Materials Design and Process Engineering Laboratory
Jeong Research Group, Department of Mechanical Engineering
Sogang University, South Korea
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About
About
Our group's research goal is to create a sustainable energy future through insights gained from materials design and process engineering. Our approach involves combining computational modeling and experiments to gain insights into fundamental problems at the intersection of materials design and processes engineering. On the application side, our interests specialize in the interfacial design of electrolytes and electrodes for energy conversion/storage and semiconductor applications.
Research
Research
1. Materials Design: AI and Computation
Ex. 1: To overcome the limitation of current computational methods
Ex. 2: To accelerate materials discovery
Ex. 3: Battery materials design, including electrolytes and electrodes
Ex. 4: Prediction of battery interfacial reactivity and stability
2. Process Engineering: Semiconductor and Energy Applications
Ex. 1: Ion diffusion on semiconductor surfaces
Ex. 2: Triboelectric nanogenerator (TENG)
Ex. 3: Ammonia decomposition catalysts for hydrogen energy
Ex. 4: High-performance fuel cell catalysts
Group
Group
Publications
Publications
In Progress
Myeongjae Heo, Heonjae Jeong*, "Atomic Scale Insight into Interfacial Degradation of Molten Salt Electrolytes on FeF₃ Cathodes for Thermal Batteries", under review
Bowen An, Yaxin Shen, Myeongjae Heo, Bomin Li, Siyuan Gao, André Taylor, Heonjae Jeong*, Christopher S. Johnson*, Yingwen Cheng* "Using light to enhance charge-transfer in battery materials: increasing charging rates in LiNi0.5Mn1.5O4", under review
Anton W. Tomich, Seoung-Bum Son, Joseph Quinn, Juyoung Han, Joseph Kubal, Vincent Lavallo*, Heonjae Jeong*, Christopher S. Johnson*, "A Reductively Stable Electrolyte Realizes Deep Cycling Behavior in Anode-Less Sodium Batteries", under review
Heonjae Jeong, Ian I. Suni, Raylin Chen, Grace McKnight, Elif Ertekin, Xiao Xu, Edmund G. Seebauer*, "Effects of Ultraviolet Photostimulation on Oxygen Interstitial Cluster Stability in Rutile TiO2", in preparation
Heonjae Jeong*, Christopher S. Johnson, "Surface Reactivity Modulation of Lithium Silicon Anode", in preparation
Joohyeon Park#, Myeongjae Heo#, Heonjae Jeong*, "Computational Study: Interface of Li7La3Zr2O12 Electrolyte with LiSi and FeS2 in Thermal Batteries", in preparation
Juyoung Han, Heonjae Jeong*, "Computational Study of Ammonia Cracking Mechanism on Nickel-Based Catalysts", in preparation
Junghun Bae, Heonjae Jeong*, "Reductive Stability of Molten Salt Electrolytes on LiSi Anode in Thermal Batteries", in preparation
2025
HHeonjae Jeong*, Christopher S. Johnson*, "Reactivity of Carbonate Solvent Electrolytes on Lithium Silicon Anode", accepted for publication in ACS Appl. Mater. Interfaces., 2025, https://doi.org/10.1021/acsami.5c08232
Hyungu Kang , Heesook Roh, Jongseo Lee , Sang Hyeon Park, Joohyeon Park, Heonjae Jeong, Hyun-Ki Yoon, Tae-Young Ahn*, Yu-song Choi*, "Comparative study of Ta and Ga doping effects on Li7La3Zr2O12 garnet electrolytes for advanced thermal battery applications", RSC Advances, 2025, 15, 27345, https://doi.org/10.1039/D5RA03917G
