[article]
Titre : |
Continuous hydrothermal synthesis of Fe2O3 nanoparticles using a central collision - type micromixer for rapid and homogeneous nucleation at 673 K and 30 MPa |
Type de document : |
texte imprimé |
Auteurs : |
Kiwamu Sue, Auteur ; Toshiyuki Sato, Auteur ; Shin-ichiro Kawasaki, Auteur |
Année de publication : |
2010 |
Article en page(s) : |
pp. 8841–8846 |
Note générale : |
Industrial chemistry |
Langues : |
Anglais (eng) |
Mots-clés : |
Nanoparticles Micromixer |
Résumé : |
Continuous hydrothermal synthesis of Fe2O3 nanoparticles was carried out at 673 K and 30 MPa. Two types of mixers, a conventional T-type micromixer and a central collision-type micromixer (CCM), were used for the synthesis. CCM was newly fabricated on the basis of the concept for preventing heterogeneous nucleation induced on the inner wall of the mixer. Residence time and Fe(NO3)3 molality of the starting solution varied from 0.1 to 1.0 s and 0.05 to 0.50 mol/kg, respectively. Effects of the mixer structure, the residence time, and the Fe(NO3)3 molality on crystal structure, Fe3+ conversion, average particle size, and size distribution were discussed. CCM effectively worked for producing smaller Fe2O3 nanoparticles with narrow and monomodal distribution. |
ISSN : |
0888-5885 |
En ligne : |
http://pubs.acs.org/doi/abs/10.1021/ie1008597 |
in Industrial & engineering chemistry research > Vol. 49 N° 18 (Septembre 2010) . - pp. 8841–8846
[article] Continuous hydrothermal synthesis of Fe2O3 nanoparticles using a central collision - type micromixer for rapid and homogeneous nucleation at 673 K and 30 MPa [texte imprimé] / Kiwamu Sue, Auteur ; Toshiyuki Sato, Auteur ; Shin-ichiro Kawasaki, Auteur . - 2010 . - pp. 8841–8846. Industrial chemistry Langues : Anglais ( eng) in Industrial & engineering chemistry research > Vol. 49 N° 18 (Septembre 2010) . - pp. 8841–8846
Mots-clés : |
Nanoparticles Micromixer |
Résumé : |
Continuous hydrothermal synthesis of Fe2O3 nanoparticles was carried out at 673 K and 30 MPa. Two types of mixers, a conventional T-type micromixer and a central collision-type micromixer (CCM), were used for the synthesis. CCM was newly fabricated on the basis of the concept for preventing heterogeneous nucleation induced on the inner wall of the mixer. Residence time and Fe(NO3)3 molality of the starting solution varied from 0.1 to 1.0 s and 0.05 to 0.50 mol/kg, respectively. Effects of the mixer structure, the residence time, and the Fe(NO3)3 molality on crystal structure, Fe3+ conversion, average particle size, and size distribution were discussed. CCM effectively worked for producing smaller Fe2O3 nanoparticles with narrow and monomodal distribution. |
ISSN : |
0888-5885 |
En ligne : |
http://pubs.acs.org/doi/abs/10.1021/ie1008597 |
|