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Interaction of κ-Carrageenan with Nickel, Cobalt, and Iron Hydroxides

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2000

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Jones, Franca
Antonietti, Markus

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Biomacromolecules. 2000, 1(4), pp. 556-563. ISSN 1525-7797. eISSN 1526-4602. Available under: doi: 10.1021/bm0055089

Zusammenfassung

In a previous paper, it was shown that the functional polysaccharide κ-carrageenan acts as an efficient stabilizer to prevent the precipitation of iron oxides and hydroxides up to very high pH values (Jones, et al. Colloid Polym. Sci. 2000, 278, 491−501). Here, this process was investigated for its application to synthesize stable cobalt and nickel oxide particles. Nickel hydroxide nanoparticles were well stabilized for long periods, while the hydroxide of cobalt(II), although initially stable at pH 13, progressively showed some complex structure rearrangement, invoked by alkaline oxidation of the primary particles. The final product of this oxidation/self-assembly process are spherical, fluffy superstructures of cobalt(III) oxide platelets with an overall diameter of 12 μm, in coexistence with 65−75% of free κ-carrageenan.

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ISO 690JONES, Franca, Helmut CÖLFEN, Markus ANTONIETTI, 2000. Interaction of κ-Carrageenan with Nickel, Cobalt, and Iron Hydroxides. In: Biomacromolecules. 2000, 1(4), pp. 556-563. ISSN 1525-7797. eISSN 1526-4602. Available under: doi: 10.1021/bm0055089
BibTex
@article{Jones2000Inter-40695,
  year={2000},
  doi={10.1021/bm0055089},
  title={Interaction of κ-Carrageenan with Nickel, Cobalt, and Iron Hydroxides},
  number={4},
  volume={1},
  issn={1525-7797},
  journal={Biomacromolecules},
  pages={556--563},
  author={Jones, Franca and Cölfen, Helmut and Antonietti, Markus}
}
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