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  • Công bố khoa học và công nghệ Việt Nam

61.31

Kỹ thuật hóa học

Lưu Minh Đại, Đào Ngọc Nhiệm, Dương Thị Lim, PGS.TS.Đào Ngọc Nhiệm(1)

Tổng hợp Oxit hỗn hợp CeO2-Mn2O3 cấu trúc nano bằng hỗn hợp đốt cháy gel

Synthesis of nanostructure mixed oxides CeO2-Mn2O3 by the gel combustion method

Hóa học

2012

1

91-95

0866-7144

The nanostructure mixed oxides powder CeO2-Mn2O3 has been synthesized by the combustion of gel from Polyvinyl Alcohol (PVA) as polymer basic and metal nitrate at low temperature (350°C). Characterization of mixed oxides powder CeO2-Mn2O3 was determined by X-ray Diffraction (XRD), Thermogravimetric and Differential Thermal Analysis (TG-DTA), Scanning Electron Microscopy (SEM) and Brunaure Emmet Teller (BET). The gel combustion method was a successful method with short time for synthesis, available raw materials and without special equipment. The simple phase of mixed oxides powder CeO2-Mn2O3 was obtained from thermal treatment at 350°C for 2 hrs. The optimum conditions of synthesis method: Molar ratio metal/PVA = 1:3, pH = 4, gel formation temperature at 80°C. Sample synthesized under optimal conditions has nanostructure with large specific area (65.3 m2/g).

TTKHCNQG, CVv14