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Acta Physico-Chimica Sinica  2002, Vol. 18 Issue (03): 197-200    DOI: 10.3866/PKU.WHXB20020302
Article     
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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Abstract  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.

Key wordsMangnese precursor      Nanophase material      γ-Mangnese dioxide       Particle size      Membrane reactor     
Received: 26 August 2001      Published: 15 March 2002
Corresponding Authors: Wang Rong-Shu     E-mail: 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. Acta Physico-Chimica Sinica, 2002, 18(03): 197-200.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.3866/PKU.WHXB20020302     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2002/V18/I03/197

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