Postdoctoral researcher Fundamental Electrochemistry (IEK-9) Forschungszentrum Jülich GmbH (FZJ)

E-mail: [email protected], [email protected] Homepage: Google scholar, Notion page, Gitlab

Material Engineer

<aside> 💡 Improving the material and process via investigating the fundamental mechanism

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Education

MS-Ph.D. Integrated Program, Chemical Engineering (2012.03 ~ 2017.08)

Pohang University of Science and Technology (POSTECH) (Pohang, Korea) Supervisor: Prof. Kun-Hong Lee Thesis title: Structural Analysis of Carbon Nanotube Yarn - Study on the Correlation between Structure and Mechanical Behavior through the Theoretical Modeling Key techniques: Processing equipment, Tensile testing, FIB/SEM, Raman spectroscopy

Bachelor, Chemical Engineering (2008.03 ~ 2012.02)

Pohang University of Science and Technology (POSTECH) (Pohang, Korea)

Work experiences

Postdoctoral researcher (2020.03 ~ present)

Fundamental Electrochemistry (IEK-9), Institute of Energy and Climate, Forschungszentrum Jülich GmbH (FZJ) (Jülich, Germany) Topic: Investigation of electrochemical mechanisms via in-situ TEM Supervisor: Dr. Shibabrata Basak *Initially contracted with IAC, RWTH Aachen University (2020.03~2021.11)

• TEM / in-situ TEM
• FIB/SEM
• Programming

Postdoctoral researcher (2018.03 ~ 2020.02)

Carbon Composite Materials Research Center**,** Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST) (Wanju, Korea) Topic: Growth mechanism study of CNT through in-situ TEM Supervisor: Dr. Seung Min Kim

• TEM / in-situ TEM
• FIB/SEM
• Tensile testing

Researcher (2017.02 ~ 2018.02)

Carbon Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST) (Wanju, Korea) Topic: Synthesis and mechanical behavior study of CNT fiber Supervisor: Dr. Seung Min Kim

• Processing equipment
• Tensile testing
• FIB/SEM
• TEM

Student researcher (2014.07 ~ 2016.12)

Carbon Composite Materials Research Center, Institute of Advanced Composite Materials, Korea Institute of Science and Technology (KIST) (Wanju, Korea) Topic: Synthesis and mechanical behavior study of CNT fiber Supervisor: Dr. Seung Min Kim

• Processing equipment
• Tensile testing
• Raman spectroscopy
• SEM

Research topics

1. Analysis of reaction mechanisms via in-situ TEM
   • Electrodeposition behavior depending on biasing and electrolyte flowing conditions (in preparation)
   • Technical development to obtain high resolution of in-situ liquid phase TEM results [ref]
   • Catalytic activity and agglomeration of catalyst particles near reaction temperature (around 1000 oC) [ref]
2. Analysis of structure and mechanical properties of material
   • (Collaboration) Intermediate formation of LATP/LFP (solid electrode/electrolyte) during sintering [ref]
   • Arrangement of graphitic structure of PAN-based carbon fiber during carbonization [ref]
   • Structural evolution of industry-scaled carbon nanotube yarn during densification [ref]
   • Mathematical model to relate between hierarchical structure and mechanical behavior of carbon nanotube fiber [ref]
   • The effect of hierarchical structure on linear density measurement [ref]
3. Fabrication of high strength carbon nanotube fiber via floating catalyst method [ref]
   • Production parameters: Ratio of reactant, Temperature, Gas composition, Spinning rate
   • Qualification methods: Strength (Tensile test), Morphology (TEM, SEM), Crystallinity (Raman analysis)