Junsoo HAN
Maître de conférences, HDR (associate professor)
Academic career
Habilitation à Diriger des Recherche (HDR): 2024, LISE, Sorbonne Université
PhD: 2018, Physical chemistry and analytical chemistry (ED388), Institut de Recherche de Chimie de Paris (IRCP)
MSc: 2015, Renewable Energy Science and Technologies, École Polytechniques, Palaiseau, France
BSc: 2011, Chemistry, Korea University, Seoul, South Korea
Professional experiences
Associate professor: 2021 - present, LISE, Sorbonne Université, Paris, France
Postdoctoral research associate: 2021, Physico-Chimie des Surfaces (PCS), IRCP, Paris, France
Postdoctoral research associate: 2019 - 2021, Center for Electrochemical Science and Engineering, University of Virginia, Charlottesville, Virginia, USA
Research engineer: 2011 - 2013, Samsung Corning Precision Materials (Corning Korea Co. Ltd.), Cheonan, South Korea
Research interests
Elemental dissolution kinetics of metallic materials in aqueous and non-aqueous media using atomic emission spectroelectrochemistry (AESEC)
Passivation, dealloying, surface pretreatment
Kinetic analysis using electrochemical impedance spectroscopy (EIS)
Signal analysis using noise electrochemistry (with Prof François HUET)
Projects (coordinator)
ERC (European Research Council) Starting Grant: 2025 - 2030
Understanding degradation mechanisms of metallic materials in extreme environments using element-resolved electrochemistry
Transatlantic Research Partnership (Albertaine Foundation): 2025 - 2027
Toward reliability, environmentally friendliness, and element-resolved corrosion resistance for alkaline water electrolysis
with Johns Hopkins University (Dr. Elaf A. Anber)
ANR-JCJC (Agence Nationale de la Recherche - Jeune Chercheur et Jeune Chercheuse): 2023 - 2025
QUEENE (Quantitative analysis during surface pretreatment by coupling in situ element-resolved electrochemistry and electrogravimetry)
Postdoc: Dr. Borhan Sultan
PEPR-DIADEM (Programmes et Équipements Prioritaires de Recherche - Dispositif Intégrés pour l'Accélération du DEploiment de Matériaux Emergents): 2024 - 2028
CROCUS (micro laboratory for anticorrosion solution design)
Postdoc: Dr. Nelson ACEVEDO
Doctoral school scholarship, ED388: 2024 - 2027
Gravimetry coupled with element-resolved electrochemistry : quantification of evolved gas during the electrochemical reactions
PhD student: Jinyi YUAN
Projets (participants)
ANR-PRC (PI: IRCP): 2021 - 2024
TAPAS2020 (High entropy alloys passivation, dissolution and corrosion)
PEPR-Hydro (PI: IC2MP, Poitiers): 2021 - 2024
HYDRO H2 production by photo(electro)catalysis : operando analysis of new high-entropy oxides
Teaching
Responsible for EIS "formation continue", beginners' level, Sorbonne Université
Responsible for Master 2 "electrochemistry and energy", Sorbonne Université
Master 2 chemistry, "corrosion, EIS", Sorbonne Université
Master 2 chemistry, "corrosion", Polytech Sorbonne
Master 2 nuclear energy, "nuclear reactor corrosion", ENSTA (École Nationale Supérieure de Techniques Avancées)
Bachelor, "electrochemistry", Sorbonne Université
List of publications
Book chapters
2) E. Bahmani, B. Sultan, J. Han, K. Ogle, J. Kish*, “A time and element resolved dissolution study of zinc via atomic emission spectroelectrochemistry (AESEC)”, Conf. Mater., COM 2024, Springer, Cham, https://doi.org/10.1007/978-3-031-67398-7_87
1) O. Gharbi, K. Ogle, J. Han*, “On the chemistry of conversion coatings”, Encyclopedia of Solid-Liquid Interfaces, Elsevier (2024), 532-546, https://doi.org/10.1016/B978-0-323-85669-0.00091-X
======================= 2025 ==========================
41) D. Sur, K.L. Anderson, J. Han, J.R. Scully, "Passivity and pitting of single-phase FeCoNi-Cr-Al compositionally complex alloys: An Al-Cr third element effect in sulfuric acid containing chloride", Corros. Sci., 2025, https://doi.org/10.1016/j.corsci.2025.113402 (accepted))
