Effects of cobalt replacement by nickel, manganese, aluminium and iron on the crystallographic and electrochemical properties of AB_5 -type alloys

S. Vivet; J.-M. Joubert; B. Knosp

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Effects of cobalt replacement by nickel, manganese, aluminium and iron on the crystallographic and electrochemical properties of AB_5 -type alloys

机译：镍，锰，铝和铁置换钴对AB_5型合金的晶体学和电化学性能的影响

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Cobalt has been partially or totally replaced by other elements such as Ni, Mn, Al or Fe in MmNi_(4.07)Mn_(0.63)Al_(0.2)Co_(0.4) composition in order to evaluate the effects on microstructure and electrochemical properties (capacity, cycle life, corrosion...). The cycle life of the electrodes for which cobalt has been replaced by nickel or manganese is strongly diminished. However, interestingly, Fe-containing electrodes behave as well as Co-containing electrodes in terms of cycle life, despite a slight capacity reduction. Moreover, the SEM picture revealed that in a similar way to Co, Fe reduces the alloy pulverisation during cycling. This result is in agreement with a low discrete lattice expansion for these Fe-containing alloys.

机译：MmNi_（4.07）Mn_（0.63）Al_（0.2）Co_（0.4）成分中的钴已被其他元素（例如Ni，Mn，Al或Fe）部分或全部替代，以评估其对微观结构和电化学性能（容量）的影响，循环寿命，腐蚀...）。钴已被镍或锰替代的电极的循环寿命会大大缩短。然而，有趣的是，尽管容量略有降低，但在循环寿命方面，含铁电极的性能与含钴电极相同。此外，SEM照片显示，Fe以类似于Co的方式减少了循环过程中的合金粉化。该结果与这些含铁合金的低离散晶格膨胀一致。

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《Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics》 |2003年第0期|共5页
作者
S. Vivet; J.-M. Joubert; B. Knosp;
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正文语种 eng
中图分类合金学与各种性质合金;
关键词
Intermetallics; Hydrogen storage materials; X-Ray diffraction; Electrochemical reactions;

机译：金属间化合物;储氢材料;X射线衍射;电化学反应;

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1. Effects of cobalt replacement by nickel, manganese, aluminium and iron on the crystallographic and electrochemical properties of AB_5 -type alloys [J] . S. Vivet, J.-M. Joubert, B. Knosp Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2003,第0期

机译：镍，锰，铝和铁置换钴对AB_5型合金的晶体学和电化学性能的影响
2. Effects of Cobalt Content and Preparation on Electrochemical Capacity of AB_5 -Type Hydrogen Storage Alloys at Different Temperature [J] . Li Rong, Wu Jianmin, Zhou Shaoxiong Journal of rare earths . 2006,第3期

机译：钴含量和制备对AB_5型储氢合金在不同温度下电化学容量的影响
3. Effects of Cobalt Content and Preparation on Electrochemical Capacity of AB_5 -Type Hydrogen Storage Alloys at Different Temperature [J] . Li Rong, Wu Jianmin, Zhou Shaoxiong Journal of rare earths . 2006,第3期

机译：不同温度下钴含量和制备对AB_5型储氢合金电化学容量的影响
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Effects of cobalt replacement by nickel, manganese, aluminium and iron on the crystallographic and electrochemical properties of AB_5 -type alloys

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