Abstract
The potassium ferrate (VI) coated with phthalocyanine (H2Pc) was successfully prepared via a facile co-precipitation process. Scanning electron microscopy and Fourier transform infrared spectrum revealed that K2FeO4 had been coated with H2Pc particles. When evaluated as cathodic material for alkaline super-ion battery, the effects of H2Pc coating on the electrochemical stability of K2FeO4 electrodes upon prolonged immersion time were investigated by galvanostatic discharge test, open-circuit potential measurements, and electrochemical impedance spectroscopy. The results show that the decomposition of K2FeO4 in electrolyte is obviously suppressed by H2Pc coating with a short immersion time, which could enhance the discharge capacity of electrodes. Furthermore, the open-circuit potential of the H2Pc-coated K2FeO4 electrode is higher than that of the bare K2FeO4 electrode, which indicates the improvement of anticorrosive ability. In addition, the ability of charge transfer between electrode and electrolyte is enhanced by H2Pc coating due to the inhibition on formation of Fe (III) layer, but the improved performance will decline upon prolonged immersion time.
Similar content being viewed by others
References
Licht S, Wang B, Ghosh S (1999) Science 285:1039–1042
Farmand M, Jiang D, Wang B, Ghosh S, Ramaker DE, Licht S (2011) Electrochem Commun 13:909–912
Xu Z, Wang J, Shao H, Tang Z, Zhang J (2007) Electrochem Commun 9:371–377
Walz KA, Handrick A, Szczech JR, Stoiber LC, Suyama AN, Suyama WE, Zeltner WA, Johnson CS, Anderson MA (2007) J Power Sources 167:545–549
Walz KA, Szczech JR, Suyama AN, Suyama WE, Stoiber LC, Zeltner WA, Armacanqui ME, Anderson MA (2006) J Electrochem Soc 153:A1102–A1107
Yu X, Licht S (2007) J Power Sources 173:1012–1016
Zhang YQ, Zhang GD, Du TD (2011) Electrochim Acta 56:1159–1163
Zhang YQ, Zhao XH, Zhang SM, Zhang GD, Shaomin L (2012) Appl Energy 99:265–271
Yamaki J, Yamajj A (1982) J Electrochem Soc 129:5–9
Fuhrhop JH, Baccouche M, Grabow H, Arzoumanian H (1980) J Mol Catal 7:245–256
Wang F, Wu F, Yang K (2003) Acta Phys Chim Sin 19:854–857
Tamizhmani G, Dodelet JP, Guay D, Lalande G, Capuano GA (1994) J Electrochem Soc 141:41–45
Vinod MP, Das TKR, Chandwadkar AJ, Vijayamohanan K, Chandwadkar JG (1994) Mater Chem Phys 58:37–43
Yonehara H, Pac C (1994) Thin Solid Films 278:108–113
Wang S, Yang Z, Liu D, Yi S, Chi W (2010) Electrochem Commun 12:367–370
Yang B, Yang Z, Wang S (2012) J Electroanal Chem 587:3–10
Wang S, Yang Z, Liu D, Wang S (2010) Electrochim Acta 55:1985–1989
Licht S, Naschitz V, Ghosh S (2002) J Phys Chem B 106:5947–5955
Licht S, Yu X, Zheng D (2006) Chem Commun 41:4341–4343
Licht S, Ghosh S, Naschitz V, Halperin N, Halperin L (2001) J Phys Chem B 105:11933–11936
Yang W, Wang J, Pan T, Xu J, Zhang J, Cao C (2002) Electrochem Commun 4:710–715
Feliu S Jr, Morcillo M, Feliu S (1995) Prog Org Coat 25:365–377
Bonora PL, Deflorian F, Fedrizzi L (1996) Electrochim Acta 41:1073–1082
Acknowledgments
This work is financially supported by the Natural Science Foundation of China (no. 21371180), Doctoral Fund of Ministry of Education of China(20130162110 018)and the Science and Technology Project of Changsha city (no. k1303015-11).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Huang, J., Yang, Z., Wang, S. et al. Preparation and stability study of potassium ferrate (VI) coated with phthalocyanine for alkaline super-iron battery. J Solid State Electrochem 19, 723–730 (2015). https://doi.org/10.1007/s10008-014-2658-x
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10008-014-2658-x