The effects of plasma treatment on electrochemical activity of Co-W-B catalyst for hydrogen production by hydrolysis of NaBH4


Ekinci A., Sahin Ö. , Saka C., Avci T.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, vol.38, no.35, pp.15295-15301, 2013 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 38 Issue: 35
  • Publication Date: 2013
  • Doi Number: 10.1016/j.ijhydene.2013.09.098
  • Title of Journal : INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
  • Page Numbers: pp.15295-15301
  • Keywords: Plasma, Sodium borohydride, Cobalt-Wolfram-Boron catalyst, Hydrolysis, Hydrogen generation, GLOW-DISCHARGE PLASMA, SODIUM-BOROHYDRIDE, GENERATION

Abstract

A plasma treatment of Co-W-B catalyst increases the rate of hydrogen generation from the hydrolysis of NaBH4. The catalytic properties of Co-W-B prepared in the presence of plasma have been investigated as a function of NaBH4 concentration, NaOH concentration, temperature, plasma applying time, catalyst amount and plasma gases. The Co-W-B catalyst prepared with cold plasma effect hydrolysis in only 12 min, where as the Co-W-B catalyst prepared in known method with no plasma treatment in 23 min. The activation energy for first-order reaction is found to be 29.12 kJ mol(-1). Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.