Effect of pyridine and its derivatives on the electrodeposition of nickel from aqueous sulfate solutions. Part II : Polarization behaviour

作者: U.S. Mohanty , B.C. Tripathy , P. Singh , S.C. Das

DOI: 10.1023/A:1017957328122

关键词: NickelPolarization (electrochemistry)Tafel equationPyridineChemistrySodium sulfateInorganic chemistryExchange current densityElectrochemistryLinear sweep voltammetry

摘要: The electrochemical reactions occurring during electrodeposition of nickel from acidic sulfate solutions were examined by cyclic and linear sweep voltammetry techniques. effect pyridine, 2-picoline 4-picoline on the electrode polarization behaviour electron transfer parameter cathodic reduction process was also investigated. Strongest seen with 4-picoline. order > pyridine. Kinetic parameters such as Tafel slope, coefficient exchange current density determined to analyse nature reactions. for deposition stainless steel substrates in <

参考文章(26)
S. C. DAS, P. SINGH, G. T. HEFTER, The effects of 4-ethylpyridine and 2-cyanopyridine on zinc electrowinning from acidic sulfate solutions Journal of Applied Electrochemistry. ,vol. 27, pp. 738- 744 ,(1997) , 10.1023/A:1018452224138
B.C. Tripathy, S.C. Das, P. Singh, G.T. Hefter, Zinc electrowinning from acidic sulphate solutions. Part III: Effects of quaternary ammonium bromides Journal of Applied Electrochemistry. ,vol. 29, pp. 1229- 1235 ,(1999) , 10.1023/A:1003459822142
B.C. Tripathy, P. Singh, D.M. Muir, S.C. Das, Effect of organic extractants on the electrocrystallization of nickel from aqueous sulphate solutions Journal of Applied Electrochemistry. ,vol. 31, pp. 301- 305 ,(2001) , 10.1023/A:1017507430938
B. C. Tripathy, S. C. Das, G. T. Hefter, P. Singh, Zinc electrowinning from acidic sulphate solutions Part II: Effects of triethylbenzylammonium chloride Journal of Applied Electrochemistry. ,vol. 28, pp. 915- 920 ,(1998) , 10.1023/A:1003404130043
B.C. Tripathy, S.C. Das, P. Singh, G.T. Hefter, D.M. Muir, Effect of Mg2+, Li+, Na+ and K+ on the electrocrystallization of nickel from aqueous sulfate solutions containing boric acid Journal of Applied Electrochemistry. ,vol. 31, pp. 573- 577 ,(2001) , 10.1023/A:1017585726321
A. M. Ahmed, G. H. Sedahmed, Effect of surfactants on the rate of mass transfer at gas-evolving electrodes Journal of Applied Electrochemistry. ,vol. 19, pp. 219- 224 ,(1989) , 10.1007/BF01062304
Y. Nakamura, N. Kaneko, M. Watanabe, H. Nezu, Effects of saccharin and aliphatic alcohols on the electrocrystallization of nickel Journal of Applied Electrochemistry. ,vol. 24, pp. 227- 232 ,(1994) , 10.1007/BF00242888
Roberto CV Piatti, Alejandro Jorge Arvia, José J Podestá, The electrochemical kinetic behaviour of nickel in acid aqueous solutions containing chloride and perchlorate ions Electrochimica Acta. ,vol. 14, pp. 541- 560 ,(1969) , 10.1016/0013-4686(69)87040-4
E. K�zeci, R. Kammel, S. K. Gogia, Effects of metallic and D2EHPA impurities on nickel electrowinning from aqueous sulphate baths Journal of Applied Electrochemistry. ,vol. 24, pp. 730- 736 ,(1994) , 10.1007/BF00578087