scholarly journals A novel rapid-combustion process for the preparation of magnetic α-Fe2O3 nanoparticles

AIP Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 125027
Author(s):  
Min Liu ◽  
Wei Huang ◽  
Zhou Wang ◽  
Shengwei Wu ◽  
Ruijiang Liu
Keyword(s):  
Combustion Process ◽  
Fe2o3 Nanoparticles ◽  
Rapid Combustion

A Novel Type of Magnetic Fe2O3/Fe3O4 Heterogeneous Microparticles Prepared via the Ethanol-Water Reflux and Rapid Combustion Process

2020 ◽  
Vol 20 (5) ◽  
pp. 2998-3003
Author(s):  
Jia Liu ◽  
Zhou Wang ◽  
Yanyan Wang
Keyword(s):  
Grain Size ◽  
Magnetic Properties ◽  
Saturation Magnetization ◽  
Calcination Temperature ◽  
Ethyl Alcohol ◽  
Combustion Process ◽  
Key Factors ◽  
Absolute Ethyl Alcohol ◽  
Grain Sizes ◽  
Rapid Combustion

A novel type of magnetic Fe2O3/Fe3O4 heterogeneous microparticles with ellipsoidal macropores was prepared via the ethanol-water reflux and rapid combustion process. The experimental results showed that the volume of absolute ethyl alcohol and the calcination temperature were the key factors to the grain sizes and the magnetic properties, the calcination temperature largely affected the saturation magnetization and the grain size of Fe2O3/Fe3O4 heterogeneous microparticles, and the amount of absolute ethyl alcohol also tremendously affected the saturation magnetization, however, the amount of absolute ethyl alcohol affected little on the grain size. Fe2O3/Fe3O4 heterogeneous microparticles calcined at 200 °C for 1 h with absolute ethyl alcohol of 20 mL had the largest saturation magnetization of 90.1 Am2/kg.

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