Synthesis and Structure of the Monolayer Hydrate K03CoO2 x 04H2O

S. Park; Y. Lee; W. Si; T. Vogt

doi:10.1016/j.ssc.2005.03.007

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arXiv · cond-mat/0503165

Synthesis and Structure of the Monolayer Hydrate K03CoO2 x 04H2O

S. Park·Y. Lee·W. Si·T. Vogt

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Abstract

The monolayer hydrate (MLH) K03CoO2 x 04H2O was synthesized from K06CoO2 by extracting K+ cations using K2S2O8 as an oxidant and the subsequent intercalation of water between the layers of edge-sharing CoO6 octahedra. A hexagonal structure (space group P63/mmc) with lattice parameters a = 2.8262(1) Angstrom, c = 13.8269(6) Angstrom similar to the MLH Na036CoO2 x 07H2O was established using high-resolution synchrotron X-ray powder diffraction data. The K/H2O layer in the K-MLH is disordered, which is in contrast to the Na-MLH. At low temperatures metallic and paramagnetic behavior was found.

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S. Park, Y. Lee, W. Si, T. Vogt. 2005-03-07. Synthesis and Structure of the Monolayer Hydrate K03CoO2 x 04H2O. https://doi.org/10.1016/j.ssc.2005.03.007

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