121st General Meeting of the KCS

Type Poster Presentation
Area Inorganic Chemistry
Room No. Event Hall
Time 4월 19일 (목요일) 11:00~12:30
Code INOR.P-164
Subject Comparison of the electrochemical properties of hetero structure of Au-CuO nanocomposite by lattice strain
Authors SeonYeong CHOI, In Su Lee1,*
Advanced Materials Science, Pohang University of Science and Technology, Korea
1Department of Chemistry, Pohang University of Science and Technology, Korea
Abstract Tuning the lattice strain of hetero structure is important role to enhance the electro-catalytic activity. In previous study, our group reported the hetero structure of Au-CuO nanocomposite was determined by controlling annealing temperature and Cu contents. To identify the difference of lattice strain effects, Au-CuO that has different shell thickness and different structure was synthesized by controlling Cu contents. Also, we confirmed the lattice strain effects by the electro-catalytic activity. To compare the electro-catalytic activity of Au-CuO nanocomposite, oxygen reduction reaction (ORR) was conducted using Au@CuO, Au/CuO, Au and bulk CuO. Especially, we synthesized Au@CuO series that have different shell thickness to confirm the comparing of lattice strain among them. Herein, we report engineering control of the lattice strain in hetero structure of Au-CuO nanocomposite and check the electro-catalytic activity.
E-mail sychoi0118@postech.ac.kr