Journal Publications 

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Recent Progress in Catalytic Aquathermolysis of Heavy Oils

Baskaran Thangaraj; Yong-Kul Lee*

Fuel, in revision.


Understanding Highly Active and Durable Fe-decorated Co(OH)2 Catalysts in Alkaline Oxygen Evolution Reaction by In situ XANES Studies 

Du-Hyeon Kim; Yong-Kul Lee*

Chemical Engineering Journal 490 (2024) 151701.  (link)


Hydrodesulfurization Reactivity of Various Sulfur Compounds in FCC Decant Oils over NiMoS2/Al2O3 Catalysts 

Donghun Lee; Jihyun Kim; Yong-Kul Lee*

Catalysis Today, in revision


Highly Active and Stable CoWS2 Catalysts in Slurry Phase Hydrocracking of Vacuum Residue: XAFS Studies 

Donghun Lee; Ki-Duk Kim; Yong-Kul Lee*

Journal of Catalysis 421 (2023) 145-155. (link)


Reactivity of Sulfur and Nitrogen Compounds of FCC Light Cycle Oil in Hydrotreating over CoMoS and NiMoS Catalysts 

Jihyun Kim; Yong-Kul Lee*

Catalysts 13 (2023) 277. (link)


Insights into Enhanced Activity and Durability of Hierarchical Fe-doped  Ni(OH)2/Ni Catalysts for Alkaline Oxygen Evolution Reaction: In situ XANES Studies

Sang-Yeon Lee; Hyun-Jung Oh; MinJoong Kim; Hyun-Seok Cho; Yong-Kul Lee* 

Applied Catalysis B 324 (2023) 122269. (link)


Beneficial Effect of V on Stability of Dispersed MoS2 Catalysts in Slurry Phase Hydrocracking of Vacuum Residue: XAFS Studies 

Donghun Lee; Yong-Kul Lee*

Journal of Catalysis 413 (2022) 443-454. (link)


Iterative Redox Activation Promotes Interfacial Synergy in an Ag/CuxO Catalyst for Oxygen Reduction 

Youngtae Park; Kihyun Shin; Changsoo Lee; Sang-Yeon Lee; Yong-Kul Lee; Chang-Hee Kim; Hyun-Seok Cho*; Graeme Henkelman*;  Hyuck Mo Lee* 

Chemical Engineering Journal 446 (2022) 136966 . (link)


Boosting Activity and Durability of an Electrodeposited Ni(OH)2 Catalyst Using Carbon Nanotube-Grafted Substrates for the Alkaline Oxygen Evolution Reaction

Sang-Yeon Lee; S.-J. Kim; W. J. Lee*; Yong-Kul Lee* 

ACS Applied Nano Materials 4 (2021) 10267. (link)


Hydrotreating of Waste Tire Pyrolysis Oil over Highly Dispersed Ni2P Catalyst Supported on SBA-15 

Gwang-Nam Yun; Ki-Duk Kim; Yong-Kul Lee*

Catalysts 11 (2021) 1272. (link)  


Sacrificial Species Approach to Designing Robust Transition Metal Phosphide Cathodes for Alkaline Water Electrolysis in Discontinuous Operation

Ik-Sun Kim; Hyun-Seok Cho*; MinJoong Kim*; Hyun-Jung Oh; Sang-Yeon Lee; Yong-Kul Lee;  Changsoo Lee; Jae Hun Lee; Won Chul Cho; Sang-Kyung Kim; Jong Hoon Joo; Chang-Hee Kim*        

Journal of Materials Chemistry A 9 (2021) 16713. (link)


Reactivity of Sulfur Compounds in FCC Decant Oils for Hydrodesulfurization over CoMoS2/Al2O3 Catalysts 

Jihyun Kim; Jung-Geun Jang; Yong-Kul Lee*

Korean Journal of Chemical Engineering 38 (2021) 1179. (link)


Structure and Activity of Unsupported NiWS2 Catalysts for Slurry Phase Hydrocracking of Vacuum Residue: XAFS Studies

Yoon-Hyun Hwang; Yong-Kul Lee*

Journal of Catalysis 403 (2021) 131-140. (link)


Resolving Potential-Dependent Degradation of Electrodeposited Ni(OH)2 Catalysts in Alkaline Oxygen Evolution Reaction (OER): In situ XANES Studies

Sang-Yeon Lee; Ik-Sun Kim; Hyun-Seok Cho; Chang-Hee Kim; Yong-Kul Lee*

Applied Catalysis B 284 (2021) 119729. (link)


Density Functional Theory (DFT) Calculations and Catalysis

Yong-Kul Lee*

Catalysts 11 (2021) 454.


