Screening and further investigations on promising bi-functional catalysts for metal-air batteries with an aqueous alkaline electrolyte

被引：0
|
作者：
机构：
[1] Wittmaier, Dennis
[2] 1,2,Danner, Timo
[3] Wagner, Norbert
[4] 1,Friedrich, K. Andreas
来源：
Wittmaier, D. (dennis.wittmaier@dlr.de) | 1600年 / Kluwer Academic Publishers卷 / 44期
关键词：
A wide range catalyst screening with noble metal and oxide catalysts for a metal-air battery with an aqueous alkaline electrolyte was carried out. Suitable catalysts reduce overpotentials during the charge and discharge process; and therefore improve the round-trip efficiency of the battery. In this case; the electrodes will be used as optimized cathodes for a future lithium-air battery with an aqueous alkaline electrolyte. Oxide catalysts were synthesized via atmospheric plasma spraying. The screening showed that IrO2; RuO; 2; La0.6Ca0.4Co3; Mn; 3O4; and Co3O4 are promising bi-functional catalysts. Considering the high price for the noble metal catalysts further investigations of the oxide catalysts were carried out to analyze their electrochemical behavior at varied temperatures; molarities; and in case of La1-x Ca x CoO3 a varying calcium content. Additionally all catalysts were tested in a longterm test to proof cyclability at varied molarities. Further investigations showed that Co 3O4 seems to be the most promising bi-functional catalyst of the tested oxide catalysts. Furthermore; it was shown that a calcium content of x = 0.4 in LCCO has the best performance. © 2013 Springer Science+Business Media Dordrecht;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
相关论文
共 34 条
  • [31] Heteroatom anchors Fe-Mn dual-atom catalysts with bi-functional oxygen catalytic activity for low-temperature rechargeable flexible Zn-air batteries
    Yuting He
    Hongtao Li
    Yi Wang
    Yufei Jia
    Yongning Liu
    Qiang Tan
    Journal of Energy Chemistry, 2024, 90 (03) : 610 - 620
  • [32] Asymmetric aqueous Zn-air battery with high voltage of 2.16 V by metal organic framework derived Co-Nx based bi-functional electrocatalyst as cathode
    Wang, Lusha
    Jia, Minghui
    Xu, Xinxin
    Wang, Qiang
    JOURNAL OF POWER SOURCES, 2019, 437
  • [33] Synergistically enhancing interface stability with soft gel and garnet-type Li6.4La3Zr1.4Ta0.6O12 bi-functional composite electrolyte of lithium metal batteries
    Wang, Qiujun
    Wang, Yaqing
    Bai, Nana
    Zhu, Weiqi
    Zhang, Di
    Li, Zhaojin
    Sun, Huilan
    Sun, Qujiang
    Wang, Bo
    Fan, Li-Zhen
    MATERIALS CHEMISTRY FRONTIERS, 2024, 8 (12) : 2428 - 2438
  • [34] Nitrogen-doped carbon shell armored 'Janus' Co/Co9S8 heterojunction as robust bi-functional oxygen reduction reaction/oxygen evolution reaction catalysts in seawater-based rechargeable Zn-air batteries
    Qiao, Li
    Wang, Xingkun
    Xu, Ren
    Zhang, Canhui
    Chen, Kaiyue
    Tong, Kecheng
    Wang, Huanlei
    Dai, Shuixing
    Chu, Lei
    Huang, Minghua
    MATERIALS TODAY ENERGY, 2023, 37
1234