Advertisement

Electrodeposition of TiO2/Ni-P Composite Electrodes for Efficient Water Electrolysis

  • Liju Elias
  • A. Chitharanjan HegdeEmail author
Conference paper

Abstract

TiO2/Ni-P composite electrode has been fabricated through electrodeposition from an optimized Ni-P alloy plating bath loaded with titanium dioxide (TiO2) nanoparticles, using glycerol as the additive. TiO2/Ni-P composite coatings were developed on copper rod from optimal bath of Ni-P alloy, and their electrocatalytic behaviors have been studied in alkaline medium (1.0 M KOH). The electrocatalytic behaviors of TiO2/Ni-P composite electrodes for water splitting reactions of hydrogen evolution reaction (HER) was studied by cyclic voltammetry and chronopotentiometry techniques. Experimental results revealed that addition of TiO2 nanoparticles (p < 25 nm) into the bath has significant effect on the electrocatalytic behavior Ni-P alloy deposit. Experimental results demonstrated many fold increase in the electrocatalytic activity of Ni-P alloy coating after the incorporation of TiO2 nanoparticles. The enhanced electrocatalytic activity TiO2/Ni-P composite coatings were attributed to the TiO2 nanoparticles intersticed in the deposit matrix of the coating, evidenced by FESEM, EDX and XRD analyses. The experimental results were discussed with possible mechanism, responsible for increased hydrogen evolution due to its reduced overvoltage.

Keywords

Electrodeposition TiO2/Ni-P composite Electrocatalysis HER 

References

  1. Aal, A.A., Hassan, H.B.: Electrodeposited nanocomposite coatings for fuel cell application. J. Alloy. Compd. 477(1), 652–656 (2009)Google Scholar
  2. Elias, L., Scott, K., Hegde, A.C.: Electrolytic synthesis and characterization of electrocatalytic Ni-W alloy. J. Mater. Eng. Perform. 24(11), 4182–4191 (2015)CrossRefGoogle Scholar
  3. Elias, L., Hegde, A.C.: Electrodeposition and electrocatalytic study of Ni-W alloy coating. In: Materials Science Forum, pp. 651–654. Trans. Tech. Publ. (2015)Google Scholar
  4. Gomes, A., Fernández, B., Pereira, I., Pereiro, R.: Electrodeposition of Metal Matrix Nanocomposites: Improvement of the Chemical Characterization Techniques, pp. 24–126. INTECH Open Access Publisher (2011)Google Scholar
  5. Hou, D., Zhou, W., Liu, X., Zhou, K., Xie, J., Li, G., Chen, S.: Pt nanoparticles/MoS2 nanosheets/carbon fibers as efficient catalyst for the hydrogen evolution reaction. Electrochim. Acta 166, 26–31 (2015)CrossRefGoogle Scholar
  6. Ju, H., Li, Z., Xu, Y.: Electro-catalytic activity of Ni–Co-based catalysts for oxygen evolution reaction. Mater. Res. Bull. 64, 171–174 (2015)CrossRefGoogle Scholar
  7. Low, C.T.J., Wills, R.G.A., Walsh, F.C.: Electrodeposition of composite coatings containing nanoparticles in a metal deposit. Surf. Coat. Technol. 201(1), 371–383 (2006)CrossRefGoogle Scholar
  8. Pillai, A.M., Rajendra, A., Sharma, A.K.: Electrodeposited nickel–phosphorous (Ni–P) alloy coating: an in-depth study of its preparation, properties, and structural transitions. J. Coat. Technol. Res. 9(6), 785–797 (2012)CrossRefGoogle Scholar
  9. Wei, Z.D., Yan, A.Z., Feng, Y.C., Li, L., Sun, C.X., Shao, Z.G., Shen, P.K.: Study of hydrogen evolution reaction on Ni–P amorphous alloy in the light of experimental and quantum chemistry. Electrochem. Commun. 9(11), 2709–2715 (2007)CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Singapore 2016

Authors and Affiliations

  1. 1.Electrochemistry Research Lab, Department of ChemistryNational Institute of Technology KarnatakaSurathkalIndia

Personalised recommendations