Stanford Advisors

Contact

  • Academic
    yhlim1@stanford.edu
    University - Scholar Department: Mechanical Engineering Position: Postdoctoral Scholar

Additional Info

  • Mail Code: 3030

All Publications

  • Rapid surface kinetics enhancement via flash light sintering for low-temperature solid oxide fuel cells JOURNAL OF ALLOYS AND COMPOUNDS Hong, S., Lim, Y., Lee, H., Chung, W., Hwang, H., Kim, H., Kim, Y. 2019; 778: 337–44

    View details for DOI 10.1016/j.jallcom.2018.11.178

    View details for Web of Science ID 000455179500041

  • Co-sputtered nanocomposite nickel cermet anode for high-performance low-temperature solid oxide fuel cells JOURNAL OF POWER SOURCES Lim, Y., Lee, H., Hong, S., Kim, Y. 2019; 412: 160–69

    View details for DOI 10.1016/j.jpowsour.2018.11.025

    View details for Web of Science ID 000456762100019

  • Grain-Controlled Gadolinia-Doped Ceria (GDC) Functional Layer for Interface Reaction Enhanced Low-Temperature Solid Oxide Fuel Cells. ACS applied materials & interfaces Hong, S. n., Yang, H. n., Lim, Y. n., Prinz, F. B., Kim, Y. B. 2019

    Abstract

    In this Research Article, gadolinia-doped ceria (GDC), which is a highly catalyzed oxide ionic conductor, was explored to further improve oxygen surface reaction rates using a grain-controlled layer (GCL) concept. Typically, GDC materials have been used as a cathode functional layer by coating the GDC between the electrode and electrolyte to accelerate the oxygen reduction reaction (ORR). To further improve the oxygen surface kinetics of the GDC cathodic layer, we modified the grain boundary density and crystallinity developed in the GDC layer by adjusting RF power conditions during the sputtering process. This approach revealed that engineered nanograins of GDC thin films directly affected ORR kinetics by catalyzing the oxygen surface reaction rate, significantly enhancing the fuel cell performance. Using this innovative concept, the fuel cells fabricated with a GDC GCL demonstrated a peak power density of 240 mW/cm2 at 450 °C.

    View details for DOI 10.1021/acsami.9b13999

    View details for PubMedID 31603644

  • Thermally stable current-collecting silver grid coated with ceramic-capping layer for low-temperature solid oxide fuel cells CERAMICS INTERNATIONAL Hong, S., Lim, Y., Prinz, F. B., Kim, Y. 2018; 44 (18): 22212–18

    View details for DOI 10.1016/j.ceramint.2018.08.340

    View details for Web of Science ID 000452345500022

  • A homogeneous grain-controlled ScSZ functional layer for high performance low-temperature solid oxide fuel cells JOURNAL OF MATERIALS CHEMISTRY A Hong, S., Son, J., Lim, Y., Yang, H., Prinz, F. B., Kim, Y. 2018; 6 (34): 16506–14

    View details for DOI 10.1039/c8ta05157g

    View details for Web of Science ID 000444698200025