학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 09월 10일 16시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

대한화학회 제124회 학술발표회 및 총회 Reducing Process of Silica Particle by Metallothermic Reduction Reaction

등록일
2019년 8월 22일 14시 22분 44초
접수번호
3009
발표코드
ANAL1.O-9 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 09시 : 24분
발표형식
구두발표
발표분야
Analytical Chemistry - Oral Presentation of Young Analytical Chemists I
저자 및
공동저자
Seunghyun Lee*, Dong Hwan Nam1
Department of Nanochemistry, Gachon University, Korea
1nanochemistry, Gachon University, Korea
Recently, metallothermic reduction reactions (MRRs) are displacement reactions that use reactive metals to reduce nonmetal materials, mainly silicon and carbon, particularly in their nanostructured forms obtained using an MRR with magnesium as the reductant. Here, we mixed magnesium/aluminum with anisotropic Au@SiO2 core-shell nanoparticles and heated it up to 650℃ to reducing silica shell. We found that small parts scattered in the silica shell were found to be converted to silicon with crystallinity in early time in the heating process. And the reaction progresses, it became porous silicon shell with anisotropic gold nanoparticles as a core structure. It shows that reduction reaction starts inside the silica particle such as island and it proceeds to around. Finding the optimal conditions, this core-shell nanoparticle could be used for dual imaging in bio-healthcare applications.
상단으로