40) D. Sur, N.C. Smith, E.A. Anber, K.L. Anderson, P.F. Connors, D. Foley, M.L. Taheri, J. Han, C. Wolverton, J.R. Scully, "Revisiting the influence of Sn in Cu-Al alloys: A third element effect enabling stainless steel type corrosion behavior", J. Electrochem. Soc., 2025, https://doi.org/10.1149/1945-7111/ae0eb6 (accepted)
39) H. Klinklin, N. Murer, J. Han, J. Ducrot, C.M. Sánchez-Sánchez, "Rapid evaluation of conversion coating degradation using automated scanning electrochemical microscopy approach curves", Anal. Chem., 2025, 97(39):21409-21417, https://doi.org/10.1021/acs.analchem.5c03107
38) P.F. Connors*, D. Sur, J. Han, J.R. Scully, "Delineating stainless behavior of austenitic compositionally complex alloys through CALPHAD-informed alloy design", Materialia, 2025, 43:102495, https://doi.org/10.1016/j.mtla.2025.102495
37) J. Han*, K. Ogle*, "Element-resolved electrochemical database: AESEC polarization curves of ZnAlMg alloy coating constituents", npj Mater. Degrad., 2025, 9:94, https://doi.org/10.1038/s41529-025-00627-1
36) C. Xie, J. Han, F. Sun, K. Ogle*, "Deciphering the role of alloying elements in spontaneous passivation by element-resolved electrochemistry: From pure metals to equiatomic CoCrFeNi", Electrochim. Acta, 2025, 526:146177, https://doi.org/10.1016/j.electacta.2025.146177
35) C. Xie, J. Han, F. Sun, K. Ogle*, “The spontaneous passivation of multi principal element alloys II: The effect of Mn in the CoCrFeNiMn family”, Corros. Sci., 2025, 244:112642, https://doi.org/10.1016/j.corsci.2024.112642
======================= 2024 ==========================
34) C. Xie, J. Han, J. Tang, F. Sun, K. Ogle*, “The spontaneous passivation of (CoFeNi)(1-x)/3Crx alloys in sulfuric acid”, Corros. Sci., 2024, 239:112383, https://doi.org/10.1016/j.corsci.2024.112383
33) H.L. Chan*, H. Singh, V. Romanovski, E. Romanovskaia, J. Han, J.R. Scully*, “Uncovering accurate values of the polarization resistance in molten fluorides using electrochemical impedance spectroscopy”, J. Electroanal. Chem., 2024, 973:118619, https://doi.org/10.1016/j.elechem.2024.118619
32) B.B.M. Sultan, D. Persson, D. Thierry, J. Han, K. Ogle*, “On the dissolution of kinetics during acid pickling and Zr-based conversion coating of aluminum alloys using element-resolved electrochemistry”, Electrochim. Acta, 2024, 503:144820, https://doi.org/10.1016/j.electacta.2024.144820
31) S. Inman*, J. Han, D. Hoyos, J. Poon, J.R. Scully, “Effect of Ti on the corrosion resistance of Al-Cr-Fe-Mn-Mo-Ni single and multi-phase CCAs”, Corros. Sci., 2024, 236:112262, https://doi.org/10.1016/j.corsci.2024.112262
30) K. Orson, E. Romanovskaia, A. Costine, J. Han, K. Ogle, J. Scully, P. Reinke*, “Corrosion resistance, composition, and stratification of passive films: Ni-22Cr and Ni-22Cr-6Mo alloys passivated and exposure aged in acidic chloride solutions”, J. Electrochem. Soc., 2024, 171:011505, https://doi.org/10.1149/1945-7111/ad1d28
29) S. Inman*, J. Han, M.A. Wischhusen, J. Qi, S.R. Agnew, K.M. Ogle, J.R. Scully, “Passivation and localized corrosion resistance of Al0Cr0.5Fe2MoxNi1.5Ti0.3 compositionally complex alloys: Effect of Mo content”, Corros. Sci., 2024, 227:111692, https://doi.org/10.1016/j.corsci.2023.111692
======================= 2023 ==========================
28) B.B. Mohamad Sultan, O. Gharbi, K. Ogle, J. Han*, “On-line inductively coupled plasma-atomic emission spectroelectrochemistry: Real-time element-resolved electrochemistry”, Curr. Opi. Electrochem., 2023, 41:101350; https://doi.org/10.1016/j.coelec.2023.101350
