Synthesis of α‐cobalt(ii) hydroxide using ultrasound radiation
2000; Royal Society of Chemistry; Volume: 10; Issue: 2 Linguagem: Inglês
10.1039/a908065a
ISSN1364-5501
AutoresP. Jeevanandam, Yu. Koltypin, Aharon Gedanken, Yitzhak Mastai,
Tópico(s)Catalysis and Oxidation Reactions
ResumoCobalt hydroxide with an interlayer spacing of 7.53 Å and needle-like morphology has been synthesized with the aid of ultrasound radiation. Characterization by powder X-ray diffraction, transmission electron microscopy, thermogravimetric analysis, FT-IR spectroscopy, as well as elemental analysis, indicates the formation of α-cobalt hydroxide. Thermal decomposition of the hydroxide at 300 °C under air or argon yields nanometer-sized oxide particles of Co3O4 (ca. 9 nm) and CoO (ca. 6 nm), respectively.
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