Electrochemical kinetic properties of AB 5 -type hydrogen storage alloys with chemically deposited polypyrrole
作者： Lin Hu , Jianping Li , Wei Yang
DOI: 10.1007/S11581-015-1493-0
关键词:
摘要: La0.65Ce0.25Pr0.02Nd0.08Ni3.85Mn0.39Co0.73Al0.31 AB5-type alloy was modified via the method of a simple chemical oxidative polymerization pyrrole (Py) directly occurring on surface particles. Field emission scanning electron microscopy and Fourier transform infrared spectroscopy revealed spongy polypyrrole (PPy) films uniformly continuously deposited The PPy possessed superior electrochemical redox reversibility, thus facilitating hydrogen protons transferring from electrolyte to electrode interface. Moreover, exhibited prominent anti-corrosion properties reduced pulverization PPy-coated received remarkable enhancement in rate capability cyclability compared those bare alloy. Due films, high-rate dischargeability at discharge current density 1500 mA g−1 (HRD1500) significantly increased 18 31.6 %, capacity retention after 200 cycles (S 200) 84.2 89.8 %. Meanwhile, coatings decreased charge transfer resistance diffusion alloys, which well conformed with HRD results.
springer.com
sci-hub.se 参考文章(22)
Taoyu Bai, Shumin Han, Xilin Zhu, Yue Zhang, Yuan Li, Wencui Zhang, Effect of duplex surface treatment on electrochemical properties of AB3-type La0.88Mg0.12Ni2.95Mn0.10Co0.55Al0.10 hydrogen storage alloy Materials Chemistry and Physics. ,vol. 117, pp. 173- 177 ,(2009) , 10.1016/J.MATCHEMPHYS.2009.05.031
Yong Kong, Caiyun Wang, Yang Yang, Chee O. Too, Gordon G. Wallace, A battery composed of a polypyrrole cathode and a magnesium alloy anode-Toward a bioelectric battery Synthetic Metals. ,vol. 162, pp. 584- 589 ,(2012) , 10.1016/J.SYNTHMET.2012.01.021
B. V. Ratnakumar, C. Witham, R. C. Bowman, A. Hightower, B. Fultz, Electrochemical Studies on LaNi(sub 5-x)Sn(sub x) Metal Hydride Alloys Journal of The Electrochemical Society. ,vol. 143, pp. 2578- 2584 ,(1996) , 10.1149/1.1837050
Gianni Zotti, Gilberto Schiavon, Sandro Zecchin, Franco Sannicolo', Elisabetta Brenna, Anion Assisted Anodic Coupling of 2,2'-Bipyrrole. Role of Tosylate Anion in the Electrochemical Synthesis of Polypyrrole Chemistry of Materials. ,vol. 7, pp. 1464- 1468 ,(1995) , 10.1021/CM00056A010
Wenzhuo Shen, Shumin Han, Yuan Li, Shuqin Yang, Qi Miao, Effect of electroplating polyaniline on electrochemical kinetics of La–Mg–Ni-based hydrogen storage alloy Applied Surface Science. ,vol. 258, pp. 6316- 6320 ,(2012) , 10.1016/J.APSUSC.2012.03.029
Nobuhiro Kuriyama, Tetsuo Sakai, Hiroshi Miyamura, Itsuki Uehara, Hiroshi Ishikawa, Toshikatsu Iwasaki, Electrochemical impedance and deterioration behavior of metal hydride electrodes Journal of Alloys and Compounds. ,vol. 202, pp. 183- 197 ,(1993) , 10.1016/0925-8388(93)90538-X
P. Herrasti, A.I. del Rio, J. Recio, Electrodeposition of homogeneous and adherent polypyrrole on copper for corrosion protection Electrochimica Acta. ,vol. 52, pp. 6496- 6501 ,(2007) , 10.1016/J.ELECTACTA.2007.04.074
M. Raju, M.V. Ananth, L. Vijayaraghavan, Influence of electroless coatings of Cu, Ni–P and Co–P on MmNi3.25Al0.35Mn0.25Co0.66 alloy used as anodes in Ni–MH batteries Journal of Alloys and Compounds. ,vol. 475, pp. 664- 671 ,(2009) , 10.1016/J.JALLCOM.2008.07.093
Yuan Li, Shumin Han, Zhiping Liu, Effect of Mo–Ni treatment on electrochemical kinetics of La–Mg–Ni-based hydrogen storage alloys International Journal of Hydrogen Energy. ,vol. 35, pp. 12858- 12863 ,(2010) , 10.1016/J.IJHYDENE.2010.08.141
Chongchao PAN, Shonglin YANG, Ronghai YU, Ji SHI, Y. Nakamura, Mechanism of the enhancement of discharge rate property for Nd0.8Mg0.2(Ni0.8Co0.2)3.8 hydrogen storage alloy by magnetic annealing Journal of Rare Earths. ,vol. 28, pp. 286- 289 ,(2010) , 10.1016/S1002-0721(09)60098-3