| 학회 |
한국화학공학회 |
| 학술대회 |
2013년 가을 (10/23 ~ 10/25, 대구 EXCO) |
| 권호 |
19권 2호, p.1397 |
| 발표분야 |
미립자공학 |
| 제목 |
One-pot and Template-Free Synthesis of Monodisperse Porous/Hollow Metal Oxide Nanoparticles |
| 초록 |
Porous/hollow nanostructures are of great interest in many current and emerging areas of technology. Herein, we synthesized Fe3O4 and TiO2 nanoparticles with porous/hollow structure through a one-pot solvothermal process and without template. Time-dependent experiments suggested that the formation mechanism comprised several different steps including the generation of spherical particles by gathering of many tiny grains and the development of hollow structure based on the chemical conversion simultaneously coupled with the Ostwald ripening process within these spherical assemblies. We supposed that the chemical conversion might cause the non-uniformities of tiny grains and the empty spaces within the spherical assemblies and thus enhanced the outward migration and relocation of the core grains toward the outer layer, resulting in the formation and expansion of the porous/hollow structure. |
| 저자 |
Nguyen The Dung, 김교선
|
| 소속 |
강원대 |
| 키워드 |
porous/hollow structures; solvothermal; template-free; Ostwald ripening
|
| E-Mail |
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| VOD |
VOD 보기 |
| 원문파일 |
초록 보기 |
