화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2013년 봄 (05/01 ~ 05/03, ICC JEJU)
권호 17권 1호
발표분야 포스터-전기화학
제목 Thermodynamic studies on shape controlled metal nanoparticles for oxygen reduction reaction electrocatalysis
초록 Oxygen reduction reaction (ORR) catalytic activity difference among the low index plane can be attributed to the change of the d-band center and surface atom arrangement of metal nanoparticles. Understanding the thermodynamics of nano-sized materials is one of the intriguing issues on designing metal nanoparticles for electrocatalysis. However, tailoring the nanoparticle facet considering the mass activity is complicated and needed to understand the thermodynamics. In this report, we synthesize mono-disperse shape controlled metal nanoparticles and evaluate catalytic activity. To confirm the thermodynamic issues, we measured the ‘parameters of shape rearrangement’ using physical measurements such as XANES and PES and surface sensitive electrochemical techniques.
저자 정동영, 정영훈, 최광현, 안민제, 차인영, 성영은
소속 서울대
키워드 Thermodynamic stability; Oxygen reduction reaction; Electrocatalysis
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