STRUKTUR NANOKRISTAL CeO YANG DISINTESIS MENGGUNAKAN METODE PRESIPITASI DENGAN VARIASI LAMA WAKTU KALSINASI 2
作者： Zaenul Muhlisin , Ida Nursanti , Iis Nurhasanah , Heri Sutanto
DOI:
关键词: Precipitation (chemistry) 、 Nanocrystalline material 、 Crystallite 、 Materials science 、 Microstructure 、 Phase (matter) 、 Crystallography 、 Diffraction 、 Calcination 、 Analytical chemistry 、 Lattice constant
摘要: Nanocrystalline CeO have been synthesized by using a precipitation method. in mixedsolvent system of aqua DM and isopropanol. Precipited was calcined at temperature 300 C forvarious calcination time. X-ray difractometer used to investigate resulting presipitedmicrostructure. diffraction patterns were analyzed study effect time tostructure crystallite size. Refinement process x-ray pattern carried out byusing Rietveld The results show that all precipited CeO nanocrystalline withsingle phase cubic fluorite. difference lattice parameter correlated oxygenvacancy. Crystallite size found the range 9 – 11 nm, its incresed as timeincreased. The increasing did not significant influence crystallite size. These result indicated exhibited weak-agglomeration. Keywords: CeO222, nanocrystalline, microstructure, diffraction, precipitation 2 o
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