La이 도핑된 CuO-ZnO-Al2O3 복합 산화물의 합성공정개발

정미원; 임샛별; 문보람; 홍태환; Miewon Jung; Saet-Byeol Lim; Bo-ram Moon; Tae-Whan Hong

Korean Journal of Materials Research, Vol.21, No.1, 67-71, January, 2011

DOI10.3740/MRSK.2011.21.1.067 Export Citation

La이 도핑된 CuO-ZnO-Al2O3 복합 산화물의 합성공정개발

Development and Synthesis of La Doped CuO-ZnO-Al2O3 Mixed Oxide

정미원^†, 임샛별, 문보람, 홍태환¹

성신여자대학교 생명과학 화학부
¹충주대학교 신소재공학과/친환경에너지부품소재센터

Miewon Jung^†, Saet-Byeol Lim, Bo-ram Moon, and Tae-Whan Hong¹

School of Biological Sciences and Chemistry/Institute of Basic Science, Sungshin Women’s Univ., Seoul 136-742, Korea
¹Department of Material Science and Engineering/Research Center for Sustainable Eco-Devices and Materials (ReSEM), Chungju National Univ., Chungju 380-702, Korea

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La doped CuO-ZnO-Al2O3 powders are prepared by sol-gel method with aluminum isopropoxide and primary distilled water as precursor and solvent. In this synthesized process, the obtained metal oxides caused the precursor such as copper (II) nitrate hydrate and zinc (II) nitrate hexahydrate were added. To improve the surface areas of La doped CuO-ZnOAl2O3 powder, sorbitan (z)-moo-9-octadecenoate (Span 80) was added. The synthesized powder was calcined at various temperatures. The dopant was found to affect the surface area and particle size of the mixed oxide, in conjunction with the calcined temperature. The structural analysis and textual properties of the synthesized powder were measured with an X-ray Diffractometer (XRD), a Field-Emission Scanning Electron Microscope (FE-SEM), Bruner-Emmett-Teller surface analysis (BET), Thermogravimetry-Differential Thermal analysis (TG/DTA), 27Al solid state Nuclear Magnetic Resonance (NMR) and transform infrared microspectroscopy (FT-IR). An increase of surface area with Span 80 was observed on La doped CuO-ZnO-Al2O3 powders from 25 m2/g to 41 m2/g.

Keywords:La doped CuO-ZnO-Al2O3;Span 80;27Al solid state NMR and FT-IR spectroscopy

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