Electrocatalytic activity of porous nanostructured Fe/Pt-Fe electrode for methanol electrooxidation in alkaline media

doi:10.1016/S1872-2067(15)60841-5

Abstract

Abstract:

An electrochemical approach to fabricate a nanostructured Fe/Pt-Fe catalyst through electrodeposition followed by galvanic replacement is presented. An Fe/Pt-Fe nanostructured electrode was prepared by deposition of Fe-Zn onto a Fe electrode surface, followed by replacement of the Zn by Pt at open-circuit potential in a Pt-containing alkaline solution. Scanning electron microscopy and energy-dispersive X-ray techniques reveal that the Fe/Pt-Fe electrode is porous and contains Pt. The electrocatalytic activity of the Fe/Pt-Fe electrode for oxidation of methanol was examined by cyclic voltammetry and chronoamperometry. The electrooxidation current on the Fe/Pt-Fe catalyst is much higher than that on flat Pt and smooth Fe catalysts. The onset potential and peak potential on the Fe/Pt-Fe catalyst are more negative than those on flat Pt and smooth Fe electrodes for methanol electrooxidation. All results show that this nanostructured Fe/Pt-Fe electrode is very attractive for integrated fuel cell applications in alkaline media.

Key words: Methanol electro-oxidation, Nanostructured Fe/Pt-Fe, Electrocatalytic behavior, Galvanic replacement, Cyclic voltammetry, Direct methanol fuel cell

Javad Hosseini, Mehdi Abdolmaleki, Hamid Reza Pouretedal, Mohammad Hossein Keshavarz. Electrocatalytic activity of porous nanostructured Fe/Pt-Fe electrode for methanol electrooxidation in alkaline media[J]. Chinese Journal of Catalysis, 2015, 36(7): 1029-1034.

×
share this article

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(15)60841-5

https://www.cjcatal.com/EN/Y2015/V36/I7/1029

References

[1] Giz M J, Camara G A. J Electroanal Chem, 2009, 625: 117
[2] Kowal A, Gojkovic S L, Lee K S, Olszewski P, Sung Y E. Electrochem Commun, 2009, 11: 724
[3] Guo D J, Qiu X P, Chen L Q, Zhu W T. Carbon, 2009, 47: 1680
[4] Lobato J, Canizares P, Rodrigo M A, Linares J J. Appl Catal B, 2009, 91: 269
[5] Bergamaski K, Gonzalez E R, Nart F C. Electrochim Acta, 2008, 53: 4396
[6] Jiang L, Hsu A, Chu D, Chen R. Int J Hydrogen Energy, 2010, 35: 365
[7] Kadirgan F, Beyhan S, Atilan T. Int J Hydrogen Energy, 2009, 34: 4312
[8] Li J, Tian W P, Shi L. Catal Lett, 2011, 141: 565
[9] Du C Y, Chen M, Wang W G, Yin G P, Shi P F. Electrochem Commun, 2010, 12: 843
[10] Lv X Y, Xu Z H, Yan Z X, Li X H. Electrocatalysis, 2011, 2(2): 82
[11] Qi Z, Geng H R, Wang X G, Zhao C C, Ji H, Zhang C, Xu J L, Zhang Z H. J Power Sources, 2011, 196: 5823
[12] Antolini E, Salgado J R C, Gonzalez E R. J Power Sources, 2006, 155: 161
[13] Du Y S, Su J, Luo W, Cheng G Z. ACS Appl Mater Interfaces, 2015, 7: 1031
[14] Zhao Y C, Yang X L, Tian J N, Wang F Y, Zhan L. Int J Hydrogen Energy, 2010, 35: 3249
[15] Huang T, Liu J L, Li R S, Cai W B, Yu A S. Electrochem Commun, 2009, 11: 643
[16] Xu Z H, Hu J C, Yan Z X, Yang S B, Zhou J, Lu W. Electrochim Acta, 2009, 54: 3548
[17] Hosseini M G, Abdolmaleki M, Ashrafpoor S. Chin J Catal (催化学报), 2012, 33: 1817
[18] Solmaz R, Döner A, Şahin İ, Yüce A O, Kardaş G, Yazıcı B, Erbil M. Int J Hydrogen Energy, 2009, 34: 7910
[19] Hosseini M G, Abdolmaleki M. Int J Hydrogen Energy, 2013, 38: 5449
[20] Hosseini M G, Abdolmaleki M, Ashrafpoor S. J Appl Electrochem, 2012, 42: 153
[21] Qiu C C, Shang R, Xie Y F, Bu Y R, Li C Y, Ma H Y. Mater Chem Phys, 2010, 120: 323
[22] Xu C W, Liu Y L, Yuan D S. Int J Electrochem Sci, 2007, 2: 674
[23] Lee Y W, Han S B, Park K W. Electrochem Commun, 2009, 11: 1968
[24] Singh R N, Singh A, Anindita. Int J Hydrogen Energy, 2009, 34: 2052
[25] Liu J P, Ye J Q, Xu C W, Jiang S P, Tong Y X. Electrochem Commun, 2007, 9: 2334
[26] Xu M W, Gao G Y, Zhou W J, Zhang K F, Li H L. J Power Sources, 2008, 175: 217
[27] Liang Z X, Zhao T S, Xu J B, Zhu L D. Electrochim Acta, 2009, 54: 2203
[28] Beden B, Kadirgan F, Lamy C, Leger J M. J Electroanal Chem Interf Electrochem, 1982, 142: 171
[29] Hosseini M G, Abdolmaleki M, Ashrafpoor S. Chin J Catal (催化学报), 2013, 34: 1712 Telli E, Solmaz R, Kardaş G. Russ J Electrochem, 2011, 47: 811