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제116회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Synthesis of Ruthenium oxide coated Silicon/Carbon Nanofibers composite as anode material for lithium secondary battery

2015년 8월 27일 12시 08분 24초
ANAL1.O-14 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
목 09시 : 52분
분석화학 - Oral Presentation of Young Analytical Chemists I
저자 및
현유라, 최진영, 박희구1, 이창섭*
계명대학교 화학과, Korea
1계명대학교 화학시스템공학과, Korea
In this study, Silicon/Carbon nanofibers (CNFs) composite was synthesized and applied as anode materials of Li secondary batteries. Silicon/CNFs was grown via chemical vapor deposition (CVD) method. The source of silicon was a silane gas blended in a non-reactive carrier gas. Ethylene as a carbon source was flowed into the quartz reactor of a tubular furnace heated to 600 ℃ and maintained for 10 min to synthesize Silicon/CNFs composite. After Silicon/CNFs composite was put into the 0.01 M RuCl3 solution. The sample was dried in a dryer at 80 ℃. The morphologies, compositions and crystal quality of ruthenium oxide coated Silicon/CNFs composite were characterized by SEM, EDS, TEM, XRD, Raman spectroscopy and XPS. The electrochemical characteristics of ruthenium oxide coated Silicon/CNFs composite as an anode of Li secondary batteries were investigated using three-electrode cell. The as-deposited ruthenium oxide coated Silicon/CNFs composite on Ni foam were directly employed as a working electrode without any binder, and lithium foil was used as the counter and reference electrode. Glass fiber separator was used as the separator membrane. 1M LiClO4 was employed as electrolyte and dissolved in a mixture of propylene carbonate (PC): ethylene carbonate (EC) in a 1:1 volume ratio. The galvanostatic charge?discharge cycling and cyclic voltammetry measurements were carried out at room temperature by using a battery tester. Acknowledgements : This research was financially supported by the Ministry of Education (MOE) and National Research Foundation of Korea (NRF) through the Human Resource Training Project for Regional Innovation (NO. 2015035858).