Hydration of sodium cobalt oxide
Hydration of sodium cobalt oxide
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DOI:
10.1021/cm0714786
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发表时间:
2007-12-11
影响因子:
8.6
通讯作者:
Takayama-Muromachi, Eiji
中科院分区:
文献类型:
--
作者:
Sakurai, Hiroya;Osada, Minoru;Takayama-Muromachi, Eiji
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 Na-x(H3O)(z)CoO2 (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.