Beneficial Roles of Carbon Black Additives in Slurry Phase Hydrocracking of Vacuum Residue

Ki-Duk Kim; Yong-Kul Lee*

Applied Catalysis A 607 (2020) 117837. (link)


Highly Active and Stable MoWS2 Catalysts in Slurry Phase Hydrocracking of Vacuum Residue

Hyun-Rok Jeong; Ki-Duk Kim; Yong-Kul Lee*

Journal of Catalysis 390 (2020) 117-125. (link).


Structure and activity of Ni2P/desilicated zeolite β catalysts for hydrocracking of pyrolysis fuel oil into BTX

Yong-Su Kim; Kye-Sung Cho; Yong-Kul Lee*

Catalysts 10 (2020) 47. (link)  


Conversion of V-Porphyrin in Asphaltenes into V2S3 as an Active Catalyst for Slurry Phase Hydrocracking of Vacuum Residue

Donghun Lee; Ki-Duk Kim; Yong-Kul Lee*

Fuel 263 (2020) 116620. (link)


Promotional Effect of Co for Unsupported MoS2 Catalysts on Slurry Phase Hydrocracking of Vacuum Residue: XAFS Studies

Ki-Duk Kim; Yong-Kul Lee*

Journal of Catalysis 380 (2019) 278-288. (link)


Promotional Effect of Ga for Ni2P Catalyst on Hydrodesulfurization of 4,6-DMDBT

Jung-Geun Jang; Yong-Kul Lee*

Applied Catalysis B 250 (2019) 181-188. (link


Selective hydrotreating and hydrocracking of FCC light cycle oil into high-value light aromatic hydrocarbons

Youngseok Oh; Jaeuk Shin; Haeseong Noh; Chanwoo Kim; Yong-Su Kim; Yong-Kul Lee; Jung Kyoo Lee*

Applied Catalysis A 577 (2019) 86-98. (link)  


Comparison of Unsupported WS2 and MoS2 Catalysts for Slurry Phase Hydrocracking of Vacuum Residue

Hyun-Rok Jeong; Yong-Kul Lee*

Applied Catalysis A 572 (2019) 90-96. (link


Active Phase of Dispersed MoS2 Catalysts for Slurry Phase Hydrocracking of Vacuum Residue

Ki-Duk Kim; Yong-Kul Lee*

Journal of Catalysis 369 (2019) 111-121. (link)


Designing Supported NiMoS2 Catalysts for Hydrocracking of Vacuum Residue

Han-Byeol Park; Yong-Kul Lee*

Fuel 239 (2019) 1265-1273. (link


Structure and Activity of Dispersed Co, Ni, or Mo Sulfides for Slurry Phase Hydrocracking of Vacuum Residue

Sung-Ho Kim; Ki-Duk Kim; Donghun Lee; Yong-Kul Lee*

Journal of Catalysis 364 (2018) 131-140. (link)  


Promoting Asphaltene Conversion by Tetralin for Hydrocracking of Petroleum Pitch

Han-Byeol Park; Ki-Duk Kim; Yong-Kul Lee*

Fuel 222 (2018) 105-113. (link)  


A New Approach to Deep Desulfurization of Light Cycle Oil over Ni2P Catalysts: Combined Selective Oxidation and Hydrotreating

Gwang-Nam Yun; Kye-Sung Cho; Yong-Su Kim; Yong-Kul Lee*

Catalysts 8 (2018) 102. (link)  


Strong Metal-Support Interaction Effect of Pt/Nb2O5 Catalysts on Aqueous Phase Hydrodeoxygenation of 1,6-Hexanediol

Jin-Woo Jun; Y.-W. Suh; D. J. Suh; Yong-Kul Lee*

Catalysis Today 302 (2018) 108-114. (link)


Sulfur Resistant Nature of Ni2P Catalyst in Deep Hydrodesulfurization 

Yong-Kul Lee; S. Ted Oyama*

Applied Catalysis A 548 (2017) 103-113. (link)


Anomalous in situ Activation of Carbon-supported Ni2P Nanoparticels for Oxygen Evolvong Electrocatalysis in Alkaline Media 

Y.H. Chung; I. Jang; H. S. Park; H.C. Ham; J.H. Jang; Yong-Kul Lee; Sung Jong Yoo*

Scientific Reports 7 (2017) 8236. (link)


Effects of asphaltene structure and tetralin/heptane solvent ratio on the size and shape of asphaltene aggregates

