A study of CO oxidation on gold nanocatalysts prepared by photo-deposition method

• Main Authors: Pin-yan Lin, 林品妍
• Other Authors: Chung-Kuang Yang
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/rka3c4

碩士 === 國立臺北科技大學 === 化學工程研究所 === 100 === In this study, Au/TiO2 was prepared by photo-deposition method for oxidizing CO to CO2. Crystalline structure was identified by X-ray Diffraction (XRD); the elements of the sample were semi-quantified by X-ray Fluorescence Spectrometer (XRF). Morphologies and particle size of the sample were determined by Transmission Electron Microscopy (TEM), and elemental composition and chemical states were characterized by Electron Spectroscopy for Chemical Analysis (ESCA). Finally, gas chromatography (GC) was used to evaluate the CO conversion of catalysts at different temperatures. To examine these catalysts, Fourier transform infrared spectroscopy (FTIR) coupled with diffuse reflectance sampling accessory was used to study the mechanism of CO oxidation over Au/TiO2 at different temperatures. In addition, design of experiment (DOE) accompanied with ANOVA is applied to analyze the significance of the control factors. With the assistant of DOE, the optimization condition of CO oxidation over Au/TiO2 can be predicted by artificial neural network.