화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2011년 봄 (04/07 ~ 04/08, 대전컨벤션센터)
권호 36권 1호
발표분야 고분자 합성
제목 Temperature-Tuning Self-Assembly of Gold Nanoparticles into Nano- and Microcrystals
초록 We present a protocol on the temperature-tuning self-assembly behaviors of gold nanoparticles (AuNPs) into shape-controlled gold crystals. A simple phosphorous-containing reactive amine compound, N,N',N''-tris(2-aminoethyl)phosphoric triamide, functioning both as a reducing agent for gold ions was employed to produce AuNPs under an environmental condition. The reaction temperature has been proved to be of pivotal factor in tuning the self-assembly behaviors for the formation of the gold crystals from nano- to micrometer with different morphologies. Other parameters such as gold ion concentration, stirring condition and reaction time have also been investigated to figure out the self-assembled growth process of AuNPs. The plausible mechanistic pathway of the crystal growth process for both nano- and microcystals has been proposed. The colloidal solutions of different gold crystals show their own characteristic surface Plasmon resonant properties according to the size.
저자 장리동, 김일, Haiqing Li, 하창식
소속 부산대
키워드 Gold microcrystals; gold nanocrystals; green synthesis; nanoparticles; N; N'; N''-tris(2-aminoethyl)phosphoric triamide
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