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세미나

- 아 래 -  

 

1. 일시: 8월 19일(금), 11:00~

2. 장소: KI빌딩(E3), B301호 (3F)

3. 연사: 서민호 (에너지기술연구원)

4. 주제: \"Development of new electro-catalyst through combining with experimental and ab-initio computational calculation in electrochemical energy conversion systems\"

5. 주관: 김형준 교수 (내선 1725) 

6. Abstract:

Development of highly active electrocatalysts that are cost competitive takes the center stage in research fields for next-generation electrochemical energy conversion and storage systems like acid or alkaline based fuel cell and metal-air battery. Regarding the systems for commercialization, there are various challengeable issues, which should overcome sluggish kinetics and stability on the electro-catalyst for the aimed reactions such as oxygen reduction reaction (ORR) or oxygen evolution reaction (OER) occurred in the high over-potential and harsh condition. By applying first principles calculations and state of the art experimental measurements to well-defined model systems of metals, metal oxides and nano-scale Pt particles with heteroatom-doped graphene supports for ORR/OER, we unveil the fundamental mechanisms controlling the catalytic properties and structural integrity of targeted catalysts. The key factors governing the catalytic performance of the materials were provided to comprehend enhanced activity and stability for ORR/OER, as calculating the dissolution potential, cohesive energy, a free energy diagrams with density of states. Moreover, the catalytic properties of prepared catalysts were electrochemically investigated with physicochemical analysis. Both synergetic approaches based on both ab-initio computational and experimental studies are very useful to efficiently develop a new catalyst which makes up for the weaknesses in each approach.

 


첨부: CV, abstract

번호 제목 날짜 조회 수
179 [학과] (9/21) Dr. Youngkook Kwon (KRICT) “Electrocatalysis for Future Energy and Environment: Role of Carbon Monoxide” file 2016.09.19 136
178 [학과] (9/7) Dr. Yun Jeong Hwang (KIST) "(Photo)electrochemical Catalysts for Solar to Chemical Conversion” file 2016.09.02 166
177 [워크샵] (8/30) International Workshop on Energy-Water Nexus 2016 : Science and Technology of Water in Low Dimensional Materials file 2016.08.23 167
176 [학과] (8/22) Dr. Suho Jung (Joint Center for Artificial Photosynthesis (Caltech)) "Electrocatalyst Test Standardization for Solar Fuel Device Applications" file 2016.08.19 121
» [학과] (8/19) Dr. Min Ho Seo (KIER) "Development of new electro-catalyst through combining with experimental and ab-initio computational calculation in electrochemical energy convers file 2016.08.18 168
174 [워크샵] (8/16) Dr.Daniel Sanchez-Portal(Centro de Física de Materiales & Donostia International Physics Center) “TDDFT studies of nano-plasmonics and ion-solid integration with file 2016.08.09 136
173 [학과] (8/10~11) Dr.Daniel Sanchez-Portal(Centro de Física de Materiales & Donostia International Physics Center) "Modeling the Electronic Structure of Nanostructures using DFT an file 2016.08.09 99
172 2016 Fall Colloquium file 2016.08.30 233
171 [학과] (7/28) Dr. Hyun Woo Kim (KRICT) "Constructing two-dimensional electronic spectra from a semiclassical dynamics simulation" file 2016.07.25 164
170 [학과] (7/19) Prof. Prabal K Maiti(Indian Institute of Science) "Structure, dynamics and thermodynamics of water under nano-confinement" file 2016.07.18 166