采用中频感应熔炼-快淬方法制备La15-xSmxFe2Ni76Mn5B2(x=0,2,4,6)型储氢合金.结构分析表明:快淬态La15-xSmxFe2Ni76Mn5B2(x=0,2,4,6)合金为多相结构,主相为LaNi5相,另外还有La3Ni13B2相和(Fe,Ni)相.快淬合金经1173 K保温3小时,而后随炉冷却到室温,随着Sm替代La的量不同,合金的组成相有着不同的变化.电化学测试表明,退火热处理明显提高了合金电极的最大放电容量,改善了合金电极的自放电性能.退火合金电极的高倍率放电能力均低于快淬合金,表明储氢合金电极的电化学动力学性能有所下降.
参考文献
| [1] | Yongfeng Liu;Hongge Pan;Mingxia Gao .Advanced hydrogen storage alloys for Ni/MH rechargeable batteries[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,2011(13):4743-4755. |
| [2] | Xue-Ping Gao .Multi-electron reaction materials for high energy density batteries[J].Energy & environmental science: EES,2010(2):174-189. |
| [3] | H.C. Lin;K.M. Lin;H.T. Chou .Effects of annealing and NaOH pretreatment on an LmNi_(3.65)Al_(0.34)Mn_(0.27)Co_(0.74) hydrogen storage alloy[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2003(1/2):281-287. |
| [4] | H.H. Cheng;H.G. Yang;S.L. Li .Effect of hydrogen absorption/desorption cycling on hydrogen storage performance of LaNi_(4.25)Al_(0.75)[J].Journal of Alloys and Compounds,2008(1/2):448-452. |
| [5] | 苑慧萍,李志念,赵旭山,王树茂,刘晓鹏,蒋利军.热处理对Nd-Mg-Ni储氢合金结构和性能的影响[J].稀有金属,2013(03):341-347. |
| [6] | 马建新,潘洪革,田清华,朱云峰,李寿权,陈长聘.热处理温度对AB5型MlNi 3.60C0 0.85Mn 0.40Al 0.15 贮氢电极合金微结构和电化学性能的影响[J].中国有色金属学报,2001(04):587-592. |
| [7] | Hu WK.;Jeon SW.;Lee JY.;Kim DM. .Effect of annealing treatment on electrochemical properties of Mm-based hydrogen storage alloys for Ni/MH batteries[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,1998(1/2):255-264. |
| [8] | 马志鸿,雷永泉,陈立新,顾巍.热处理对Ml（NiCoMnAl）4.76合金的电化学性能的影响[J].稀有金属材料与工程,2000(04):255-257. |
| [9] | New La-Fe-B ternary system hydrogen storage alloys[J].International journal of hydrogen energy,2010(11):P.5687. |
| [10] | 李宝犬,熊玮,王利,刘红军,闫慧忠.La15-xCexFe14Ni64Mn5B2 （x=0～6）储氢合金结构及电化学性能研究[J].稀土,2014(02):1-6. |
| [11] | 赵伟杰,闫慧忠,李金,李宝犬,王利,赵辉.淬火处理对La12Ce3Fe10Ni63Mn5Al6B储氢合金结构和性能的影响[J].稀土,2013(04):85-89. |
| [12] | 王利,闫慧忠,李宝犬,熊玮,李金,孔繁清.硼对La17Fe76B7型储氢合金结构和电化学性能的影响[J].中国稀土学报,2013(01):78-83. |
| [13] | 马建新 .合金化、热处理及磁化处理对AB<,5>型贮氢电极合金微结构与电化学性能的影响[D].浙江大学,2002. |
| [14] | 吴建民,杨素媛,李蓉,周少雄.退火对富铈Mm（NiCoMnAl）5储氢合金电化学性能的影响[J].中国稀土学报,2003(06):725-728. |
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