Preface

Klabunde, Kenneth J.

doi:10.1016/b978-0-12-410750-2.50003-4

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2010

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“…Iron nanoparticles by CLD method were obtained 15,16 . The clusters were prepared by resistive evaporation of metallic iron, followed by a fast cocondensation at 77 K with several organic solvents (ethanol, 2-propanol and 2-methoxyethanol).…”

Section: Introductionmentioning

confidence: 99%

Iron Colloids Prepared by Chemical Liquid Deposition

G¹

2010

J. Chil. Chem. Soc.

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Iron colloids were prepared by cocondensation of the metal at 77K with ethanol, 2-propanol and 2-methoxyethanol. The distribution of particle sizes was determined by transmission electron microscopy.The particle size of the colloidal dispersions ranges from 3.94 nm for Fe-ethanol and 6.70 nm for Fe-methoxyethanol. Electron diffraction was carried out for Fe-2-propanol colloids and exhibit the presence of FeO.Electrophoretic measurements such as colloid charge and zeta potential were achieved. lt was found that the colloids possess electrical charge, therefore it is postulated that their stability is by simple solvatation. The colloids showed very high stability at room temperature, being over 30 days.In some colloids absorption bands in the UV region were observed. A band at 201 nm and the band at 320 nm is due to the absorption of metal-metal. In the visible region no plasma absorption was found.

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Section: Introductionmentioning

confidence: 99%

Iron Colloids Prepared by Chemical Liquid Deposition

G¹

2010

J. Chil. Chem. Soc.

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Iron Colloids Prepared by Chemical Liquid Deposition

Iron Colloids Prepared by Chemical Liquid Deposition

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