27) J. Han*, S. Neupane, L. Wang, A. Seyeux, L. Klein, S. Zanna, D. Mercier*, V. Maurice, P. Marcus*, “Effect of surface preparation by high-temperature hydrogen annealing and post-treatment on passivation of Ni-20 at.% Cr polycrystalline alloy in sulfuric acid”, Electrochim. Acta, 2023, 454:142406, https://doi.org/10.1016/j.electacta.2023.142403
26) S.B. Inman*, D. Sur, J. Han, K. Ogle, J.R. Scully, “Corrosion behavior of a compositionally complex alloy utilizing simultaneous Al, Cr, and Ti passivation, Corros. Sci., 2023, 217:111138, https://doi.org/10.1016/j.corsci.2023.111138
25) K. Lutton, J. Han, H.M. Ha, D. Sur, E. Romanovskaia*, J.R. Scully*, “Passivation of Ni-Cr and Ni-Cr-Mo alloys in low and high pH sulfate solutions”, Journal of The Electrochemical Society, 2023, 170:021507, https://doi.org/10.1149/1945-7111/acb9c3
24) A.Y. Gerard*, E.J. Kautz, D.K. Schreiber, J. Han, S. McDonnel, K. Ogle, S. Sahu, P. Lu, J.E. Saal, G.S. Frankel, J.R. Scully, “The role of Cr content in non-equiatomic Ni38Fe20CrxMn21-0.5xCo21-0.5x multi-principal element alloys (x = 22, 14, 10 and 6 atomic %)”, Acta Mater., 2023, 245:118607, https://doi.org/10.1016/j.actamat.2022.118607
23) B. Dou, X. Li, J. Han, N. Birbilis, K. Ogle*, “Operando kinetics of hydrogen evolution and elemental dissolution II: Quantitative analysis of NDE of Mg with Fe in sodium chloride solution”, Corros. Sci., 2023, 217:111095, https://doi.org/10.1016/j.corsci.2023.111095
22) B. Dou, X. Li, J. Han, K. Ogle*, “Operando kinetics of hydrogen evolution and elemental dissolution I: The dissolution of galvanized steel in hydrochloric acid”, Corros. Sci., 2023, 214:111007, https://doi.org/10.1016/j.corsci.2023.111007
======================= 2022 ==========================
21) J. Han, O. Gharbi*, “Current state of electrochemical techniques and corrosion rate analysis for next-generation materials”, Curr. Opi. Electrochem., 2022, 36:101131, https://doi.org/10.1016/j.coelec.2022.101131
20) J. Han*, A.Y. Gerard, P. Lu, J.E. Saal, K. Ogle, J.R. Scully, “Elementally resolved dissolution kinetics of a Ni-Fe-Cr-Mn-Co multi-principal element alloy using AESEC-EIS in sulfuric acid”, J. Electrochem. Soc., 2022, 169:081507, https://doi.org/10.1149/1945-7111/ac862b
19) S.B. Inman*, J. Han, A.Y. Gerard, J. Qi, M.A. Wischhusen, S.R. Agnew, S.J. Poon, K. Ogle, and J.R. Scully, “Effect of Mn content on the passivation and corrosion of Al0.3Cr0.5Fe2MnxMo0.15Ni1.5Ti0.3 compositionally complex alloys”, Corrosion, 2022, 78(1):32-48, https://doi.org/10.5006/3906
======================= 2021 ==========================
18) J. Han*, A.Y. Gerard, X. Li, J.E. Saal, P. Lu, G.S. Frankel, K. Ogle, and J.R. Scully, “Potential dependent Mn dissolution and passivation of Ni38Fe20Cr22Mn10Co10 multi-principal element alloy using multi-element resolved atomic emission spectroelectrochemistry”, J. Electrochem. Soc., 2021, 168:051508, https://doi.org/10.1149/1945-7111/ac0062
17) X-X. Yu*, J. Han, J.R. Scully, and L.D. Marks, “Oxygen injection Ni-Cr in fast/slow dissolution and passivation”, Acta Mater., 2021, 213:116898, https://doi.org/10.1016/j.actamat.2021.116898
16) J. Qiu, D.D. Macdonald, R. Schoell, J. Han, S. Mastromarino, J.R. Scully, D. Kaoumi, and P. Hosemann*, “Electrochemical study of the dissolution of oxide film grown on Type 316 L stainless steel in molten fluoride salt”, Corros. Sci., 2021, 186(1):109457, https://doi.org/10.1016/j.corsci.2021.109457
15) J. Han*, M.G. Wartenberg, H.L. Chan, B.K. Derby, N. Li, and J.R. Scully, “Electrochemical stability, physical, and electronic property of thermally pre-formed oxide compared to artificially sputtered oxide on Fe thin films in aqueous chloride”, Corros. Sci., 2021, 186(1):109456, https://doi.org/10.1016/j.corsci.2021.109456
