Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for preparing LaxSr1-xCoO3-delta composite oxide
The invention belongs to the technical field of semiconductor materials, and particularly discloses a method for preparing a LaxSr1-xCoO3-delta composite oxide, which comprises the following steps: dissolving La(NO3)3.6H2O or Co(NO3)2.6H2O in water, adding a precipitant to generate a precipitate, drying the precipitate, adding La2O3, CoO and SrCO3 in a theoretical stoichiometric ratio according tothe chemical formula of predetermined LaxSr1-xCoO3, mixing, wetting, grinding, sintering and cooling, such that the LaxSr1-xCoO3-delta composite oxide is obtained. According to the method, the advantages of a solid-phase method and a liquid-phase method are combined, a part of oxide or hydroxide exists in an amorphous state in solid-phase synthesis through a part of precipitation reactants, so that the speed of an interface reaction in solid-phase synthesis is increased, mutual permeation of the reactants is promoted, the synthesis temperature is reduced, and loss of raw materials and pollution to the environment are avoided. The method has the advantages of simple steps and easily controlled reaction conditions, and is suitable for industrial large-scale production.
本发明属于半导体材料技术领域，具体公开了一种制备LaSrCoO复合氧化物的方法，包括如下步骤：将La(NO)·6HO或Co(NO)·6HO溶于水中，加入沉淀剂，生成沉淀；将沉淀烘干，按照预定LaxSrCoO的化学式加入理论化学计量比的LaO、CoO和SrCO，混合后润湿，研磨；然后烧结，冷却得到LaxSrCoO复合氧化物。本发明结合固相和液相方法的优点，通过部分沉淀反应物在固相合成中有一部分氧化物或氢氧化物以非晶态的形式存在，从而提高固相合成中界面反应的速度，促进反应物的彼此渗透，降低合成温度，从而避免原料的损失及对环境的污染。本方法步骤简单，反应条件容易控制，适用于工业化规模化生产。
Method for preparing LaxSr1-xCoO3-delta composite oxide
The invention belongs to the technical field of semiconductor materials, and particularly discloses a method for preparing a LaxSr1-xCoO3-delta composite oxide, which comprises the following steps: dissolving La(NO3)3.6H2O or Co(NO3)2.6H2O in water, adding a precipitant to generate a precipitate, drying the precipitate, adding La2O3, CoO and SrCO3 in a theoretical stoichiometric ratio according tothe chemical formula of predetermined LaxSr1-xCoO3, mixing, wetting, grinding, sintering and cooling, such that the LaxSr1-xCoO3-delta composite oxide is obtained. According to the method, the advantages of a solid-phase method and a liquid-phase method are combined, a part of oxide or hydroxide exists in an amorphous state in solid-phase synthesis through a part of precipitation reactants, so that the speed of an interface reaction in solid-phase synthesis is increased, mutual permeation of the reactants is promoted, the synthesis temperature is reduced, and loss of raw materials and pollution to the environment are avoided. The method has the advantages of simple steps and easily controlled reaction conditions, and is suitable for industrial large-scale production.
本发明属于半导体材料技术领域，具体公开了一种制备LaSrCoO复合氧化物的方法，包括如下步骤：将La(NO)·6HO或Co(NO)·6HO溶于水中，加入沉淀剂，生成沉淀；将沉淀烘干，按照预定LaxSrCoO的化学式加入理论化学计量比的LaO、CoO和SrCO，混合后润湿，研磨；然后烧结，冷却得到LaxSrCoO复合氧化物。本发明结合固相和液相方法的优点，通过部分沉淀反应物在固相合成中有一部分氧化物或氢氧化物以非晶态的形式存在，从而提高固相合成中界面反应的速度，促进反应物的彼此渗透，降低合成温度，从而避免原料的损失及对环境的污染。本方法步骤简单，反应条件容易控制，适用于工业化规模化生产。
Method for preparing LaxSr1-xCoO3-delta composite oxide
一种制备LaSrCoO复合氧化物的方法
CUI YUEHUA (Autor:in) / ZHANG XIANGHUA (Autor:in) / LIU XIAO (Autor:in) / LAN XIAOSONG (Autor:in) / ZHONG YUQI (Autor:in) / LIU MING (Autor:in)
28.07.2020
Patent
Elektronische Ressource
Chinesisch
Microstructure development in (LaxSr1-x)MnO3 ceramics
| British Library Online Contents | 2004
| Europäisches Patentamt | 2023
| Europäisches Patentamt | 2023