研究目的
To study the influence of reactants mixing in an impinging jets microreactor on the formation of single-phase nanocrystals of bismuth orthoferrite.
研究成果
The use of an impinging jets microreactor for the co-precipitation of bismuth and iron hydroxides followed by heat treatment at 420°С successfully produced single-phase BiFeO3 nanoparticles with a mean crystallite size of 17 nm. This method avoids the formation of admixture phases common in other synthesis methods.
研究不足
The study focused on the formation of BiFeO3 nanoparticles under specific conditions in an impinging jets microreactor, which may limit the generalizability of the findings to other synthesis methods or conditions.
1：Experimental Design and Method Selection:
The study involved the use of an impinging jets microreactor for the co-precipitation of bismuth and iron hydroxides, followed by heat treatment to form BiFeO3 nanoparticles.
2：Sample Selection and Data Sources:
Bismuth nitrate and iron nitrate were used as precursors, with KOH as the precipitating agent.
3：List of Experimental Equipment and Materials:
Included a Tescan Vega 3 SBH scanning electron microscope, Rigaku SmartLab 3 diffractometer, and STA 449 F3 Jupiter NETZSCH instrument for thermal analysis.
4：Experimental Procedures and Operational Workflow:
The reactants were mixed in the microreactor, followed by washing, drying, and heat treatment of the precipitate.
5：Data Analysis Methods:
X-ray diffraction, scanning electron microscopy, and thermal analysis were used to characterize the samples.
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