Electron transfer phase transition and oxidization process in Na<sub><i>x</i></sub>Co<sub>0.44</sub>Mn<sub>0.56</sub>[Fe(CN)<sub>6</sub>]<sub>0.90</sub> (0.00 ? <i>x</i> ? 1.60)
Electron transfer phase transition and oxidization process in Na<sub><i>x</i></sub>Co<sub>0.44</sub>Mn<sub>0.56</sub>[Fe(CN)<sub>6</sub>]<sub>0.90</sub> (0.00 ? <i>x</i> ? 1.60)
复制标题
Na<sub><i>x</i></sub>Co<sub>0.44</sub>Mn<sub>0.56</sub>[Fe(CN)<sub>中电子转移相变及氧化过程
DOI：
10.1039/d1cc05727h
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发表时间：
2021
影响因子：
4.9
通讯作者：
Moritomo Yutaka
中科院分区：
文献类型：
--
作者：
Iwaizumi Hiroki;Shibata Takayuki;Moritomo Yutaka
研究了NaxCo0.44Mn0.56[Fe（CN）6]0.90在0.00 ≤ x ≤ 1.60的整个Na浓度范围内的相图。我们发现该化合物在0.19 ≤ x ≤ 1.38的宽x范围内表现出电子转移（ET）相变。扩展的ET模型很好地再现了相变时[Fe 2+（CN）6]4-和[Fe 3+（CN）6]3-浓度的变化。ET相变逆转了化合物的氧化过程;该过程在低（高）温相中依次为Co、Mn和Fe（Fe、Mn和Co）。
We investigated the phase diagram of NaxCo0.44Mn0.56[Fe(CN)6]0.90 in the entire Na concentration range of 0.00 ≤ x ≤ 1.60. We found that the compound shows an electron transfer (ET) phase transition in a wide x range of 0.19 ≤ x ≤ 1.38. The extended ET model well reproduces the variation of the [Fe2+(CN)6]4− and [Fe3+(CN)6]3− concentration at the phase transition. The ET phase transition reverses the oxidation process of the compound; the process is in the order of Co, Mn, and Fe (Fe, Mn, and Co) in the low (high) temperature phase.