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材料工程  2020, Vol. 48 Issue (2): 46-52    DOI: 10.11868/j.issn.1001-4381.2018.001448
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
La-Mg-Ni系A5B19超晶格负极材料相结构及电化学性能
许剑轶1, 张国芳1, 胡峰1, 王瑞芬1, 寇勇2, 张胤1
1. 内蒙古科技大学 材料与冶金学院, 内蒙古 包头 014010;
2. 包钢(集团)公司, 内蒙古 包头 014010
Phase structure and electrochemical performance for super lattice La-Mg-Ni based A5B19 type negative materials
XU Jian-yi1, ZHANG Guo-fang1, HU Feng1, WANG Rui-fen1, KOU Yong2, ZHANG Yin1
1. School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, Inner Mongolia, China;
2. Baogang Group, Baotou 014010, Inner Mongolia, China
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摘要 感应熔炼制备La0.8-xCexMg0.2Ni3.8x=0,0.1,0.3,0.5),研究Ce替代部分La对La4MgNi19超晶格负极材料相结构及电化学性能的影响。研究表明,La4MgNi19合金相由LaNi5,(La,Mg)2Ni7,(La,Mg)5Ni19(3R-Ce5Co19)相组成。加入Ce后,(La,Mg)2Ni7相消失,出现2H-Pr5Co19结构的(La,Mg)5Ni19相,同时随着Ce替代量的增多,(La,Mg)5Ni19相含量增多,LaNi5相随之减少,Ce加入有利于形成A5B19相,特别是形成2H-Pr5Co19结构。电化学放电容量随着x值的增加呈现先增后减趋势,x=0.1时样品的电化学放电容量380.36 mAh/g最佳。合金电极活化次数、容量保持率和倍率放电性能随着Ce含量增加而增大。H在合金中的扩散速率是影响其倍率放电性能主要因素。
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许剑轶
张国芳
胡峰
王瑞芬
寇勇
张胤
关键词 La-Mg-Ni系A5B19超晶格负极材料稀土Ce替代电化学性能    
Abstract:The quaternary alloys La0.8-xCexMg0.2Ni3.8 (x=0, 0.1,0.3,0.5) were prepared by induction melting, and the effects of partial substitution of Ce for La on the phase structure and electrochemical performances of super lattice La4MgNi19 negative materials were investigated. Results show that La4MgNi19 alloys contain LaNi5 phase, (La,Mg)2Ni7(3R-Ce2Ni7 and 2H-Gd2Co7) phase, (La,Mg)5Ni19 (3R-Ce5Co19) phase. The 2H-Pr5Co19 type phase appears while (La,Mg)2Ni7 phase disappears, after partial substitution of Ce for La. The increase of Ce element substitution has led to an obvious increase of the abundance of A5B19 phase and decrease of AB5 phase accordingly. Ce contributes to the formation of A5B19 phase, especially 2H-Pr5Co19 type phase. With the increase of Ce content from 0 to 0.5, the maximum discharge capacity of alloy electroded increases firstly and then decreased. The x=0.1 alloy exhibits a maximum discharge capacity of 380.36 mAh/g. It is also found that this substitution has caused a significant increase in the activation number, the cyclic stability, high-rate discharge ability. The well performance demonstrates that it is the hydrogen diffusion in the alloy that controls the high rate discharge.
Key wordsLa-Mg-Ni based    super lattice A5B19 negative material    rare earth Ce substitution    electrochemical performance
收稿日期: 2018-12-13      出版日期: 2020-03-03
中图分类号:  TG139+.7  
  TG146.4  
通讯作者: 许剑轶(1974-),男,副教授,研究方向为功能材料,联系地址:内蒙古包头市昆区阿尔丁大街7号内蒙古科技大学材料与冶金学院(014010),E-mail:xujiany@yeah.net     E-mail: xujiany@yeah.net
引用本文:   
许剑轶, 张国芳, 胡峰, 王瑞芬, 寇勇, 张胤. La-Mg-Ni系A5B19超晶格负极材料相结构及电化学性能[J]. 材料工程, 2020, 48(2): 46-52.
XU Jian-yi, ZHANG Guo-fang, HU Feng, WANG Rui-fen, KOU Yong, ZHANG Yin. Phase structure and electrochemical performance for super lattice La-Mg-Ni based A5B19 type negative materials. Journal of Materials Engineering, 2020, 48(2): 46-52.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2018.001448      或      http://jme.biam.ac.cn/CN/Y2020/V48/I2/46
[1] KADIR K,SAKAI T,UEHARA I. Synthesis and structure determination of a new series of hydrogen storage alloys; RMg2Ni9 (R=La,Ce,Pr,Nd,Sm and Gd) built from MgNi2 Laves-type layers alternating with AB5 layers[J]. J Alloy and Comp,1997,257:115-121.
[2] MARTYNA D,MAREK N,MIECZYSLAW J,et al. Electrochemical characterization of nanocrystalline hydrogen storage La1.5Mg0.5Ni6.5Co0.5 alloy covered with amorphous nickel[J]. J Alloy and Comp,2019,780:697-704.
