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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 View172

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 View146

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 View202

Adsorption, coadsorption, and reaction of acetaldehyde and NO2 on Na-Y,FAU: An in situ FTIR investigation File

Szanyi, Janos , Kwak, Jahun , Moline, Ryan A. , Peden, Charles H.F.

Article Issue Date2004-10 View109

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 View100

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 View110

Changes in ba phases in BaO/Al2O3 upon thermal aging and H2O treatment File

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

Article Issue Date2005-12 View104

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 View130

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 View100

Characterization of Fe2+ ions in Fe,H/SSZ-13 zeolites: FTIR spectroscopy of CO and NO probe molecules File

Szanyi, Janos , Gao, Feng , Kwak, Jahun , Kollar, Marton , Wang, Yilin , Peden, Charles H.F.

Article Issue Date2016-04 View81

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 View187

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 View100

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 View121

Dissecting the steps of CO2 reduction: 1. The interaction of CO and CO2 with gamma-Al2O3: an in situ FTIR study File

Szanyi, Janos , Kwak, Jahun

Article Issue Date2014-08 View111

Dissecting the steps of CO2 reduction: 2. The interaction of CO and CO2 with Pd/gamma-Al2O3: an in situ FTIR study File

Szanyi, Janos , Kwak, Jahun

Article Issue Date2014-08 View79

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 View116

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 View105

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 View119

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 View53

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 View94

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 View131

Ethanol dehydration on gamma-Al2O3: Effects of partial pressure and temperature File

Lee, Jaekyoung , Szanyi, Janos , Kwak, Ja Hun

Article Issue Date2017-06 View155

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 View89

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 View116

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 View101

Identification of the mechanism of NO reduction with ammonia (SCR) on zeolite catalysts File

Khivantsev, Konstantin , Kwak, Ja Hun , Jaegers, Nicholas R. , Koleva, Iskra Z. , Vayssilov, Georgi N. , Derewinski, Miroslaw A. , Wang, Yong , Aleksandrov, Hristiyan A. , Szanyi, Janos

Article Issue Date2022-09 View128

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 View119

Interaction of NO2 with BaO: From cooperative adsorption to Ba(NO3)(2) formation File

Yi, Cheol-Woo , Kwak, Jahun , Szanyi, Janos

Article Issue Date2007-10 View105

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 View119

Mechanism of CO2 Hydrogenation on Pd/Al2O3 Catalysts: Kinetics and Transient DRIFTS-MS Studies File

Wang, Xiang , Shi, Hui , Kwak, Jahun , Szanyi, Janos

Article Issue Date2015-11 View158

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 View218

Morphology and size of Pt on Al2O3: The role of specific metal-support interactions between Pt and Al2O3 File

Lee, Jaekyoung , Jang, Eun Jeong , Oh, Dong Gun , Szanyi, Janos , Kwak, Ja Hun

Article Issue Date2020-05 View121

Morphology-dependent phase transformation of γ-Al2O3 File

Lee, Jaekyoung , Jeon, Himchan , Oh, Dong Gun , Szanyi, Janos , Kwak, Ja Hun

Article Issue Date2015-07 View185

Non-thermal plasma-assisted NOx reduction over Na-Y zeolites: the promotional effect of acid sites File

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

Article Issue Date2006-06 View102

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 View105

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 View96

On the Nature of Extra-Framework Aluminum Species and Improved Catalytic Properties in Steamed Zeolites File

Khivantsev, Konstantin , Jaegers, Nicholas R. , Kovarik, Libor , Derewinski, Miroslaw A. , Kwak, Ja Hun , Szanyi, Janos

Article Issue Date2022-04 View106

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 View141

Photo-catalytic oxidation of acetone on a TiO2 powder: An in situ FTIR investigation File

Szanyi, Janos , Kwak, Jahun

Article Issue Date2015-09 View322

Precise Identification and Characterization of Catalytically Active Sites on the Surface of gamma-Alumina** File

Khivantsev, Konstantin , Jaegers, Nicholas R. , Kwak, Ja-Hun , Szanyi, Janos , Kovarik, Libor

Article Issue Date2021-08 View138

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 View69

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.

Article Issue Date2009-07 View107

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 View113

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 View96

Sequential high temperature reduction, low temperature hydrolysis for the regeneration of sulfated NOx trap catalysts File

Kim, Do Heui , Kwak, Jahun , Wang, Xianqin , Szanyi, Janos , Peden, Charles He

Article Issue Date2008-07 View99

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 View168

Structural complexity of γ-Al2O3: The nature of vacancy ordering and the structure of complex antiphase boundaries File

Kovarik, Libor , Bowden, Mark , Khivantsev, Konstantin , Kwak, Ja Hun , Szanyi, Janos

Article Issue Date2024-03 View127

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 View67

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 View202

Surface Density Dependent Catalytic Activity of Single Palladium Atoms Supported on Ceria** File

Kim, Yongseon , Collinge, Greg , Lee, Mal-Soon , Khivantsev, Konstantin , Cho, Sung June , Glezakou, Vassiliki-Alexandra , Rousseau, Roger , Szanyi, Janos , Kwak, Ja Hun

Article Issue Date2021-10 View142

The adsorption of NO2 and the NO+O-2 reaction on Na-Y,FAU: an in situ FTIR investigation File

Szanyi, Janos , Kwak, Jahun , Moline, Ryan A. , Peden, Charles H.F.

Article Issue Date2003-09 View94

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 View147

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 View90

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 View151

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 View120

Understanding Automotive Exhaust Catalysts Using a Surface Science Approach: Model NOx Storage Materials File

Szanyi, Janos , Yi, Cheol Woo , Mudiyanselage, Kumudu , Kwak, Jahun

Article Issue Date2013-11 View90

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 View131

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 View155

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 View110

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 View123

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