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氫還原法制備Mo60Cu40納米復(fù)合粉
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Preparation of Mo60Cu40 Composite Nano-Powder by Hydrogen Reaction
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National Natural Science Foundation of China (50074014)

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    摘要:

    以(NH4)6Mo7O24·2H2O和CuSO4·5H2O (Mo:Cu=60:40，質(zhì)量比，下同)為原料，采用化學(xué)共沉淀制備Mo-Cu復(fù)合氧化物粉末，再經(jīng)過氫還原得到Mo-Cu復(fù)合物納米粉末。結(jié)果表明：化學(xué)共沉淀的條件是反應(yīng)溫度為(50±5) °C，pH 值為(5.1±0.1), 陳化時(shí)間為(8±1) h；Mo-Cu復(fù)合氧化物粉末粒度為20 nm；氫還原溫度為650 °C，Mo-Cu復(fù)合物納米粉末粒度小于100 nm。

    Abstract:

    Mo-Cu (Mo:Cu=60:40, mass ratio) predecessor powder was prepared by chemical co-precipitation taking (NH4)6Mo7O24·2H2O and CuSO4·5H2O as starting materials. And then the Mo-Cu predecessor powder was reduced by hydrogen in closed circulation system to prepare the Mo-Cu composite nano-powder. The results reveal that conditions of the chemical co-precipitation are that reaction temperature is (50±5) °C, pH value (5.1±0.1), and ageing time (9±1) h. Under the conditions mentioned above, the average particle size of the prepared the Mo-Cu predecessor powder is 20 nm. The hydrogen reduction temperature during closed circulation is 650 °C. The particle size of obtained Mo-Cu composite powder is less than 100 nm.

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李在元,翟玉春.氫還原法制備Mo60Cu40納米復(fù)合粉[J].稀有金屬材料與工程,2010,39(1):6~9.[Li Zaiyuan, Zhai Yuchun. Preparation of Mo60Cu40 Composite Nano-Powder by Hydrogen Reaction[J]. Rare Metal Materials and Engineering,2010,39(1):6~9.]
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  • 收稿日期:2009-01-15
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