Hwankyu Lee*; Yong-Kul Lee

Physical Chemistry Chemical Physics 19 (2017) 13931-13940. (link)


Morphology effect of β-zeolite supports for Ni2P catalysts on the hydrocracking of polycyclic aromatic hydrocarbons to benzene, toluene, and xylene

Yong-Su Kim; Kye-Sung Cho; Yong-Kul Lee*

Journal of Catalysis 351 (2017) 67-78. (link)


Beneficial Roles of H-Donors as Diluent and H-Shuttle for Asphaltenes in Catalytic Upgrading of Vacuum Residue

Sung-Ho Kim; Ki-Duk Kim; Hwankyu Lee; Yong-Kul Lee*

Chemical Engineering Journal 314 (2017) 1-10. (link)


Effects of Dispersed MoS2 Catalysts and Reaction Conditions on Slurry Phase Hydrocracking of Vacuum Residue

Sung-Ho Kim; Ki-Duk Kim; Yong-Kul Lee*

Journal of Catalysis 347 (2017) 127-137. (link)


Vapor Phase Deoxygenation of Heptanoic Acid over Silica-Supported Palladium and Palladium-Tin Catalysts

Nicholas Kaylor; Jiahan Xie; Yong-Su Kim; Hien Pham; Abhaya Datye; Yong-Kul Lee; Robert J. Davis*

Journal of Catalysis 344 (2016) 202-212. (link)


Rationalization of Electrocatalysis of Nickel Phosphide Nanowires for Efficient Hydrogen Production

Young-Hoon Chung, Kapil Gupta, Jue-Hyuk Jang, Hyun S. Park, Injoon Jang, Jong Hyun Jang, Yong-Kul Lee, Seung-Cheol Lee, Sung Jong Yoo*

Nano Energy 26 (2016) 495-503. (link)


Understanding Conversion Mechanism of NiO Anodic Materials for Li-ion Battery using In situ X-ray Absorption Near Edge Structure Spectroscopy

Jue-Hyuk Jang, Byung-Mok Chae, Hyun-Jung Oh, Yong-Kul Lee*

Journal of Power Sources 304 (2016) 189-195. (link)


The Nature of Active Sites of Ni2P Electrocatalyst for Hydrogen Evolution Reaction

Ji-Sue Moon, Jue-Hyuk Jang, Eung-Gun Kim, Y.-H. Chung, S. J. Yoo, Yong-Kul Lee*

Journal of Catalysis 326 (2015) 92-99. (link)


Conversion Mechanisms of Cobalt Oxide Anode for Li-ion Battery: In situ X-ray Absorption Fine Structure Studies

Byung-Mok Chae, Eun-Suok Oh, Yong-Kul Lee*

Journal of Power Sources 274 (2015) 748-754. (link)


Support Effects of Ni2P Catalysts on Hydrodeoxygenation of Guaiacol: In situ XAFS Studies

Ji-Sue Moon, Yong-Kul Lee*

Topics in Catalysis 58 (2015) 211-218. (link)


Dispersion Effects of Ni2P Catalysts on Hydrotreating of Light Cycle Oil

Gwang-Nam Yun, Yong-Kul Lee*

Applied Catalysis B 150 (2014) 647-655. (link)


Active Sites of Ni2P/SiO2 Catalyst for Hydrodeoxygenation of Guaiacol: A Joint XAFS and DFT Study

Ji-Sue Moon, Eung-Gun Kim, Yong-Kul Lee*

Journal of Catalysis 311 (2014) 144-152. (link)


Effects of nitrogen compounds, aromatics, and aprotic solvents on the oxidative desulfurization (ODS) of light cycle oil over Ti-SBA-15 catalyst

Kye-Sung Cho, Yong-Kul Lee*

Applied Catalysis B 147 (2014) 35-42. (link)


Novel Ni2P/Zeolite Catalysts for Naphthalene Hydrocracking to BTX

Yong-Su Kim, Gwang-Nam Yun, Yong-Kul Lee*

Catalysis Communications 45 (2014) 133-138. (link)


Factors influencing the formation of 2-hydroxy-6-naphthoic acid from carboxylation of naphthol

So-Jin Ahn, Yong-Kul Lee*

Journal of Industrial and Engineering Chemistry 19 (2013) 2060-2063. (link)


Thermodynamic analysis of steam and aqueous reforming of hydroxylated C6 aliphatic compounds

Jin-Woo Jun, Y.-W. Suh, D. J. Suh, Yong-Kul Lee*

Journal of Industrial and Engineering Chemistry 19 (2013) 2072-2078. (link)


