Hydration of sodium cobalt oxide

Hiroya Sakurai; Minoru Osada; Eiji Takayama-Muromachi

doi:10.1021/cm0714786

Hydration of sodium cobalt oxide

Hiroya Sakurai^*, Minoru Osada, Eiji Takayama-Muromachi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

It was found that Na⁺ ions in Na_xCoO₂ can be partially substituted by H₃O⁺ ions while maintaining a constant Co valence simply by immersion in water. The magnetic susceptibility of Na_x(H₃O)_zCoO₂ (x + Z = 0.70) changed drastically from Curie-Weiss type to Pauli paramagnetic type, indicating that the electronic band structure was modified by the isovalent ion substitution of Na⁺/H₃O⁺. Two possible origins of the change in the electronic structure are discussed.

Original language	English
Pages (from-to)	6073-6076
Number of pages	4
Journal	Chemistry of Materials
Volume	19
Issue number	25
DOIs	https://doi.org/10.1021/cm0714786
Publication status	Published - 2007 Dec 11
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Materials Chemistry

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abstract = "It was found that Na+ ions in NaxCoO2 can be partially substituted by H3O+ ions while maintaining a constant Co valence simply by immersion in water. The magnetic susceptibility of Nax(H3O)zCoO2 (x + Z = 0.70) changed drastically from Curie-Weiss type to Pauli paramagnetic type, indicating that the electronic band structure was modified by the isovalent ion substitution of Na+/H3O+. Two possible origins of the change in the electronic structure are discussed.",

author = "Hiroya Sakurai and Minoru Osada and Eiji Takayama-Muromachi",

year = "2007",

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AU - Sakurai, Hiroya

AU - Osada, Minoru

AU - Takayama-Muromachi, Eiji

PY - 2007/12/11

Y1 - 2007/12/11

N2 - It was found that Na+ ions in NaxCoO2 can be partially substituted by H3O+ ions while maintaining a constant Co valence simply by immersion in water. The magnetic susceptibility of Nax(H3O)zCoO2 (x + Z = 0.70) changed drastically from Curie-Weiss type to Pauli paramagnetic type, indicating that the electronic band structure was modified by the isovalent ion substitution of Na+/H3O+. Two possible origins of the change in the electronic structure are discussed.

AB - It was found that Na+ ions in NaxCoO2 can be partially substituted by H3O+ ions while maintaining a constant Co valence simply by immersion in water. The magnetic susceptibility of Nax(H3O)zCoO2 (x + Z = 0.70) changed drastically from Curie-Weiss type to Pauli paramagnetic type, indicating that the electronic band structure was modified by the isovalent ion substitution of Na+/H3O+. Two possible origins of the change in the electronic structure are discussed.

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JF - Chemistry of Materials

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Hydration of sodium cobalt oxide

Abstract

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