14) J. Han*, H.L. Chan, M.G. Wartenberg, H.H. Heinrich, and J.R. Scully, “Distinguishing interfacial double layer and oxide-based capacitance on gold and pre-oxidized Fe and Fe-Cr in 1-ethyl-3-methylimidazolium methanesulfonate room temperature ionic liquid aqueous mixture”, Electrochem. Commun., 2021, 122, 106900, https://doi.org/10.1016/j.elecom.2020.106900
13) E.J. Kautz, S.V. Lambeets, D.E. Perea, A.Y. Gerard, J. Han, J.R. Scully, J.E. Saal, and D.K. Schreiber*, “Elemental redistribution during early stages of oxidation in a Ni38Cr22Fe20Mn10Co10 high entropy alloy”, Scripta Mater., 2021, 194:113609, http://doi.org/10.1016/j.scriptamat.2020.10.051
======================= 2020 ==========================
12) J. Qiu, J. Han, R. Schoell, M. Popovic, E. Ghanbari, D. Kaoumi, J.R. Scully, D.D. Macdonald, P. Hosemann*, “Electrical properties of thick oxide scales on pure iron in liquid lead-bismuth eutectic”, Corros. Sci., 2020, 176:109052, https://doi.org/10.1016/j.corsci.2020.109052
11) K. Wang, J. Han, A.Y. Gerard, J.R. Scully, and B-C. Zhou*, “Potential-pH diagram with oxide solution phases for aqueous corrosion of multi-principal element alloys”, npj Mater. Degrad., 2020, 4:35, https://doi.org/10.1038/s41529-020-00141-6
10) A.Y. Gerard*, J. Han, S.J. McDonnel, K. Ogle, E.J. Kautz, D.K. Schreiber, P. Lu, J.E. Saal, G.S. Frankel, and J.R. Scully, “Aqueous passivation of multi-principle element alloy Ni38Fe20Cr22Mn10Co10: Unexpected high Cr enrichment within the passive film”, Acta Mater., 2020, 198:121-133, https://doi.org/10.1016/j.actamat.2020.07.024
9) C. Guerra*, M. Sancy*, M. Walczak, C. Martinez, A. Ringuedé, M. Cassir, J. Han, K. Ogle, H. Gomes de Melo, V. Salinas, C. Aguilar, “Effect of added porosity on a novel porous Ti-Nb-Ta-Fe-Mn alloy exposed to simulated body fluid”, Mater. Sci. & Engin.: C, 2020, 111:110758, https://doi.org/10.1016/j.msec.2020.110758
8) X. Li, J. Han, P. Lu, J.E. Saal, G.B. Olson, G.S. Frankel, J.R. Scully, and K. Ogle*, “Dissolution and passivation of a Ni-Cr-Fe-Ru-Mo-W high entropy alloy by elementally resolved electrochemistry”, J. Electrochem. Soc., 2020, 167:061505, https://doi.org/10.1149/1945-7111/ab7f86
7) J. Han*, D. Thierry and K. Ogle, “Zr-based conversion coating on Zn and Zn-Al-Mg alloy coating: Understanding the accelerating effect of Cu(II) and NO3-”, Surf. Coat. & Tech., 2020, 402, 126236, https://doi.org/10.1016/j.surfcoat.2020.126236
6) J. Han*, V. Vivier, and K. Ogle, “Refining anodic and cathodic dissolution mechanisms: combined AESEC-EIS applied to Al-Zn pure phase in alkaline solution”, npj Mater. Degrad., 2020, 4:19, https://doi.org/10.1038/s41529-020-0123-0
======================= 2019 ==========================
5) J. Han* and K. Ogle, “Hydrogen evolution and elemental dissolution by combined gravimetric and atomic emission spectroelectrochemistry”, J. Electrochem. Soc., 2019, 166(11):C3068-C3070, https://doi.org/10.1149/2.0091911jes
4) J. Han* and K. Ogle, “The anodic and cathodic dissolution of α-phase of Zn-68Al in alkaline media”, Corros. Sci., 2019, 148:1, https://doi.org/10.1016/j.corsci.2018.11.033
3) J. Han, D. Thierry, and K. Ogle*, “Temperature dependence of the passivation and dissolution of Al, Zn and α-phase Zn-68Al”, Corrosion, 2019, 75(1):69-79, https://doi.org/10.5006/2914
======================= 2018 ==========================
2) J. Han and K. Ogle*, “Cathodic dealloying of α-phase Al-Zn in slightly alkaline chloride electrolyte and its consequence for corrosion resistance”, J. Electrochem. Soc., 2018, 165(7) C334-C342, https://doi.org/10.1149/2.0581807jes
======================= 2017 ==========================
1) J. Han and K. Ogle*, “Editors’ choice: Dealloying of MgZn2 intermetallic in slightly alkaline chloride electrolyte and its significance in corrosion resistance”, J. Electrochem. Soc., 2017, 164(14):C952-C961, https://doi.org/10.1149/2.0341714jes