다공성 실리카 매트릭스 내에 고도로 정렬된 금 나노입자의 초격자 구조체

학위논문(박사) - 한국과학기술원 : 원자력및양자공학과, 2015.8 ,[v, 69 p. :]A new synthesis method for the highly ordered superlattice of 12 nm gold nanoparticles confined in po-rous silica has been developed. The gold nanoparticle superlattice showed a highly ordered FCC symmetry and the unit cell size was controllable by adopting different molecular weights of polyethylene glycols that were an-chored to the surface of gold nanoparticle. The superlattice contained the hierarchical pore structure of meso-pores and micropores, which provides the efficient access of fluids to the gold nanoparticle surface. The synthet-ic method for highly ordered nanoparticle superlattice is applicable to various species of nanoparticles, and that can open a new regime of nanoparticle superlattice. The gold nanoparticle superlattice in porous silica exhibited exceptionally high catalytic activity for CO oxidation in contrast to the known tendency about gold catalysts. The superlattice was also stable enough against the high temperatures and against the catalytic reaction. Currently the mechanism of CO oxidation by the superlattice is also yet to be understood, but the superlattice can be used as a good test bed for studying the mechanism of CO oxidation over AuNP catalysts. The high catalytic activity for CO oxidation over the superlattice is a new example of collective behavior that has not been shown by the individual gold nanoparticles.한국과학기술원 :원자력및양자공학과

Study on the generation and diagnostics of an atmospheric large-area glow plasma

본 연구는 한국과학재단 목적기초연구사업(No.R01-2000-00254)의 부분적인 지원 하에 수행되었습니다