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학술지 Transformation of CuO from Cu-MOF Templates and Their Enhanced Sensing Performance for HCHO
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저자
강현태, 박강현, 이형근
발행일
201602
출처
Bulletin of the Korean Chemical Society, v.37 no.2, pp.123-128
ISSN
0253-2964
출판사
대한화학회 (KCS)
DOI
https://dx.doi.org/10.1002/bkcs.10638
협약과제
14PB6500, 스마트기기를 이용한 가스 누출 검지 기술, 이형근
초록
In this study, porous CuO samples were prepared from Cu-Metal-organic frameworks (MOF) templates through thermal decomposition. Four types of porous CuO samples were prepared through different decomposition treatments at temperatures ranging from 400 to 800 °C. The prepared CuO samples were characterized by scanning electron microscopy, transmission electron microscopy, and X-ray powder diffraction. The CuO prepared at a calcination temperature of 500 °C (CuO-500), showed outstanding sensing performance in terms of response and response/recovery speed. The micropores in the material provided numerous active sites whereas the mesopores functioned as passages for the HCHO gas molecules. Furthermore, CuO-500 shows an excellent selectivity to HCHO gas.
키워드
CuO, Gas sensor, HCHO, Metal-organic frameworks
KSP 제안 키워드
Active sites, Calcination temperature, Cu-MOF, Gas molecules, Scanning electron microscopy(S.E.M.), Sensing Performance, Thermal Decomposition, Transmission Electron Microscopy(TEM), X-Ray powder diffraction, excellent selectivity, gas sensors