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학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

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  • 02월 26일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제115회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Observing Platinum Single Nanoparticle Collisions on Copper Ultramicroelectrode by Electrocatalytic Amplification

등록일
2015년 2월 25일 15시 36분 50초
접수번호
2050
발표코드
ANAL.O-50 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 11시 : 38분
발표형식
구두발표
발표분야
분석화학 - Oral Presentation of Young Analytical Chemists
저자 및
공동저자
정승연, 권성중*
건국대학교 화학과, Korea
Electrocatalytic oxidation of hydrazine occurs at the surface of Pt nanoparticle when it collides onto a Cu ultramicroelectrode (UME). Collision of the single nanoparticle onto a less catalytic electrode surface had observed through a large amplification of the current by electrocatalysis. Pt nanoparticle contacts the electrode, the “blip (or spike)” current response that the current return to the background level was obtained due to the deactivated particles rather than “staircase” response which was described for an Au UME system. The frequency of the current transient was directly proportional to the nanoparticle concentration. And the current transient becomes sharper when the applied potential increases because deactivation rate is rapid. This paper can help us to understand that the interaction between nanoparticles and electrode affects the chemical reaction.

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