Method for preparing bismuth ferrite powder by microwave hydrothermal method
The invention discloses a method for preparing bismuth ferrite powder by microwave hydrothermal method, comprising: (1) dissolving FeCl3.6H2O and Bi(NO3)3.5H2O in proper amount of glycol to prepare into a parent salt solution; (2) dripping the parent salt solution into an aqueous ammonia solution wi...
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Format | Patent |
Language | Chinese English |
Published |
24.02.2010
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Abstract | The invention discloses a method for preparing bismuth ferrite powder by microwave hydrothermal method, comprising: (1) dissolving FeCl3.6H2O and Bi(NO3)3.5H2O in proper amount of glycol to prepare into a parent salt solution; (2) dripping the parent salt solution into an aqueous ammonia solution with the concentration being 0.1-0.5mol/l and dripping speed being less than 2ml/min, and after finishing dripping, continuing to stir for 0.4-1h to obtain a deposit; (3) washing the deposit with de-ionized water repeatedly, ageing, and preparing a hydrothermal reaction precursor; and (4) adding the precursor solution into a microwave hydrothermal reaction kettle with the filling ratio being 60-75%, adding a mineralizer into the reaction kettle, placing the reaction kettle into a microwave assistant hydrothermal synthesizer to react for certain period, taking out a product in the reaction kettle, washing with de-ionized water to obtain a neutral product, washing the neutral product with absolute ethanol, and drying a |
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AbstractList | The invention discloses a method for preparing bismuth ferrite powder by microwave hydrothermal method, comprising: (1) dissolving FeCl3.6H2O and Bi(NO3)3.5H2O in proper amount of glycol to prepare into a parent salt solution; (2) dripping the parent salt solution into an aqueous ammonia solution with the concentration being 0.1-0.5mol/l and dripping speed being less than 2ml/min, and after finishing dripping, continuing to stir for 0.4-1h to obtain a deposit; (3) washing the deposit with de-ionized water repeatedly, ageing, and preparing a hydrothermal reaction precursor; and (4) adding the precursor solution into a microwave hydrothermal reaction kettle with the filling ratio being 60-75%, adding a mineralizer into the reaction kettle, placing the reaction kettle into a microwave assistant hydrothermal synthesizer to react for certain period, taking out a product in the reaction kettle, washing with de-ionized water to obtain a neutral product, washing the neutral product with absolute ethanol, and drying a |
Author | BO HAIYANG ZHENG YUQIN TAN GUOQIANG |
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Snippet | The invention discloses a method for preparing bismuth ferrite powder by microwave hydrothermal method, comprising: (1) dissolving FeCl3.6H2O and Bi(NO3)3.5H2O... |
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Title | Method for preparing bismuth ferrite powder by microwave hydrothermal method |
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