采用机械合金化方法制备Mg1-xScxNi(x=0,0.01)系列储氢合金.XRD结构分析表明,该系列合金为非晶态合金.XPS分析结果表明,加入微量Sc可以有效地抑制合金表面的氧化程度和提高合金表面Ni与Mg的原子个数比.电化学测试结果表明,微量Sc改善了合金电极的电化学性能,Mg0.99Sc0.01Ni合金电极的放电容量、容量保持率S10、高倍率放电能力HRD200、交换电流密度I0和极限电流密度,IL分别较MgNi合金电极提高10.5%、14.7%、30.4%、202.7%和77.8%.
参考文献
[1] | 李谦,吴铸,鲁雄刚,周国治,徐匡迪.机械化学法制备Mg-Ni-Ti0.32Cr0.35V0.07Fe0.26复合材料的储放氢性能[J].稀有金属材料与工程,2007(09):1672-1676. |
[2] | 肖学章,王新华,陈立新,李寿权,汤滢,陈长聘.La1.8Ca0.2Mg14Ni3+x%Ti合金的微结构和储氢性能[J].稀有金属材料与工程,2007(05):790-793. |
[3] | 刘新波,刘子利.镁基储氢合金的研究进展[J].金属功能材料,2007(03):32-36. |
[4] | Antonov V E;Bashkin I O;Fedotov V K et al.[J].Physical Review B,2006,73(05):1. |
[5] | Weck Philippe F;Kumar T J Dhilip;Kim Eunja et al.[J].Journal of Chemical Physics,2007,126(09):1. |
[6] | Alapati Sudhakar V;Johnson J Karl;Sholl David S .[J].Journal of Alloys and Compounds,2007,446-447:23. |
[7] | Notten P H L;Ouwerkerk M;Hal H Van et al.[J].Journal of Power Sources,2004,129(01):45. |
[8] | Kalisvaart W P;Niessen R A H;Notten P H L .[J].Journal of Alloys and Compounds,2006,417(1-2):280. |
[9] | Niessen R A H;Notten P H L .[J].Journal of Alloys and Compounds,2005,404-406:457. |
[10] | Niessen R A H;Notten P H L .[J].Electrochemical and Solid-State Letters,2005,8(10):A534. |
[11] | Tian Qi-Feng;Zhang Yao;Sun Li-Xian et al.[J].Journal of Power Sources,2006,158(02):1463. |
[12] | Shu Guo Zhang;Kenshi Yorimitsu;Shinji Nohara et al.[J].Journal of Alloys and Compounds,1998,270(1-2):123. |
[13] | Wang C S;Wang X H;Lei Y Q et al.[J].International Journal of Hydrogen Energy,1997,22(12):1117. |
[14] | Ruggeri Stéphane;Roue Lionel;Liang Guoxian et al.[J].Journal of Alloys and Compounds,2002,343(1-2):170. |
[15] | Ratnakumar BV.;Bowman RC.;Hightower A.;Fultz B.;Witham C. .ELECTROCHEMICAL STUDIES ON LANI5-XSNX METAL HYDRIDE ALLOYS[J].Journal of the Electrochemical Society,1996(8):2578-2584. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%