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ISSN 1000-6818CN 11-1892/O6CODEN WHXUEU
Acta Phys Chim Sin >> 2002,Vol.18>> Issue(03)>> 197-200     doi: 10.3866/PKU.WHXB20020302         中文摘要
Synthesis of γ-MnO2 Nano Powder Used for SieveMembrane Reactor
Zhao Li-Li;Wang Rong-Shu;Niu Wen-Tai;Li Xiang
School of Chemical Engineering and Technology, Tianjin University,Tianjin 300072
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Manganese acetate was complexed with citric acid in solution. The resulted complex was thermally decomposed and then treated with acid to obtain nanophaseγMnO2. Physical properties of γMnO2 were characterized by XRD,TG/DTA,TEM and AFM techniques. The effect of the reaction conditions on reaction rate and final product particle size was also studied. The results showed that the particle size could be controlled by controlling the reaction conditions, so that homogeneous and superfine particle size was obtained. A γMnO2 nanosieve membrane reactor has been set up. The conversion of the dehydrogenation reaction of cyclohexane and isopropanol in the γMnO2 nanosieve membrane reactor was increased by 20% as compared with the conventional packed bed reactor under the same conditions.

Keywords: Mangnese precursor   Nanophase material   γ-Mangnese dioxide    Particle size   Membrane reactor  
Received: 2001-08-26 Accepted: 2001-09-28 Publication Date (Web): 2002-03-15
Corresponding Authors: Wang Rong-Shu Email: rswang@public.tpt.tj.cn


Cite this article: Zhao Li-Li;Wang Rong-Shu;Niu Wen-Tai;Li Xiang. Synthesis of γ-MnO2 Nano Powder Used for SieveMembrane Reactor[J]. Acta Phys. -Chim. Sin., 2002,18 (03): 197-200.    doi: 10.3866/PKU.WHXB20020302
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