Jian Zhi Hu#*, Wenda Hu#, Heonjae Jeong#, Grant Alexander, Nguyen, Dan Thien, Venkateshkumar Prabhakaran, Kee Sung Han, Ying Chen, Jordi Cabana-Jimenez, Justin Connell, Lei Cheng, Vijayakumar Murugesan, Kevin R. Zavadil, and Karl T. Mueller*, "Thermal Decomposition Pathways of Bulk Electrolytes on Vanadium Oxide Nanocrystals", Energy Storage Mater., 2025, 79, 104315, https://doi.org/10.1016/j.ensm.2025.104315, #equally contributed
Heonjae Jeong, Ian I. Suni, Raylin Chen, Marina Miletic, Xiao Su, Edmund G. Seebauer*, “Reactions of Fluid and Lattice Oxygen Mediated by Interstitial Atoms at the TiO2 (110)-Water Interface”, Phys. Chem. Chem. Phys., 2025, 27, 9522-9536 https://doi.org/10.1039/D5CP00319A
2024
Xiaoting Fang#, Zhiguang Li#, Lifan Zeng, Heonjae Jeong, Diqing Yue, Lily A. Robertson, Yuyue Zhao, Lei Cheng, Ilya A. Shkrob*, Xiaoliang Wei*, Lu Zhang*, "Kinetic Control over Disproportionation Stabilizes Wurster’s Blue Catholyte for Nonaqueous Redox Flow Batteries", ACS Energy Lett., 2024, 9, 5737−5743, https://doi.org/10.1021/acsenergylett.4c02449, #equally contributed
Heonjae Jeong#*, Haimeng Wang#, Lei Cheng, “Computational Prediction of Solvation Structure in Calcium Battery Electrolytes”, J. Mater. Chem. A, 2024, https://doi.org/10.1039/D4TA06675H, #equally contributed
Chen Zhao#, Heonjae Jeong#, Inhui Hwang, Tianyi Li, Yang Wang, Jianming Bai, Luxi Li, Shiyuan Zhou, Chi-Cheung Su, Wenqian Xu, Zhenzhen Yang, Manar Almazrouei, Cheng-Jun Sun, Lei Cheng, Gui-Liang Xu*, Khalil Amine*, "Polysulfide-incompatible additive suppresses spatial reaction heterogeneity of Li-S batteries", Joule, 2024, https://doi.org/10.1016/j.joule.2024.09.004, #equally contributed
Heonjae Jeong, Edmund G. Seebauer*, “Influence of Interstitial Cluster Families on Post-Synthesis Defect Manipulation and Purification of Oxides using Submerged Surfaces”, Journal of Chemical Physics, 2024, 161, 121103, https://doi.org/10.1063/5.0230224.
Zhiguang Li, Heonjae Jeong, Xiaoting Fang, Yuyue Zhao, Jingjing Zang, Ilya A. Shkrob*, Xiaoliang Wei*, Lei Cheng, Lu Zhang*, "Multifaceted Effects of Ring Fusion in Charged Dialkoxyarene Redoxmers", J. Power Sources, 2024, 608, 234689, https://doi.org/10.1016/j.jpowsour.2024.234689.
Noel J. Leon, Stefan Illic, Xiaowei Xie, Heonjae Jeong, Zhenzhen Yang, Bingning Wang, Evan Spotte-Smith, Charlotte Stern, Nathan Hahn, Kevin Zavadil, Lei Cheng, Kristin Persson, Justin Connell, Chen Liao*, "Design Principles and Routes for Calcium Alkoxyaluminate Electrolytes", J. Phys. Chem. Lett., 2024, 15, 5096-5102, https://doi.org/10.1021/acs.jpclett.4c00969.
Heonjae Jeong*, Lei Cheng, “Intercalation Mechanism of Solvated Magnesium Electrolytes on Spinel Cathode Surfaces”, J. Power Sources 2024, 602, 234227, https://doi.org/10.1016/j.jpowsour.2024.234227.
Yuanyuan Ma, Yaxin Shen, Heonjae Jeong, Jason Lipton, Hang Wang, Stephen A. Maclean, Jason A. Rӧhr, Christopher S. Johnson*, André D. Taylor*, "Fast-charging Li4Ti5O12 anode driven by light", J. Electrochem. Soc., 2024, 171 (2), 020521, https://doi.org/10.1149/1945-7111/ad2592.
Dawei Xia, Heonjae Jeong, Dewen Hou, Lei Tao, Tianyi Li, Kristin Knight, Anyang Hu, Dennis Nordlund, Sami Sainio, Yuzi Liu, John R. Morris, Wenqian Xu, Haibo Huang, Luxi Li, Hui (Claire) Xiong, Lei Cheng*, Feng Lin*, "Self-terminating, Heterogeneous Solid-Electrolyte Interphase Enables Reversible Li-Ether Co-Intercalation in Graphite Anodes, PNAS, 2023, 121 (5), e2313096121, https://doi.org/10.1073/pnas.2313096121.
