Abstract
Ni/NiFe2O4 composites have been successfully prepared by calcination at 400°C in air of the mixture K3[Fe(ox) 3]·2.5H2O and NiCl2·6H 2O with a molar ratio of 0.7-2. The products are featured by the Ni crystallite size of 15-34nm, BET surface area of 23-41m2/g and variable Ni loadings. TGA and FTIR results indicate in situ generation of CO molecules from decomposition of K3[Fe(ox)3]·2. 5H2O. These in situ generated CO molecules account for the formation of Ni nanoparticles by reduction of Ni(II) ions.
Original language | English |
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Pages (from-to) | 4368-4371 |
Number of pages | 4 |
Journal | Journal of Solid State Chemistry |
Volume | 177 |
Issue number | 11 |
DOIs | |
State | Published - Nov 2004 |
Externally published | Yes |
Keywords
- Ferrites
- Precursor
- Supported Ni catalysts
- TG-FTIR
- Thermal decomposition