Electrochemical capacitor of MnFe2O4 with NaCl electrolyte

被引：94

作者：

Kuo, SL ^{[1
]}

Wu, NL ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Chem Engn, Taipei 106, Taiwan

来源：

ELECTROCHEMICAL AND SOLID STATE LETTERS | 2005年 / 8卷 / 10期

关键词：

D O I：

10.1149/1.2008847

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Ferrites including MFe2O4 where M = Mn, Fe, Co, or Ni have been synthesized by solution methods and tested for their capacitive behaviors in aqueous NaCl solution. MnFe2O4 has been found to exhibit unusually large capacitances, while the other ferrites do not. The results indicate unique pseudocapacitive property associated with the Mn+2 ions at the tetrahedral sites in the spinel structure. The pseudocapacitance was observed only for crystalline, rather than amorphous, MnFe2O4 phase, which has exhibited specific capacitances of > 100 F/g and high-power delivering capabilities of > 10 kW/ kg. (c) 2005 The Electrochemical Society.

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收藏

页码：A495 / A499

页数：5

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