Chuyi Xie#, Chen Zhao#, Heonjae Jeong, Qiang Liu, Tianyi Li, Wenqian Xu, Lei Cheng, Gui-Liang Xu*, Khalil Amine*, and Guohua Chen*, “Regulating Li Nucleation and Growth Heterogeneities viaNear-Surface Lithium-Ion Irrigation for Stable Anode-LessLithium Metal Batteries”, Small, 2024, 20(12), 2306868 https://doi.org/10.1002/smll.202306868, #equally contributed
2023
Heonjae Jeong#, Dan-Thien Nguyen#, Yingjie Yang, D Bruce Buchholz, Guennadi A Evmenenko, Jinghua Guo, Feipeng Yang, Paul C. Redfern, Jian Zhi Hu, Karl T. Mueller, Robert Klie, Vijayakumar Murugesan, Justin Connell, Venkateshkumar Prabhakaran*, Lei Cheng*, “Reactivity of Mg Electrolyte Species on MgV2O4 Cathode Surface”, ACS Appl. Mater. Interfaces, 2023, 15 (41), 48072–48084, #equally contributed
Jehee Park, Kyojin Ku*, Jihyeon Gim, Seoung-bum Son, Heonjae Jeong, Lei Cheng, Hakim Iddir, Dewen Hou, Claire Xiong, Youngsik Kim, Eungje Lee*, Christopher Johnson, "Multi-functional Effect of Fe Substitution in Na Layered Cathode Materials for Enhanced Storage Stability", ACS Appl. Mater. Interfaces, 2023, 15 (32), 38454–38462
Heonjae Jeong, Edmund G. Seebauer*, “Effects of adventitious impurity adsorption on oxygen interstitial injection rates from submerged TiO2(110) and ZnO(0001) surfaces”, J. Vac. Sci. Technol. A, 2023, 41 (3), 033203
Chuyi Xie#, Chen Zhao#, Heonjae Jeong, Tianyi Li, Luxi Li, Wenqian Xu, Zhenzhen Yang, Cong Lin, Qiang Liu, Lei Cheng, XingkangHuang, Gui-Liang Xu*, Khalil Amine*, Guohua Chen*, “Suppressing Universal Cathode Crossover in High-Energy Lithium Metal Battereis via a Versatile Interlayer Design”, Angew. Chem. Int. Ed. 2023, e202217476, 1–8, #equally contributed
Heonjae Jeong, Ethan P. Kamphaus, Paul C. Redfern, Nathan T. Hahn, Noel J. Leon, Chen Liao, Lei Cheng*, "Computational Predictions of Stability of Fluorinated Calcium Aluminate and Borate Salts”, ACS Appl. Mater. Interfaces, 2023, 15 (5), 6933–6941
Wenxiang Chen, Xun Zhan, Renliang Yuan, Saran Pidaparthy, Adrian Xiao Bin Yong, Hyosung An, Zhichu Tang, Kaijun Yin, Arghya Patra, Heonjae Jeong, Cheng Zhang, Kim Ta, Zachary W. Riedel, Ryan M. Stephens, Daniel P. Shoemaker, Hong Yang, Andrew A. Gewirth, Paul V. Braun, Elif Ertekin, Jian-Min Zuo*, Qian Chen*, “Formation and impact of nanoscopic oriented phase domains in electrochemical crystalline electrodes”, Nat. Mater, 2023, 22, 92‒99
2022
Heonjae Jeong, Edmund G. Seebauer*, “Effects of Ultraviolet Illumination on Oxygen Interstitial Injection from TiO2 under Liquid Water", J. Phys. Chem. C, 2022, 126 (49), 20800‒20806
Heonjae Jeong, Edmund G. Seebauer*, “Strong Isotopic Fractionation of Oxygen in TiO2 by Surface-Enhanced Solid-State Diffusion”, J. Phys. Chem. Lett., 2022, 13 (42), 9841‒9847
Heonjae Jeong, Elif Ertekin, Edmund G. Seebauer*, “Surface-Based Post-synthesis Manipulation of Point Defects in Metal Oxides UsingLiquid Water”, ACS Appl. Mater. Interfaces, 2022, 14 (29), 34059‒34068
2021
Heonjae Jeong, Ming Li, Jingtian Kuang, Elif Ertekin, Edmund G. Seebauer*, “Mechanism of creation and destruction of oxygen interstitial atoms by nonpolar zinc oxide (101"0) surfaces”, Phys. Chem. Chem. Phys., 2021, 23 (30), 16423‒16435
2020
Heonjae Jeong, Elif Ertekin, Edmund G. Seebauer*, “Kinetic Control of Oxygen Interstitial Interaction with TiO2(110) via the SurfaceFermi Energy”, Langmuir, 2020, 36 (42), 12632‒12648
