Synthesis and characterization of manganese doped CeO2 nanopowders from hydrolysis and oxidation of Ce37Mn18C45
来源期刊：Journal of Rare Earths2013年第3期
论文作者：杜亚男 倪建森 胡鹏飞 王均安 侯雪玲 徐晖
文章页码：271 - 275
摘 要：The Mn-doped CeO 2 nanopowders with high catalysis activity were successfully fabricated through a simple hydrolyzed-oxidized approach.Firstly,the alloy Ce 37 Mn 18 C 45 was prepared in vacuum induction melting furnace.Subsequently,Mn-doped CeO 2 nanopowders with 142 m 2 /g of specific surface area were obtained through a simple hydrolyzed-oxidized procedure of the alloy.Those nanopowders were heat treated at different temperatures.The obtained materials were characterized by X-ray diffraction（XRD）,transmission electron microscopy（TEM）,high-resolution transmission electron microscopy（HRTEM） and energy dispersive spectroscopy（EDS）.And the catalytic activity on vinyl chloride（VC） emission combustion was investigated.The results showed that those nanopowders after hydrolyzed-oxidized from Ce 37 Mn 18 C 45 mainly consisted of CeO 2 and Mn 3 O 4.Manganese element increased the thermal stability of CeO 2 nanopowders.The Mn-doped CeO 2 nanopowders had three morphologies.Small particles were Mn-doped CeO 2,square particles were Mn 3 O 4 and the rods were Mn 3 O 4 and Mn 2 O 3.The Mn-doped CeO 2 nanopowders had good vinyl chloride（VC） emission catalytic performance.
杜亚男，倪建森，胡鹏飞，王均安，侯雪玲，徐晖
Laboratory for Microstructures,Shanghai University
摘 要：The Mn-doped CeO 2 nanopowders with high catalysis activity were successfully fabricated through a simple hydrolyzed-oxidized approach.Firstly,the alloy Ce 37 Mn 18 C 45 was prepared in vacuum induction melting furnace.Subsequently,Mn-doped CeO 2 nanopowders with 142 m 2 /g of specific surface area were obtained through a simple hydrolyzed-oxidized procedure of the alloy.Those nanopowders were heat treated at different temperatures.The obtained materials were characterized by X-ray diffraction（XRD）,transmission electron microscopy（TEM）,high-resolution transmission electron microscopy（HRTEM） and energy dispersive spectroscopy（EDS）.And the catalytic activity on vinyl chloride（VC） emission combustion was investigated.The results showed that those nanopowders after hydrolyzed-oxidized from Ce 37 Mn 18 C 45 mainly consisted of CeO 2 and Mn 3 O 4.Manganese element increased the thermal stability of CeO 2 nanopowders.The Mn-doped CeO 2 nanopowders had three morphologies.Small particles were Mn-doped CeO 2,square particles were Mn 3 O 4 and the rods were Mn 3 O 4 and Mn 2 O 3.The Mn-doped CeO 2 nanopowders had good vinyl chloride（VC） emission catalytic performance.
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