화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2014년 가을 (10/22 ~ 10/24, 대전 DCC)
권호 20권 2호, p.1427
발표분야 미립자공학
제목 Solvothermal Synthesis of Porous Shell and Hollow Core Metal Oxide Nanostructures
초록 Metal oxide nanoparticles such as Fe3O4 and TiO2 with porous shell and hollow core structure have been synthesized through a one-pot and template-free solvothermal process. It was suggested that the porous structure was formed by spherical assembly of numerous small grains and the hollow core was generated by chemical conversion simultaneously coupled with Ostwald ripening process within these spherical assemblies. 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 Fe3O4; TiO2; porous shell; hollow core; solvothermal
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