S. , Guo, Hua , Miller, Jeffrey T. , Kwak, Jahun , Peden, Charles H. F. , Kiefer, Boris , Allard, Lawrence F. , et al

Article Issue Date2014-09 View16

Modification of the acid/base properties of gamma-Al2O3 by oxide additives: An ethanol TPD investigation File

Kwak, Ja Hun , Lee, Jaekyoung , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2016-05 View9

NMR studies of Cu/zeolite SCR catalysts hydrothermally aged with urea File

Cheng, Yisun , Hoard, John , Lambert, Christine , Kwak, Jahun , Peden, Charles H. F.

Article Issue Date2008-07 View16

NO2 adsorption on BaO/Al2O3: The nature of nitrate species File

Szanyi, Ja´nos , Kwak, Jahun , Kim, Do Heui , Burton, Sarah D. , Peden, Charles H. F.

Article Issue Date2005-01 View13

NOx uptake mechanism on Pt/BaO/Al2O3 catalysts File

Kwak, Jahun , Kim, Do Heui , Szailer, Tamas , Peden, Charles H. F. , Szanyi, Janos

Article Issue Date2006-11 View13

NOx uptake on alkaline earth oxides (BaO, MgO, CaO and SrO) supported on gamma-Al2O3 File

Verrier, Christelle , Kwak, Jahun , Kim, Do Heui , Peden, Charles H. F. , Szanyi, Janos

Article Issue Date2008-07 View9

Penta-coordinated Al3+ ions as preferential nucleation sites for BaO on gamma-Al2O3: An ultra-high-magnetic field Al-27 MAS NMR study File

Kwak, Jahun , Hu, Jian Zhi , Kim, Do Heui , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2007-10 View12

Possible origin of improved high temperature performance of hydrothermally aged Cu/beta zeolite catalysts File

Peden, Charles H. F. , Kwak, Jahun , Burton, Sarah D. , Tonkyn, Russell G. , Kim, Do Heui , Lee, Jong-Hwan , Jen, Hung-Wen , Cavataio, Giovanni , Cheng, Yisun , Lambert, Christine K.

Article Issue Date2012-04 View10

Promotional Effect of CO2 on Desulfation Processes for Pre-Sulfated Pt-BaO/Al2O3 Lean NOx Trap Catalysts File

Kim, Do Heui , Kwak, Jahun , Szanyi, Janos , Wang, Xianqin , Engelhard, Mark H. , Peden, Charles H. F.

Conference Paper Issue Date2009-12-13 View12

Promotional effects of H(2)O treatment on NO(x) storage over fresh and thermally aged Pt-BaO/Al(2)O(3) lean NO(x) trap catalysts File

Kim, Do Heui , Chin, Ya-Huei , Kwak, Jahun , Peden, Charles H. F.

Article Issue Date2008-08 View15

Role of pentacoordinated Al3+ ions in the high temperature phase transformation of gamma-Al2O3 File

Kwak, Jahun , Hu, Jianzhi , Lukaski, Adrienne , Kim, Do Heui , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2008-06 View12

Roles of Pt and BaO in the sulfation of Pt/BaO/Al2O3 lean NOx trap materials: Sulfur K-edge XANES and Pt L-III XAFS studies File

Kim, Do Heui , Kwak, Jahun , Szanyi, Janos , Cho, Sung June , Peden, Charles H. F.

Article Issue Date2008-02 View12

Size-Dependent Catalytic Performance of CuO on gamma-Al2O3: NO Reduction versus NH3 Oxidation File

Kwak, Jahun , Tonkyn, Russell , Tran, Diana , Mei, Donghai , Cho, Sung June , Kovarik, Libor , Lee, Jong H. , Peden, Charles H. F. , Szanyi, Janos

Article Issue Date2012-07 View17

Structure and chemistry of transition Al2O3 surfaces

Kwak, Jahun , Kovarik. Libor , Hu, Jianzhi , Szanyi, Janos , Peden, Charles H. F.

Conference Paper Issue Date2014-08-10 View11

Structure of δ-alumina: Toward the atomic level understanding of transition alumina phases File

Kovarik, Libor , Bowden, Mark , Genc, Arda , Szanyi, János , Peden, Charles H. F. , Kwak, Jahun

Article Issue Date2014-08 View12

Structure-activity relationships in NH3-SCR over Cu-SSZ-13 as probed by reaction kinetics and EPR studies File

Gao, Feng , Walter, Eric D. , Karp, Eric M. , Luo, Jinyong , Tonkyn, Russell G. , Kwak, Jahun , Szanyi, Janos , Peden, Charles H. F.

