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제108회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis and Electrochemical Characterization of Silver Nanowires

2011년 8월 2일 10시 51분 41초
Ⅳ-ELEC.P-307 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
금 <발표Ⅳ>
저자 및
김수진, 심준호1, 이종목2, 이영미3
이화여자대학교 화학나노과학과, Korea
1이화여자대학교 신재생에너지연구센터, Korea
2이화여자대학교 화학과, Korea
3이화여자대학교 자연과학대학/화학전공, Korea
Fuel cell has attracted much attention in recent years as a new energy system. Better electrocatalysts for oxygen reduction reaction (ORR) are needed to improve the efficiency and to lower the cost of fuel cells. Pt and its alloys are still the best electrocatalysts for ORR, but the high cost and limited supply of Pt are the problem. Metal nanowires have been studied extensively because of their potential use as active components of interconnects in fabricating electronic, photonic, and sensing devices. Meanwhile silver exhibits the highest electrical and thermal conductivities. Therefore, silver nanowire is synthesized and characterized as fuel cell cathode catalyst in this presentation. In fact, the morphology of the silver nanowires is investigated as a function of temperature condition used for the synthesis. In addition, Ag/AgCl core-shell nanowires and the ones further decorated with Ir nanoparticles are prepared by galvanic replacement reaction. The structures, morphologies and electrocatalytic activities of these nanomaterials are characterized by scanning electron microscopy (SEM) and rotating disk electrode (RDE). This research was carried out under the General R/D Program of the Daegu Gyeongbuk Institute of Science and Technology (DGIST), funded by Ministry of Education, Science and Technology (MEST) of the Republic of Korea.