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  • 09월 20일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제126회 대한화학회 학술발표회 및 총회 Hot Electron Transfer Kinetics in Aggregation-Induced Space of Gold Nanoparticles

2020년 9월 3일 16시 53분 20초
MAT.P-487 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 21일(수) 17:30~18:00
Materials Chemistry
저자 및
Jueun Bae, Youngsoo Kim*
Department of Chemistry, Yeungnam University, Korea
Noble metal nanoparticles, i.e., Au, Ag, and Cu, have been received increasing attention as a visible light-driven photocatalysts due to their unique optical property arising from localized surface plasmon resonance (LSPR). However, these types of photocatalysts have inherent limitations that the rate of recombination of excited electrons and holes is too fast so that these charge carriers cannot easily participate in chemical reactions. As a consequence, the reaction rate in plasmonic photocatalyst is limited by the diffusion rate of chemical species to the photocatalysts, resulting in showing a slower reaction rate. To enhance the rate of reaction in plasmonic photocatalysts, it can be one of the key ideas that either the migration length of excited electrons or diffusion length of reaction species needs to be shortened. In this study, we made a confided space that can aid to reduce the distance between photocatalysts and the reaction species through surface engineering on nanoparticles. We will compare the reaction kinetics in plasmonic photocatalysis between the colloidal nanoparticle system and the nanoreactor system and will endeavor to find mechanistic insight in photochemical electron transfer in a nanoscale reactor.