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  • 09월 04일 13시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Template-free synthesis and characterization of hematite α-Fe2O3 nanostructures with tailored morphology

2009년 8월 14일 14시 06분 15초
금29B9구 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
금 16시 : 20분
재료화학 - Recent Progresses in Materials Chemistry
저자 및
Nitin Chaudhari, 김민식1, 김정호2, 김민우, 임신묵, 송민영, 유종성1
고려대학교 소재화학과, Korea
1고려대학교 신소재화학과, Korea
2고려대학교 신소재 화학과, Korea

The ability to control the structure of metal oxide materials on a nano and micrometer-length-scale and the unique properties of these materials may give rise to entirely new technologies. Assembly of one-dimensional nanostructures into two-dimensioanl (2D), and three-dimensional (3D) ordered superstructures are of great interest in the area of materials chemistry. Because different shapes and sizes are generally believed to be responsible for their widely varying properties and applications, fabrication of metal oxide architectures with controlled structures and morphologies is highly desirable. However, methods to manipulate such nanostructures often include the use of templates, which have to be removed after the reaction. Thus, to create spontaneous generation of novel patterns with tailored structures and shapes by a template-free and simple method remains a challenge. We have sucessfuly controlled the shape, size and morphology of hematite α-Fe2O3 without any template or surfactnt. Various sized rod, hexagonal-prisim, cube, hemisphere, shpere, bowl-like shape can be obtained by varying reaction parameters. We believe this synthesis method will give new insight to the development of magnetic nanostructures for the potential applications.