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Electrochemical kinetic properties of AB5-type hydrogen storage alloys with chemically deposited polypyrrole

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Abstract

La0.65Ce0.25Pr0.02Nd0.08Ni3.85Mn0.39Co0.73Al0.31 AB5-type alloy was modified via the method of a simple chemical oxidative polymerization of pyrrole (Py) directly occurring on the surface of alloy particles. Field emission scanning electron microscopy and Fourier transform infrared spectroscopy revealed spongy polypyrrole (PPy) films uniformly and continuously deposited on the surface of the alloy particles. The PPy films possessed superior electrochemical redox reversibility, thus facilitating hydrogen protons transferring from electrolyte to electrode interface. Moreover, the PPy films exhibited prominent anti-corrosion properties and reduced the pulverization of the alloy particles. The PPy-coated alloy received remarkable enhancement in rate capability and cyclability compared to those of the bare alloy. Due to the PPy films, the high-rate dischargeability at a discharge current density of 1500 mA g−1 (HRD1500) significantly increased from 18 to 31.6 %, and the capacity retention rate after 200 cycles (S 200) increased from 84.2 to 89.8 %. Meanwhile, the PPy coatings decreased the charge transfer resistance and increased the hydrogen diffusion rate of the alloys, which well conformed with the HRD results.

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References

  1. Liu YF, Cao YH, Huang L, Gao MX, Pan HG (2011) J Alloys Compd 509:675

    Article  CAS  Google Scholar 

  2. Pan CC, Yang SL, Yu RH, Shi J, Nakamura Y (2010) J Rare Earth 28:286

    Article  CAS  Google Scholar 

  3. Lee HJ, Yang DC, Park CJ, Park CN, Jang HJ (2009) Int J Hydrog Energy 34:481

    Article  CAS  Google Scholar 

  4. Zhang JL, Han SM, Li Y, Liu JJ, Yang SQ, Zhang L, Wang JD (2013) J Alloys Compd 581:693

    Article  CAS  Google Scholar 

  5. Raju M, Ananth MV, Vijayaraghavan L (2009) J Alloys Compd 475:664

    Article  CAS  Google Scholar 

  6. Bai TY, Han SM, Lin ZX, Zhang Y, Li Y, Zhang WC (2009) Mater Chem Phys 117:173

    Article  CAS  Google Scholar 

  7. Li Y, Han SM, Liu ZP (2010) Int J Hydrog Energy 35:12858

    Article  CAS  Google Scholar 

  8. Yang SQ, Liu HP, Han SM, Li Y, Shen WZ (2013) Appl Surf Sci 271:210

    Article  CAS  Google Scholar 

  9. Wang BP, Zhao LM, Cai CS, Wang SX (2014) Int J Hydrog Energy 39:10374

    Article  CAS  Google Scholar 

  10. Shen WZ, Han SM, Li Y, Yang SQ, Miao Q (2012) Appl Surf Sci 258:6316

    Article  CAS  Google Scholar 

  11. Muthulakshmi B, Kalpana D, Pitehumani S (2006) J Power Sources 158:1533

    Article  CAS  Google Scholar 

  12. Fang Y, Ngin TS, Hailin G (1996) Sens Actuators B Chem 32:33

    Article  CAS  Google Scholar 

  13. Konga Y, Wang CY, Yang Y, Too CO, Wallace GG (2012) Synth Met 162:584

    Article  Google Scholar 

  14. Herrasti P, Rio AI, Recio J (2007) Electrochim Acta 52:6496

    Article  CAS  Google Scholar 

  15. Qi XN, Vetter C, Harper AC, Gelling VJ (2008) Prog Org Coat 63:345

    Article  CAS  Google Scholar 

  16. Ma GQ, Wen ZY, Jin J, Lu Y, Rui K, Wu XW, Wu MF, Zhang JC (2014) J Power Sources 254:353

    Article  CAS  Google Scholar 

  17. Zotti G, Schiavon G, Zecchin S, Sannicolo’ F, Brenna E (1995) Chem Mater 7:1464

    Article  CAS  Google Scholar 

  18. Sun A, Li Z, Wei T (2009) Sens Actuators B Chem 142:197

    Article  CAS  Google Scholar 

  19. Notten PHL, Hokkeling P (1991) J Electrochem Soc 138:1877

    Article  CAS  Google Scholar 

  20. Ratnakumar BV, Witham C, Bowman RCJ (1996) J Electrochem Soc 143:2578

    Article  CAS  Google Scholar 

  21. Kuriyama N, Sakai T, Miyamura H, Uehara I, Ishikawa H, Iwasaki T (1993) J Alloy Compd 202:183

    Article  CAS  Google Scholar 

  22. Zheng G, Popov BN, White RE (1995) J Electrochem Soc 142:2695

    Article  CAS  Google Scholar 

Download references

Acknowledgments

This project was financially supported by the Fundamental Research Funds for the Natural Science Foundation of China (No. 51201176).

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Correspondence to Lin Hu.

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Hu, L., Li, J. & Yang, W. Electrochemical kinetic properties of AB5-type hydrogen storage alloys with chemically deposited polypyrrole. Ionics 21, 3209–3215 (2015). https://doi.org/10.1007/s11581-015-1493-0

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  • DOI: https://doi.org/10.1007/s11581-015-1493-0

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