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학술발표회초록보기

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  • 09월 12일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제110회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Copper Nanocompound Prepareds with Sodium Hydroxide by Pulsed Laser Ablation in Deionized Water

등록일
2012년 8월 30일 16시 16분 29초
접수번호
1449
발표코드
PHYS.P-523 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
10월 17일 (수요일) 16:00~19:00
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
정현진, 최명룡
경상대학교 화학과, Korea
Metal nanocompounds exhibit useful optical or electrical functions as well as catalytic actions for various applications. Owing to the structural variety and stability of the metal oxides, they are currently considered the best supports for heterogeneous catalysts. Cuprous oxide (Cu2O) and cupric oxide (CuO) are well-known materials of p-type semiconductors, and have been employed for gas sensors, CO oxidation catalysts, and various heterogeneous catalysts, owing to their low band-gap energy and high catalytic activity, as well as their nontoxic nature and affordable price. Among various particle fabrication methods, pulsed laser ablation in liquid (PLAL) is currently attracting great interest due to its simplicity and versatility. In this study, Cu nanocompounds were prepared by PLA in sodium hydroxide solutions. A pulsed Nd : YAG laser (1064 nm, 10 Hz, 7 ns) is used to produce Cu nanocompounds in deionized water; the crystal structures of Cu, Cu2O and CuO were strongly dependent on the sodium hydroxide concentrations. Morphology, size and optical properties of the Cu nanocompounds were characterized by X-ray diffraction (XRD), field emission scanning electronic microscope (FE-SEM), high resolution - transmission electron microscope (HR-TEM) and ultraviolet-visible spectroscopy (UV-vis), Fourier transform Raman scattering spectroscopy (FT-Raman).

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