Physical characteristics, electrochemical behavior, and stability of BaFeO4

被引：22
作者：
Yang, WH
Wang, JM [1 ]
Pan, T
Cao, F
Zhang, JQ
Cao, CN
机构：
[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Peoples R China
[2] Huaqiao Univ, Coll Mat Sci & Engn, Quanzhou 362011, Peoples R China
[3] Chinese Acad Sci, State Key Lab Corros & Protect, Shenyang 110015, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2004年 / 49卷 / 21期
基金：
中国国家自然科学基金;
关键词：
BaFeO4; electrode; electrochemical performance; stability;
D O I：
10.1016/j.electacta.2004.03.013
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
In this study, BaFeO4 was prepared from K2FeO4 and characterized by SEM, XRD, IR, and TG. BaFeO4 is insoluble in pure water and it solubility increases with the increase in the concentration of KOH solution. The measured solubility of BaFeO4 is higher than that of K2FeO4 in saturated KOH solution at 25 degreesC, and may be due to the presence of a higher concentration of carbonate in the concentrated KOH solution. BaFeO4 has been found to decompose both in dry environment and in KOH solution. The instability of BaFeO4 is studied in detail by mean 3 of constant current discharge, XPS, XRD, and IR spectra. The reason why BaFeO4 is not stable is discussed in this paper. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3455 / 3461
页数：7
相关论文
共 15 条
[1]   Solid phase modifiers of the Fe(VI) cathode: effects on the super-iron battery [J].
Licht, S ;
Wang, BH ;
Xu, G ;
Li, J ;
Naschitz, V .
ELECTROCHEMISTRY COMMUNICATIONS, 1999, 1 (11) :527-531
[2]   Energetic iron(VI) chemistry: The super-iron battery [J].
Licht, S ;
Wang, BH ;
Ghosh, S .
SCIENCE, 1999, 285 (5430) :1039-1042
[3]   Silver mediation of Fe(VI) charge transfer:: Activation of the K2FeO4 super-iron cathode [J].
Licht, S ;
Naschitz, V ;
Ghosh, S .
JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (23) :5947-5955
[4]   Enhanced Fe(VI) cathode conductance and charge transfer: effects on the super-iron battery [J].
Licht, S ;
Wang, BH ;
Ghosh, S ;
Li, J ;
Tel-Vered, R .
ELECTROCHEMISTRY COMMUNICATIONS, 2000, 2 (07) :535-540
[5]   Insoluble Fe(VI) compounds: effects on the super-iron battery [J].
Licht, S ;
Wang, BH ;
Gosh, S ;
Li, J ;
Naschitz, V .
ELECTROCHEMISTRY COMMUNICATIONS, 1999, 1 (11) :522-526
[6]   Rapid chemical synthesis of the barium ferrate super-iron Fe(VI) compound, BaFeO4 [J].
Licht, S ;
Naschitz, V ;
Wang, BH .
JOURNAL OF POWER SOURCES, 2002, 109 (01) :67-70
[7]   Fe(VI) catalyzed manganese redox chemistry: Permanganate and super-iron alkaline batteries [J].
Licht, S ;
Ghosh, S ;
Naschitz, V ;
Halperin, N ;
Halperin, L .
JOURNAL OF PHYSICAL CHEMISTRY B, 2001, 105 (48) :11933-11936
[8]   Analysis of ferrate(VI) compounds and super-iron Fe(VI) battery cathodes: FTIR, ICP, titrimetric, XRD, UV/VIS, and electrochemical characterization [J].
Licht, S ;
Naschitz, V ;
Halperin, L ;
Halperin, N ;
Lin, L ;
Chen, JJ ;
Ghosh, S ;
Liu, B .
JOURNAL OF POWER SOURCES, 2001, 101 (02) :167-176
[9]   Chemical synthesis of battery grade super-iron barium and potassium Fe(VI) ferrate compounds [J].
Licht, S ;
Naschitz, V ;
Liu, B ;
Ghosh, S ;
Halperin, N ;
Halperin, L ;
Rozen, D .
JOURNAL OF POWER SOURCES, 2001, 99 (1-2) :7-14
[10]   SrFeO4:: Synthesis, Fe(II) characterization and the strontium super-iron battery [J].
Licht, S ;
Naschitz, V ;
Ghosh, S ;
Lin, L .
ELECTROCHEMISTRY COMMUNICATIONS, 2001, 3 (07) :340-345
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