학술발표회초록보기

초록문의 abstract@kcsnet.or.kr

결제문의 member@kcsnet.or.kr

현재 가능한 작업은 아래와 같습니다.
  • 02월 19일 10시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

대한화학회 제121회 학술발표회 및 총회 Synthesis of Core@Middle-shell@Outer-shell Structured FePd@CaSiO3@SiO2 Nanospheres with Controllable Eccentricity of Metal Nancrystals in Solid-State Chemistry

등록일
2018년 2월 7일 15시 55분 26초
접수번호
5422
발표코드
INOR.P-181 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
4월 19일 (목요일) 11:00~12:30
발표형식
포스터
발표분야
Inorganic Chemistry
저자 및
공동저자
DONGKYOUNG YOON, In Su Lee*
Department of Chemistry, Pohang University of Science and Technology, Korea
Synthesizing eccentric metal@SiO2 nanoparticles is not easy because of its unfavorable anisotropic structure. Though its difficulties to make, eccentric nanoparticles have unique physiochemical properties, such as optical, magnetic, catalytic property and so on. In previous work, we found that reduced FePd alloyed nanocrystal of SiO2 nanosphere migrated slowly outward silica medium. To further expand the utility of this FePd metal migration in SiO2 medium, we introduce CaSiO3 layer, on the interface between the FePd nanocrystals and SiO2 nanosphere by encapsulating Ca2+ into SiO2 nanosphere and following high temperature annealing. During the high temperature annealing, the Ca2+ doped SiO2 nanosphere was segregated to CaSiO3 and SiO2 double layer and FePd alloy migrated out of the CaSiO3 layer but, FePd alloy could not move out the silica medium even though the annealing time was increased, and it seem to be trapped in the interface of CaSiO3 and SiO2. Herein, We report for making an eccentric particle by controlling the thickness of the CaSiO3 layer.
상단으로