Experience 

2024.03 - Present    Assistant Professor, Department of Applied Chemistry, University of Seoul

2020.08 - 2024.02    Research Professor, Department of Materials Science and Engineerining, Yonsei University

2019.09 - 2020.07    Postdoctoral researcher, Department of Materials Science and Engineering, Yonsei University

2018.09 - 2019.08    Postdoctoral researcher, Center for Hybrid Interfacial Chemical Structure, Ewha Womans University 

Education

2012.09 - 2018.08   Ph.D. Department of Chemistry and Nanoscience (Major: Nano Material Science), Ewha Womans University

                                   Advisor: Prof. Seong-Ju Hwang [link]

2008.09 - 2012.06   B.S. Department of Chemistry, Yanbian University

Academic Careers

2025  -  Present       대한화학회 재료화학분과 학술간사

Representative Publications

1. N. H. Kwon, W. J. Noh, S.-J. Hwang*, X. Jin*, "Design rule for highly stable efficient high-entropy metal oxide electrocatalysts: complementary roles of 3d transition metal ions", Adv. Sci. DOI: 10.1002/advs.202510594 (2025).

2. X. Jin, S. J. Kwon, M. G. Kim*, M. Kim*, S.-J. Hwang*, "Crucial role of coordination number in optimizing electrocatalyst activity of holey large-area 2D Ru nanosheets", ACS Nano 18, 15194-15203 (2024).

3. X. Jin, T. Lee, A. Soon*, S.-J. Hwang*, "Vacancy-assisted transformation of MoS₂ nanosheets into defective MoSₓ nanoclusters to regulate sodium-ion electrode functionality", Adv. Funct. Mater. 34(36), 2316446 (2024).

4. Y. Sun, J. Lee, N. H. Kwon, J. Lim, X. Jin*, Y. Gogotsi*, S.-J. Hwang*, "Enhancing hydrogen evolution reaction activity of palladium catalyst by immobilization on MXene nanosheets", ACS Nano 18(8), 6243-6255 (2024). 

5. S. Y. Yun, S. Lee, X. Jin*, A. Soon*, S.-J. Hwang*, "Ammonolysis-driven exsolution of Ru nanoparticle embedded in conductive metal nitride matrix to boost electrocatalyst activity", Adv. Sci. 11(24), 2309819 (2024).

6. Z. Wang,†* X. Jin,† R. Xu, Z. Yang, S. Ma, T. Yan, C. Zhu, J. Fang, Y. Liu, S.-J. Hwang*, Z. Pan*, H. J. Fan*, "Cooperation between dual metal atoms and nanoclusters enhances activity and stability for oxygen reduction and evolution", ACS Nano 17, 8622-8633 (2023). 

7. Y. H. Park, S. B. Patil, X. Jin*, S.-J. Hwang*, "High efficacy of substrate dimensionality control in optimizing the specific capacitance and phase stability of hybridized nanostructures", Nano Energy 113, 108566 (2023). 

8. X. Jin, H. Jang, N. Jarulertwathana, M. G. Kim*, S.-J. Hwang*, "Atomically thin holey two-dimensional Ru₂P nanosheets for enhanced hydrogen evolution electrocatalysis", ACS Nano 16(10), 16452-16461 (2022).

9. X. Jin, T. Lee, W. Tamakloe, S. B. Patil, A. Soon*, Y.-M. Kang*, S.-J. Hwang*, "In situ defect engineering route to optimize the cationic redox activity of layered double hydroxide nanosheet via strong electronic coupling with holey substrate", Adv. Sci. 9(1), 2103368 (2022).

10. X. Jin, T.-H. Gu, N. H. Kwon, S.-J. Hwang*, "Synergetic advantages of atomically-coupled 2D inorganic and graphene nanosheets as versatile building blocks for diverse functional nanohybrids", Adv. Mater. 33(47), 2005922 (2021).

Awards and Honors

2022      Best Poster Award-Silver Prize, NANO KOREA 2022 Symposium

2021      Excellent Presentation Award, Korea Electrochemical Society

2020      Excellent Presentation Award, Korea Ceramic Society

2019      Young Scientist Award, Pohang Accelerator Laboratory

2018      Excellent Ph.D. Thesis Prize, Ewha Womans University

2017      Solvay Scholarship for Graduated Student, Solvay Korea

2016      Excellent Presentation Award, Marie  Skłodowska-Curie Conference

2016      Excellent Presentation Award, Korea Chemical Society

2014      Excellent Presentation Award, 1st XAFS Conference

2012      International Exchange Scholarship, Ewha Womans University