Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of double perovskite Sr2FeMoO6 nano-material
The invention discloses a preparation method of a double perovskite Sr2FeMoO6 nano-material. The method comprises the following steps: 1, respectively weighing raw materials comprising SrCO3, Fe powder and Mo powder according to the stoichiometric ratio of Sr2FeMoO6, adding the raw materials to a diluted nitric acid solution, and fully stirring for complete dissolving and uniform mixing of the raw materials; 2, adding citric acid to the solution prepared in step 1, and uniformly mixing; 3, fully reacting the solution prepared in step 2 in a 40-60DEG C water bath for 4.5-5.5h, drying at 70-90DEG C to obtain powder, and calcining the obtained powder at 210-230DEG C to obtain flour; and 4, fully grinding the flour obtained in step 3, reacting the flour at 710-730DEG C for 9.5-10.5h, fully grinding the obtained flower, tabletting, and carrying out high temperature sintering on obtained tablets in H2/Ar mixed atmosphere with a volume percentage ratio of 9%/95% at 110-130DEG C under a flow of 30-50ml/min for 11.5-12.5h to prepare the double perovskite Sr2FeMoO6 nano-material. The double perovskite Sr2FeMoO6 nano-material prepared in the invention has the advantages of high purity, uniform and nanometer level particles, cheap and easily available raw materials, and simple synthesis process.
Preparation method of double perovskite Sr2FeMoO6 nano-material
The invention discloses a preparation method of a double perovskite Sr2FeMoO6 nano-material. The method comprises the following steps: 1, respectively weighing raw materials comprising SrCO3, Fe powder and Mo powder according to the stoichiometric ratio of Sr2FeMoO6, adding the raw materials to a diluted nitric acid solution, and fully stirring for complete dissolving and uniform mixing of the raw materials; 2, adding citric acid to the solution prepared in step 1, and uniformly mixing; 3, fully reacting the solution prepared in step 2 in a 40-60DEG C water bath for 4.5-5.5h, drying at 70-90DEG C to obtain powder, and calcining the obtained powder at 210-230DEG C to obtain flour; and 4, fully grinding the flour obtained in step 3, reacting the flour at 710-730DEG C for 9.5-10.5h, fully grinding the obtained flower, tabletting, and carrying out high temperature sintering on obtained tablets in H2/Ar mixed atmosphere with a volume percentage ratio of 9%/95% at 110-130DEG C under a flow of 30-50ml/min for 11.5-12.5h to prepare the double perovskite Sr2FeMoO6 nano-material. The double perovskite Sr2FeMoO6 nano-material prepared in the invention has the advantages of high purity, uniform and nanometer level particles, cheap and easily available raw materials, and simple synthesis process.
Preparation method of double perovskite Sr2FeMoO6 nano-material
HU YANCHUN (Autor:in) / ZHANG KELEI (Autor:in) / WANG XIANWEI (Autor:in) / CUI YAWEN (Autor:in) / GUO XINGXING (Autor:in) / LI WANWAN (Autor:in) / LIU WENHUI (Autor:in)
22.04.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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