abs

학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 02월 28일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제123회 대한화학회 학술발표회, 총회 및 기기전시회 안내 An Synthetic Approach to Si/doped-Graphene Quantum Dots Nano-Architecture as anode for Li secondary batteries

등록일
2019년 2월 11일 15시 09분 16초
접수번호
5119
발표코드
ANAL2.O-4 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
금 09시 : 12분
발표형식
구두발표
발표분야
Analytical Chemistry - Oral Presentation of Young Analytical Chemists II
저자 및
공동저자
Hasan Jamal, Jin-Yeong Choi, Chang-Seop Lee*
Department of Chemistry, Keimyung University, Korea
Despite the pulverization and unstable solid-electrolyte interface (SEI) challenges, silicone is yet a promising high capacity anode material because of its high gravimetric capacity (~4200 mAh/g). Advancements in nano-architecture Si electrodes still remain a challenge in achieving long cycling life. To overcome these issues, we synthesized OH-doped graphene quantum dots (OH-GQDs) wrapped with Si nanoparticles (50 nm) compensates the volume expansion and conductivity between neighboring nanoparticles. The introduction of few layers in graphene quantum dots favors in lithium insertion and improved the stability of SEI. For characterization FTIR, HR-XPS, XRD and electrochemical testing was performed. This nano-architecture significantly improved the structural stability and conductivity, which could be used as anode material for lithium secondary batteries.

상단으로