Electrocatalytic Behaviour of Nickel-Cerium Alloy Deposits

A. Subramania,^a,* A.R.S. Priya^a and V.S. Muralidharan^b

^a) Advanced Materials Research Lab, Department of Industrial Chemistry, Alagappa University, Karaikudi – 630 003, India

^b) Central Electrochemical Research Institute, Karaikudi- 630 006, India

 

Received 22 January 2007; accepted 20 July 2007

 

Abstract

Electrodeposition of Ni-Ce alloy on steel was studied and  an electroplating bath was optimized for maximum cathodic current efficiency. Cerium sulphate content in the bath decreased the cathodic current efficiency. Hydrogen evolution reaction from NaOH solution was catalysed by cerium in the alloy and also the increase of cerium content increased the catalytic activity. Among the various Ni-Ce alloys, Ni₇₇Ce₂₃ alloy offered the maximum catalytic activity.

Keywords: electrodeposition, Ni-Ce alloy, electrocatalysis, NaOH, hydrogen evolution reaction

 

Texto disponível em PDF

Full text only in PDF format

 

References

1. W. Hu, Y. Zhang, D. Song, Z. Zhou and Y. Wang, Mater. Chem. Phys. 41 (1995) 141.        [ Links ]

2. W.E. Winsche, K.C. Hoffman and F.J. Salzano, Science 180 (1973) 1325.

3. P. Gu, L. Bai, L. Gao, R. Brousseau and B.E. Conway, Electrochim. Acta 37 (1992)  2145.

4. N.A. Assuncao, M.J. Degiz, G. Tremillosi and E.R. Gonzales, J. Electrochem. Soc. 144 (1997) 2794.

5. H. Schimdt and H. Wendt, Electrochim. Acta 40 (1995) 1663.

6. I. Paseka, Electrochim. Acta 40 (1995) 1663.

7. N. Yoshida and Morimoto, Electrochim. Acta 39 (1994) 1733.

8  V.S. Muralidharan, M. Veerashunmugamani, G.P. Kalaignan and S. Arulraj,   Bull. Electrochem. 1 (1985) 241.

9. S. Trasatti, J. Electroanal. Chem.  39 (1972) 163.

10. S. Trasatti,  Electrochim. Acta.  39 (1994) 1739.

 

*Corresponding author. E-mail address: a_subramania@gmail.com