Effects of Co Loadings on NaCo/ZnO Catalysts for Ethanol Steam Reforming: XAFS Studies

Ji-Sue Moon, Yong-Kul Lee*

Journal of the Korean Physical Society 63 (2013) 1395-1398. (link)


Beneficial effects of polycyclic aromatics on oxidative desulfurization of light cycle oil over phosphotungstic acid (PTA) catalyst

Gwang-Nam Yun, Yong-Kul Lee*

Fuel Processing Technology 114 (2013) 1-5.(link)


Active Phase of a Pd-Cu/ZSM-5 Catalyst for Benzene Hydroxylation: In-situ XAFS Studies

Kye-Sung Cho, Yong-Kul Lee*

Journal of the Korean Physical Society 61 (2012) 293-296. (link)


EXAFS Studies on the Formation of MoS2 Nanoparticles

Hye-Ryun Seo, Yong-Kul Lee*

Journal of the Korean Physical Society 59 (2011) 730-734. (link)


A New Synthesis of Highly Active Ni2P/Al2O3 Catalyst by Liquid Phase Phosphidation for Deep Hydrodesulfurization

Kye-Sung Cho, Hye-Ryun Seo, Yong-Kul Lee*

Catalysis Communications 12 (2011) 470-474. (link)


Formation Mechanisms of Ni2P Nanocrystals using XANES and EXAFS Spectroscopy

Hye-Ryun Seo, Kye-Sung Cho, Yong-Kul Lee*

Materials Science & Engineering B, 176 (2011) 132. (link)


XAFS Studies on Highly Dispersed Ni2P/SiO2 Catalysts for  Hydrodesulfurization of 4,6-Dimethyldibenzothiophene

Kye-Sung Cho, Sung-Ho Kim, Yong-Kul Lee*

Nuclear Inst. and Methods in Physics Research, A, 621 (2010) 690. (link)


Nickel Phosphide Catalysts Supported on SBA-15 for the Hydrodesulfurization of 4,6-DMDBT

Kye-Sung Cho, Hye-Ryun Seo, Sung-Ho Kim, Yong-Kul Lee*

Journal of the Japan Petroleum Institute, 53 (2010) 173-177. (link)


Effects of Phosphorus Precursor on Structure and Activity of Ni2P/SiO2 Hydrotreating Catalysts: EXAFS Studies

Hye-Ryun Seo, Kye-Sung Cho, Sung-Ho Kim, Yong-Kul Lee*

Journal of the Korean Physical Society, 56 (2010) 2083-2087. (link)


The Active Phase of NaCo/ZnO Catalyst for Ethanol Steam Reforming: EXAFS and in situ XANES Studies

Kyoung-Suk Kim, Yong-Kul Lee*

International Journal of Hydrogen Energy, 35 (2010) 5378-5382. (link)


TPR and EXAFS Studies on Na-promoted Co/ZnO Catalysts for Ethanol Steam Reforming

Kyoung-Suk Kim, Hye-Ryun Seo, So Yun Lee, Jin-Goo Ahn, Woo Cheol Shin, Yong-Kul Lee*

Topics in Catalysis, 53 (2010) 615-620. (link)


Hydrogen production from ethanol over Co/ZnO catalyst in a multi-layered reformer

Yong-Kul Lee*, Kyoung-Suk Kim, Jin-Goo Ahn, In-Hyuk Son, Woo Cheol Shin

International Journal of Hydrogen Energy, 35(2010)1147 (link)


Transition metal phosphide hydroprocessing catalysts: A review

S. T. Oyama, T. Gott., H. Zhao, Y.-K. Lee

Catalysis Today, 143(2009)94


35-We Polymer electrolyte membrane Fuel Cell System for Notebook PC using a Compact Fuel Processor

I.-H. Son, W.C. Shin, Y.-K. Lee, S.-C. Lee, J.-G. Ahn, S.-I. Han, H.-J. Kweon, J.-Y. Kim, M.-C. Kim, J.-Y. Park

Journal of Power Sources, 185(2008)171


The active site of nickel phosphide catalysts for the hydrodesulfurization of 4,6-DMDBT

S. T. Oyama, Y.-K. Lee

J. Catal., 258(2008)393


Active Phase of a Nickel Phosphide (Ni2P) Catalyst Supported on KUSY Zeolite for the Hydrodesulfurization of 4,6-DMDBT

Y.-K. Lee, Y. Shu, S. T. Oyama

Appl. Catal. A, 322(2007)191


True intermediates and spectators in reaction mechanisms:A kinetic and spectroscopic study

S. T. Oyama, C. Reed, Y.-K. Lee, X. Yan

Studies in Surf. Sci. Catal., 172 (2007) 103.


