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        Preparation of Gold Nanoparticles, Au/Fe2O3 by Using a Co-Precipitation Method and their Catalytic Activity

        Tran Thi Minh Nguyet,Nguyen Cong Trang,Nguyen Quang Huan,Nguyen Xuan,Luu Tien Hung,Masakazu Date 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.52 No.5

        Au=Fe₂O₃(Au : Fe = 1 : 50) catalyst was prepared by the co-precipitation method. The co- precipitate was studied by using dierential thermal analysis (DTA) and dierential thermal gravi- metric analysis (DTGA). The structure of the sample was investigated by using X-ray diraction (XRD) and transmission electron microscopy (TEM) and high-resolution transmission electron mi- croscopy (HRTEM). The particle size was determined to be within the range of 1.5 and 8 nm. Results of the study for catalytic properties showed that T1=2 for CO and H2 oxidation were 317 and 405 K respectively. Au=Fe₂O₃(Au : Fe = 1 : 50) catalyst was prepared by the co-precipitation method. The co-precipitate was studied by using DTA and DTGA. The structure of the sample was investigated by XRD, TEM and HRTEM. The particle size was determined to be within the range of 1.5 and 8 nm. Results of the study for catalytic properties showed that T1=2 for CO and H2 oxidation were 317 and 405 K respectively. Au=Fe₂O₃(Au : Fe = 1 : 50) catalyst was prepared by the co-precipitation method. The co- precipitate was studied by using dierential thermal analysis (DTA) and dierential thermal gravi- metric analysis (DTGA). The structure of the sample was investigated by using X-ray diraction (XRD) and transmission electron microscopy (TEM) and high-resolution transmission electron mi- croscopy (HRTEM). The particle size was determined to be within the range of 1.5 and 8 nm. Results of the study for catalytic properties showed that T1=2 for CO and H2 oxidation were 317 and 405 K respectively. Au=Fe₂O₃(Au : Fe = 1 : 50) catalyst was prepared by the co-precipitation method. The co-precipitate was studied by using DTA and DTGA. The structure of the sample was investigated by XRD, TEM and HRTEM. The particle size was determined to be within the range of 1.5 and 8 nm. Results of the study for catalytic properties showed that T1=2 for CO and H2 oxidation were 317 and 405 K respectively.

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