Article Issue Date2013-04 View33

Studies of the Active Sites for Methane Dehydroaromatization Using Ultrahigh-Field Solid-State Mo-95 NMR Spectroscopy File

Hu, Jian Zhi , Kwak, Jahun , Wang, Yong , Peden, Charles H. F. , Zheng, Heng , Ma, Ding , Bao, Xinhe

Article Issue Date2009-02 View12

Synthesis of nanodispersed oxides of vanadium, titanium, molybdenum, and tungsten on mesoporous silica using atomic layer deposition File

Herrera, Jose E. , Kwak, Jahun , Hu, Jian Zhi , Wang, Yong , Peden, Charles H. F.

Article Issue Date2006-10 View21

The catalytic chemistry of HCN+NO2 over na- and Ba-Y,FAU: An in situ FTIR and TPD/TPR study File

Szanyi, János , Kwak, Jahun , Peden, Charles H. F.

Article Issue Date2005-02 View12

The different impacts of SO2 and SO3 on Cu/zeolite SCR catalysts File

Cheng, Yisun , Lambert, Christine , Kim, Do Heui , Kwak, Jahun , Cho, Sung June , Peden, Charles H. F.

Article Issue Date2010-06 View16

The Effect of Copper Loading on the Selective Catalytic Reduction of Nitric Oxide by Ammonia Over Cu-SSZ-13 File

Kwak, Jahun , Tran, Diana , Szanyi, Janos , Peden, Charles H. F. , Lee, Jong H.

Article Issue Date2012-03 View17

The effect of water on the adsorption of NO2 in Na- and Ba-Y, FAU zeolites: A combined FTIR and TPD investigation File

Szanyi, Ja´nos , Kwak, Jahun , Peden, Charles H. F.

Article Issue Date2004-03 View7

The Origin of Regioselectivity in 2-Butanol Dehydration on Solid Acid Catalysts File

Kwak, Jahun , Rousseau, Roger , Mei, Donghai , Peden, Charles H. F. , Szanyi, Janos

Article Issue Date2011-10 View13

Tomography and High-Resolution Electron Microscopy Study of Surfaces and Porosity in a Plate-like gamma-Al2O3 File

Kovarik, Libor , Genc, Arda , Wang, Chongmin , Qiu, Annie , Peden, Charles H. F. , Szanyi, Janos , Kwak, Jahun

Article Issue Date2013-01 View11

Two different cationic positions in Cu-SSZ-13? File

Kwak, Jahun , Zhu, Haiyang , Lee, Jong H. , Peden, Charles H. F. , Szanyi, Janos

Article Issue Date2012-05 View15

Understanding practical catalysts using a surface science approach: The importance of strong interaction between BaO and Al2O3 in NOx storage materials File

Yi, Cheol-Woo , Kwak, Jahun , Peden, Charles H. F. , Wang, Chongmin , Szanyi, Janos

Article Issue Date2007-10 View15

Understanding the nature of surface nitrates in BaO/gamma-Al2O3 NOx storage materials: A combined experimental and theoretical study File

Kwak, Jahun , Mei, Donghai , Yi, Cheol-Woo , Kim, Do Heui , Peden, Charles H. F. , Allard, Lawrence F. , Szanyi, Janos

Article Issue Date2009-01 View13

Unique Role of Anchoring Penta-Coordinated Al3+ Sites in the Sintering of gamma-Al2O3-Supported Pt Catalysts File

Mei, Donghai , Kwak, Jahun , Hu, Jianzhi , Cho, Sung June , Szanyi, Janos , Allard, Lawrence F. , Peden, Charles H. F.

Article Issue Date2010-09 View17

Unraveling the Origin of Structural Disorder in High Temperature Transition Al2O3: Structure of θ-Al2O3 File

Kovarik, Libor , Bowden, Mark , Shi, Dachuan , Washton, Nancy M. , Andersen, Amity , Hu, Jian Zhi , Lee, Jaekyoung , Szanyi, Janos , Kwak, Jahun , Peden, Charles H. F.

Article Issue Date2015-10 View11

Using a Surface-Sensitive Chemical Probe and a Bulk Structure Technique to Monitor the gamma- to theta-Al2O3 Phase Transformation File

Kwak, Ja Hun , Peden, Charles H. F. , Szanyi, Janos

Article Issue Date2011-06 View13

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