通过钴L边和氧K边X射线吸收近边结构研究锂离子从LiCoO₂中脱嵌时的电子结构变化。
Changes in electronic structure by Li ion deintercalation in LiCoO2 from cobalt L-edge and oxygen K-edge XANES.
作者信息
Uchimoto Y, Sawada H, Yao T
机构信息
Department of Fundamental Energy Science, Graduate School of Energy Science, Kyoto University, Japan.
出版信息
J Synchrotron Radiat. 2001 Mar 1;8(Pt 2):872-3. doi: 10.1107/s0909049500020938.
Cobalt L-edge and oxygen K-edge X-ray Absorption Near Edge Structure (XANES) investigated change in electronic structure by electrochemical lithium ion de-intercalation in LiCoO2. The Co L-edge XANES of Li(1-x)CoO2 did not show any chemical shift even at high x value. The oxygen K-edge XANES of Li(1-x)CoO2 indicated that the holes compensating the lithium ion deintercalation are located primarily in the oxygen 2p states rather than in the Co 3d states.
通过对LiCoO₂中锂离子进行电化学脱嵌，利用钴L边和氧K边X射线吸收近边结构（XANES）研究电子结构的变化。即使在高x值时，Li(1-x)CoO₂的Co L边XANES也未显示出任何化学位移。Li(1-x)CoO₂的氧K边XANES表明，补偿锂离子脱嵌的空穴主要位于氧2p态而非钴3d态。
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