[3] 王瑞芬,张胤,许剑轶,等. 化学镀铜对贮氢合金La0.75Mg0.25Ni3.2Co0.2Al0.1电极性能的影响[J]. 材料工程,2013(5):44-49. WANG R F,ZHANG Y,XU J Y,et al. Effects of Cu-P coatings on electrochemical properties of La0.75Mg0.25Ni3.2Co0.2Al0.1 hydrogen storage alloy electrode[J]. Journal of Materials Engineering,2013(5):44-49.
[4] 魏范松,胥小丽,肖佳宁,等. La4MgNi19-xCox(x=0~2)贮氢合金的相结构和电化学性能[J]. 中国有色金属学报,2016,26(3):586-590. WEI F S,XU X L,XIAO J N,et al. Phase structure and electrochemical properties of La4MgNi19-xCox (x=0-2) hydrogen storage alloys[J]. Transactions of Nonferrous Metals Society of China,2016,26(3):586-590.
[5] ZHAO Y M,ZHANG S,LIU X X,et al. Phase formation of Ce5Co19-type super-stacking structure and its effect on electrochemical and hydrogen storage properties of La0.60M0.20Mg0.20Ni3.80 (M=La,Pr,Nd,Gd) compounds[J]. International Journal of Hydrogen Energy,2018,43(37):17809-17820.
[6] 刘黎黎,闫慧忠,曹慧,等. 热处理对A2B7型La0.6Sm0.15Nd0.1Mg0.15Ni3.4Al0.1贮氢合金微观结构和电化学性能的影响[J]. 稀土,2016,37(2):117-121. LIU L L,YAN H Z,CAO H,et al. Influence of heat treatment on microstructure and electrochemical properties of A2B7La0.6Sm0.15Nd0.1Mg0.15Ni3.4Al0.1hydrogen strange alloy [J]. Chinese Rare Earths,2016,37(2):117-121.
[7] 李健靓,王瑶,张欣,等. 稀土镁基贮氢合金的研究进展[J]. 金属功能材料,2013,20(4):49-53. LI J L,WANG Y,ZHANG X,et al. Research development of La-Mg-Ni system hydride storage alloys[J]. Metallic Functional Materials,2013,20(4):49-53.
[8] LIU J J,ZHU S,CHENG H H,et al. Enhanced cycling stability and high rate dischargeability of A2B7-type La-Mg-Ni-based alloys by in-situ formed (La,Mg)5Ni19 superlattice phase [J]. J Alloy and Comp, 2019,777:1087-1097.
[9] LIU J J,HAN S M,LI Y,et al. Phase structures and electrochemical properties of La-Mg-Ni-based hydrogen storage alloys with superlattice structure[J]. Int J of Hydrogen Energy,2016,41:20261-20275.
[10] WU C,YANG S,LI Y,et al. Microstructural evolution and electrochemical properties of the ultra-high pressure treated La0.70Mg0.30Ni3.3 hydrogen storage alloy[J]. J Alloy and Comp,2016,665:231-239.
[11] NOWAK M,BALCERZAK M,JURCZYK M. Hydrogen storage and electrochemical properties of mechanically alloyed La1.5-xGd<em>xMg0.5Ni7 (0≤x≤1.5) [J]. Int J Hydrogen Energy,2018,43(18):8897-8906.
[12] GAO Z J,ZHANG B,LUO Y C,et al. Correlation between phase structure and electrochemical properties of Ce2Ni7-type La-RE-Mg-Ni (RE=Nd,Sm,Y) alloys: a comparative study[J]. Journal of the Taiwan Institute of Chemical Engineers,2018,89:183-190.
[13] ZHANG Y H,LI Y Q,SHANG H W,et al. Electrochemical hydrogen storage performance of as-cast and as-spun RE-Mg-Ni-Co-Al-based alloys applied to Ni/MH battery[J]. Transactions of Nonferrous Metals Society of China,2018,28(4):711-721.
[14] ZHANG D, YAMAMOTO T,INUI H,et al. Characterization of stacking faults on basal planes in intermetallic compounds La5Ni19 and La2Ni7[J]. Intermetallics,2000,8(4):391-397.
[15] BUSCHOW K H J,VAN DER GOOT A S. The crystal structure of rare-earth nickel compounds of the type R2Ni7[J]. Journal of the Less Common Metals,2000,22:419-428.
[16] LIU Y F,PAN H G,GAO M X,et al. XRD study on the electrochemical hydriding/dehydriding behavior of the La-Mg-Ni-Co-type hydrogen storage alloys [J]. J Alloy and Comp,2018,43(24):11079-11084.
[17] ZHANG Q,CHEN Z,LI Y,et al. Comparative investigations on hydrogen absorption-desorption properties of Sm-Mg-Ni compounds: the effect of [SmNi5]/[SmMgNi4] unit ratio[J]. Journal of Physical Chemistry C,2018,43(24):11079-11084
[18] LI F,YOUNG K,OUCHI T,et al. Annealing effects on structural and electrochemical properties of (LaPrNdZr)0.83Mg0.17(NiCoAlMn)3.3 alloy[J]. J Alloys Comp, 2009,471(1/2):371-377.
[19] PAN H G, MA J X, WANG C S, et al. Studies on the electrochemical properties of MlNi4.3-xcoAl0.7 hydride alloy electrodes[J]. J Alloys Comp,1999,293/295:648-652.
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