Seminar & Colloquium
[세미나: 1월 11일(목), 오후 3시] 부산대학교, 권세훈 교수
Title
Atomic Scale Control Strategies to Boost Catalytic Activities toward High Performance Fuel Cells
Speaker
부산대학교, 권세훈 교수
Education
- Mar. 2008 ~ Feb. 2009 Postdoctoral Research Fellow, Department of Materials Science and Engineering, KAIST
- Mar. 2004 ~ Feb. 2008 Ph. D. in Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)
- March. 2002 ~ Feb. 2004 M. S. in Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)
- March. 1997 ~ Feb. 2002 B. S. in Materials Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST)
Professional Experience
- Mar. 2019 ~ Present Department Chair, School of Materials Science and Engineering, Pusan National University
- Mar. 2020 ~ Present Director, Innovative Graduate Education Program for Global High-Tech Materials &Parts, BK21FOUR, Pusan National University
- Mar. 2019 ~ Present Director, Institute of Materials Technology, Pusan National University
- Mar. 2018 ~ Present Professor, School of Materials Science and Engineering, Pusan National University
- Mar. 2013 ~ Present Adjunct Professor, School of Converged Science, Department of Applied Hybrid Materials , Pusan National University
- Mar. 2021 ~ Present Committee Member, Atomic Layer Deposition –Terminology, ISO/TC 107
| Date | Wednesday, January 11th, 2023
| Time | 15:00 ~
| Venue | 33동 223호 (동부 세미나실)
[Abstract]
The performance of fuel cells strongly depends on the controlled size, dispersion, density, and surface properties of catalytic nanoparticles on carbon supports. Therefore, a proper selection of synthesis method and design strategy for catalytic nanoparticles is very important to obtain a high performance fuel cells. One of the important strategy for engineering such catalytic nanoparticles is to functionalize the surface of them for obtaining improve performance and stability. And, atomic layer deposition (ALD) has its inherent merits to precisely control the textual properties as well as surface properties of catalytic nanoparticles in atomic scale.
Herein, we will introduce an atomic scale control strategy for realizing a high-performance catalytic nanoparticles for fuel cells using ALD method. The favorable surface characteristics of the functionalized supporting materials for nucleation produced catalytic nanoparticles with an increased uniformity and density and a narrow size range, which led to a higher electrochemical surface area than that of commercial Pt/C. Also, an effective matching of the supporting material and an optimization of the membrane electrode assembly showed many beneficial points in terms of the performance and stability. These merits can mark a step toward a modern high-performing catalytic nanoparticles for enhanced fuel cell technology.
| Host | 선정윤 교수(880-1714)