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Transformation of CuO from Cu-MOF Templates and Their Enhanced Sensing Performance for HCHO
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- Authors
- Hyuntae Kang, Kang Hyun Park, Hyung-Kun Lee
- Issue Date
- 2016-02
- Citation
- Bulletin of the Korean Chemical Society, v.37, no.2, pp.123-128
- ISSN
- 0253-2964
- Publisher
- 대한화학회 (KCS)
- Language
- English
- Type
- Journal Article
- Project Code
- 14PB6500, Development of IoT based optical multi gas sensor with 5×5×2mm3 size / 10mW average power consumption, Lee Hyung-Kun
- Abstract
- 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.
- KSP Keywords
- 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, metal organic framework(MOF)