Heonjae Jeong, Edmund G. Seebauer, Elif Ertekin*, “Fermi Level Dependence of Gas-Solid Oxygen Defect Exchange Mechanism onTiO2(110) by First-Principles Calculations”, J. Chem. Phys., 2020, 153 (12), 124710
Dong Young Jang, Junmo Koo, Hyeon Rak Choi, Jun Woo Kim, Heon Jae Jeong, Fritz B. Prinz, Joon Hyung Shim*, “Coke-Free Oxidation of Methanol in Solid Oxide Fuel Cells with Heterogeneous Nickel-Palladium Catalysts Prepared by Atomic Layer Deposition”, ACS Sustain.Chem. Eng., 2020, 8 (28), 10529‒10535
2018
Heonjae Jeong, Edmund G. Seebauer, Elif Ertekin*, “First-Principles Description of Oxygen Self-Diffusion in Rutile TiO2: Assessment of Uncertainties due to Enthalpy and Entropy Contributions,” Phys. Chem. Chem. Phys., 2018, 20 (25), 17448‒17457
2017
Jun Woo Kim, Dong Young Jang, Manjin Kim, Heonjae Jeong, Namkeun Kim*, and Joon Hyung Shim* “Compositional Optimization of Gadolinia-Doped Ceria Treatment for Enhanced Oxygen Reduction Kinetics in Low Temperature Solid Oxide Fuel Cells” Thin Solid Films, 2017, 624, 95‒100
2016
Heonjae Jeong#, Jun Woo Kim#, Joonsuk Park, Jihwan An, Tonghun Lee, Fritz B. Prinz, Joon Hyung Shim*, “Bimetallic Nickel/Ruthenium Catalysts Synthesized by Atomic Layer Deposition for Low-Temperature Direct Methanol Solid Oxide Fuel Cells,” ACS Appl. Mater. Interfaces, 2016, 8 (44), 30090‒30098, #equally contributed
2015
You Kai Li#, Hyung Jong Choi#, Ho Keun Kim, Ke Chean Neoh, Manjin Kim, Junmo Koo, Heon Jae Jeong, Dong Young Jang, Joon Hyung Shim*, “Nanoporous Silver Cathodes Surface-Treated by Atomic Layer Deposition of Y:ZrO2 for High-Performance Low-Temperature Solid Oxide Fuel Cells,” J. Power Sources, 2015, 295, 175‒181, #equally contributed
Heon Jae Jeong, Jun Woo Kim, Dong Young Jang, Joon Hyung Shim*, “Atomic Layer Deposition of Ruthenium Surface-Coating on Porous Platinum Catalysts for High-Performance Direct Ethanol Solid Oxide Fuel Cells,” J. Power Sources, 2015, 291, 239‒245
Heon Jae Jeong, Jun Woo Kim, Kiho Bae, Hojean Jung, Joon Hyung Shim*, “Platinum-Ruthenium Heterogene- ous Catalytic Anodes Prepared by Atomic Layer Deposition for Use in Direct Methanol Solid Oxide Fuel Cells,” ACS Catal., 2015, 5 (3), 1914‒1921
Contact
Contact
Address: Kim Daegon Hall, Room 230, 35 Baekbeom-ro, Mapo-gu, Seoul, 04107, South Korea
Email: hjeong@sogang.ac.kr
Phone: +82-2-705-8636
Office hours: Monday - Friday (9:00 am - 5:00 pm)
How to contact Heonjae
Email is the best way. I will do my best to respond to you within a reasonable time frame.
To future colleagues
We warmly welcome your interest and look forward to potentially meeting you soon. Our research themes align well with diverse academic backgrounds, including mechanical engineering, chemical engineering, materials science and engineering, and electronic engineering. If you have a clear vision and a passion for active research in materials design and process engineering, please feel free to reach out to Heonjae.
Group openings (Fall 2025)
Our lab is open to both Sogang-affiliated and external students, with diverse cultural and personal backgrounds. We are interested in offering a particular invitation extended to enthusiastic undergraduates. The availability of graduate and postdoctoral positions is subject to our current grant status, and we encourage interested candidates to contact Heonjae for more information. If you are interested in joining us, please email your CV with your research interest.
Home page updated - September 2025
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