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Citation: Yang Hong-Ping, Wang Xian-You, Wang Xing-Yan, Huang Wei-Guo, Luo Xu-Fang, Zhuo Hai-Tao. Preparation and Performance of Electrode Materials for Super-iron (VI) Battery[J]. Acta Physico-Chimica Sinica, ;2003, 19(12): 1150-1153. doi: 10.3866/PKU.WHXB20031212 shu

Preparation and Performance of Electrode Materials for Super-iron (VI) Battery

1.
College of Chemistry, Xiangtan University, Xiangtan　411105

Received Date: 29 May 2003
Available Online: 15 December 2003

The solubility and stability of potassium ferrate(VI) and barium ferrate(VI) in 7 mol•L－1 KOH solution were investigated. It was found that the solubility of ferrates (VI) compounds increased and the stability decreased with increasing temperature. The structures and morphology of the potassium ferrate and barium ferrate were examined by IR、XRD and SEM, and the results showed that they were orthorhombic crystal with space group D2h(Pnma) and consisted of sub-micron to nanometer particles(50～165 nm). The discharge results of Zn-BaFeO4 and Zn-K2FeO4 batteries displayed that the former has a double discharge capacity than the latter, and the discharge voltage plateau of the former is 170～220 mV higher than that of the latter.
- Ferrates;Structure examination;Stability;Solubility;Positive electrode material;Super-iron battery
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