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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.
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. Substituted, Mn-doped CeO 2 nanopowders with 142 m2 / 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. Simplified elements of the thermal stability of CeO 2 nanopowders. The Mn-doped CeO 2 nanopowders had three morphologies. n-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.