Microstructure and magnetic property of Fe–Co nanoparticles prepared by chemical vapor condensation process

2003 ◽  
Vol 351 (1-2) ◽  
pp. 319-323 ◽  
Author(s):  
Z.H Wang ◽  
C.J Choi ◽  
B.K Kim ◽  
J.C Kim ◽  
Z.D Zhang
2013 ◽  
Vol 233 ◽  
pp. 131-136 ◽  
Author(s):  
Eunseuk Park ◽  
Sungmin Chin ◽  
Yeon Seok Kim ◽  
Gwi-Nam Bae ◽  
Jongsoo Jurng

2006 ◽  
Vol 317-318 ◽  
pp. 219-222 ◽  
Author(s):  
C.W. Lee ◽  
S.G. Kim ◽  
Jai Sung Lee

The influence of reaction temperature on phase evolution of iron oxide hollow nanoparticles during chemical vapor condensation (CVC) process using iron acetylacetonate was investigated. X-ray diffraction (XRD) analyses revealed that three iron oxide phases (α-Fe2O3, γ-Fe2O3, and Fe3O4) and a mixture of β-Fe2O3 and small amount of γ-Fe2O3 were synthesized at 700oC and 900oC, respectively. TEM observation disclosed that the iron oxide particles are almost composed of hollow structured nanoparticles of 10~20 nm in size and 3~5 nm in shell thickness. This result implies that reaction temperature determining various reaction parameters plays an important role for the phase- and structural evolutions of iron oxide hollow nanoparticles. Especially, the present investigation attempted to explain temperature dependence of the phase evolution of β-Fe2O3 hollow nanoparticles in association with the decomposition of iron acetylacetonate.


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