Hee Sung Yoon

Title: Hee Sung Yoon: Innovator in Proton Conducting Membranes and Solid Oxide Fuel Cells

Introduction

Hee Sung Yoon is a prominent inventor based in College Park, MD (US), known for her significant contributions to the field of energy conversion technologies. With a total of three patents to her name, she has made remarkable advancements in the development of proton conducting membranes and ceramic anode materials for solid oxide fuel cells.

Latest Patents

One of her latest patents focuses on proton conducting membranes for hydrogen production and separation. In this invention, a membrane of proton-electron conducting ceramics is designed for the conversion of hydrocarbons and steam to hydrogen. The membrane features a porous support coated with a film of a Perovskite-type oxide. By incorporating Zr and M in the oxide instead of Ce, the stability of the membrane is enhanced while maintaining sufficient hydrogen flux for efficient hydrogen generation. This process allows for the conversion to occur through steam methane reforming (SMR) and/or water-gas shift reactions (WGS) at high temperatures, effectively driving the conversion of CO to CO and H by removing H to achieve high conversion rates.

Another notable patent involves the development of ceramic anode materials for solid oxide fuel cells (SOFCs). This invention introduces novel anode materials, including various compositions of vanadium-doped strontium titanate (SVT) and vanadium- and sodium-doped strontium niobate (SNNV). These materials exhibit high conductivity at intermediate and low temperatures, making them suitable for use as structural support in SOFC anodes and/or as the conductive phase of an anode. Additionally, a method for fabricating a low- or intermediate-temperature SOFC with an anode layer containing SVT or SNNV is also provided.

Career Highlights

Hee Sung Yoon has worked with esteemed organizations such as the University of Florida Research Foundation and the University System of Maryland. Her work in these institutions has contributed to her expertise and innovation in energy technologies.

Collaborations

Throughout her career, Yoon has collaborated with notable colleagues, including Eric D. Wachsman and Takkeun Oh. These partnerships have further enhanced her research and development efforts in the field.

Conclusion

Hee Sung Yoon is a distinguished inventor whose work in proton conducting membranes and solid oxide fuel cells has made