Effects of plasma treatment, La content and temperature on the La-Ni-Mo-B catalysts for hydrogen production from NaBH4 hydrolysis


Sahin Ö., Ekinci A., Balbay A., Saka C.

SURFACE ENGINEERING, vol.33, no.7, pp.499-505, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 33 Issue: 7
  • Publication Date: 2017
  • Doi Number: 10.1080/02670844.2016.1271764
  • Journal Name: SURFACE ENGINEERING
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.499-505
  • Keywords: Plasma, surface, modification, lantanium, sodium borohydride, temperature, La-Ni-mo-B, SURFACE MODIFICATION, REDUCTION, NO, LANTHANUM, METHANE, NH3, CO
  • Istanbul Technical University Affiliated: No

Abstract

La-Ni-Mo-B catalysts with 0.15, 0.21 and 0.30-mol La molar ratio are prepared by a mixing method followed by a plasma treatment, characterised and investigated for hydrogen production via sodium borohydride hydrolysis. XRD, SEM, Brunauer-Emmett-Teller and FTIR techniques are used for characterising the catalysts. The hydrogen generation rate at 60 degrees C compared to 30 degrees C using La-Ni-Mo-B under the same conditions is significantly different. The effect of temperature, plasma application time and different plasma gases on hydrogen generation from NaBH4 hydrolysis reaction using La-0.21-Ni-Mo-B catalyst is investigated. It was found that the plasma-treated catalysts exhibited low activation energy for zero order (58 kJ mol(-1)).