Preparation of Silica-Supported Nickel Molybdenum Phosphides by Temperature-Programmed Reduction Technique

S.-Y. Lee, Y.-K. Lee, S. T. Oyama, S.-H. Lee, H.-C. Woo

Solid State Phenomena 124(2007)1765


Bifunctional nature of a SiO2-supported Ni2P catalyst for hydrotreating: EXAFS and FTIR studies 

Yong-Kul Lee, S. Ted Oyama

J. Catal., 239 (2006) 376.


Comparison of Structural Properties of SiO2, Al2O3, and C/AI2O3 Supported Ni2P Catalysts

Y.-K. Lee, S. T. Oyama

Studies in Surf. Sci. Catal., 159 (2006) 357.


Structure and Oxidation State of Silica-Supported Manganese Oxide Catalysts and Reactivity for Acetone Oxidation Using Ozone

C. Reed, Y.-K. Lee, S. T. Oyama

J. Phys. Chem. B, 110 (2006) 4207.


EXAFS Measurements of a Working Catalyst in the Liquid Phase: An In Situ Study of a Ni2P Hydrodesulfurization Catalyst

T. Kawai, K. K. Bando, Y.-K. Lee, S. T. Oyama, W. J. Chun, K. Asakura

J. Catal., 241 (2006) 20.


Kinetics of Two Pathways for 4,6-Dimethyldibenzothiophene Hydrodesulfurization over NiMo, CoMo Sulfide and Ni Phosphide Catalysts

J. H. Kim, X. Ma, C. Song, Y.-K. Lee, S. T. Oyama

Energy & Fuels 19 (2005) 353.


Acetone Oxidation Using Ozone on Manganese Oxide Catalysts

Y. Xi, C. Reed, Y.-K. Lee, S. T. Oyama

J. Phys. Chem. B, 109(2005)17587


Structure-Sensitivity of Hydrodesulfurization of 4,6-Dimethyldibenzothiophene over Silica-Supported Nickel Phosphide Catalysts

Y. Shu, Y.-K. Lee, S. T. Oyama

J. Catal., 236(2005)112


Mechanism of Hydrodenitrogenation on Phosphides and Sulfides

S. T. Oyama, Y.-K. Lee

J. Phys.Chem.B, 109 (2005) 2109


In Situ X-Ray Absorption Fine Structure Studies on the Structure of Ni2P Supported on SiO2

T. Kawai1, S. Sato,W.-J. Chun, K. Asakura, K.-K. Bando, T. Matsui,Y.Yoshimura, T. Kubota ,Y. Okamoto,Y.-K. Lee, S.T. Oyama

Physica Scripta. T115 (2005) 822


Novel Transition Metal Phosphide Hydrotreating Catalysts for Production of Ultra-Clean Transportation Fuels

S. T. Oyama, Y.-K. Lee, K. Asakura, T. Kawai, W.-J. Chun, Y. Yoshimura, K. K. Bando, J. H. Kim, C. Song

Shokubai, 46(2004)188


Active Phase of Ni2P/SiO2 in Hydroprocessing Reactions

S. T. Oyama, X. Wang, Y.-K. Lee, W.-J. Chun

J. Catal., 221 (2004) 263


In Situ X-Ray Absorption Fine Structure Studies on the Structure of Nickel Phosphide Catalyst Supported on K-USY

T. Kawai, S. Sato S, S. Suzuki, W.-J. Chun, K. Asakura, K.K. Bando, T. Matsui, Y. Yoshimura, T. Kubota, Y. Okamoto, Y.-K. Lee, S. T. Oyama

Chem.Lett., 32 (2003) 956


Effect of Phosphorus Content in Nickel Phosphide Catalysts Studied by XAFS and Other Techniques

S. T. Oyama, X. Wang, Y.-K. Lee, K. Bando, F. G. Requejo

J. Catal., 210 (2002) 207


NOx Storage and Reduction Catalysts for Automotive Lean-burn Engines

P.-H. Han, Y.-K. Lee,  S.-M. Han, H.-K. Rhee

Topics in Catal.,16-17 (2001) 165


Preparation of Colloidal Silica Using Peptization Method

Y.-K. Lee, Y.-R. Yoon, H.-K. Rhee

Colloids and Surfaces A, 173 (2000) 109


Transalkylation of Toluene and 1,2,4-Trimethylbenzene over Large Pore Zeolites

Y.-K. Lee, S.-H. Park, H.-K. Rhee

Catal. Today, 44 (1998) 223