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Citation: Zhao Li-Li, Wang Rong-Shu, Niu Wen-Tai, Li Xiang. Synthesis of γ-MnO₂ Nano Powder Used for SieveMembrane Reactor[J]. Acta Physico-Chimica Sinica, ;2002, 18(03): 197-200. doi: 10.3866/PKU.WHXB20020302 shu

Synthesis of γ-MnO₂ Nano Powder Used for SieveMembrane Reactor

1.
School of Chemical Engineering and Technology, Tianjin University,Tianjin　300072

Received Date: 26 August 2001
Available Online: 15 March 2002

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.
- Mangnese precursor;Nanophase material;γ-Mangnese dioxide;　Particle size;Membrane reactor
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1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Synthesis of γ-MnO2 Nano Powder Used for SieveMembrane Reactor

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通讯作者: 陈斌, bchen63@163.com

Synthesis of γ-MnO₂ Nano Powder Used for SieveMembrane Reactor