화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2012년 봄 (04/12 ~ 04/13, 대전컨벤션센터)
권호 37권 1호
발표분야 고분자가공/복합재료
제목 N-doped CNT/Biomineral Core/Shell Nanowires via Biomimetic Mineralization
초록 We report an efficient and environmentally benign biomimetic mineralization of various minerals (SiO2, CaCo3 and TiO2) at graphitic carbon surface, which successfully created an ideal mineral/carbon hybrid structure without any harsh surface treatment or interfacial adhesive layer. The N-doped sites at carbon nanotubes (CNTs) successfully nucleated the high yield biomimetic deposition of uniform-thick mineral nanoshell in the neutral pH aqueous media at ambient pressure and temperature and generated in ‘N-doped CNT (NCNT)/mineral core/shell nanowires’. Unlike previously known organic biomineralization templates, such as protein or peptides, the electro-conductive and high temperature stable NCNT backbone enabled high temperature thermal treatment and corresponding crystal structure transformation of TiO2 nanoshell into Anatase or Rutile phase for optimized material properties.
저자 이원준1, 이주민2, Saji Thomas Kochuveedu3, 윤제문2, 김동하3, 김상욱2
소속 1한국과학기술원, 2KAIST, 3이화여자대
키워드 Biomineralization; Carbon Nanotubes; Mineral; TiO2
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