Effect of Ni-alloys on thermal decomposition of ammonia borane》.pdf

Journal of Alloys and Compounds 645 (2015) S234–S238 Contents lists available at ScienceDirect Journal of Alloys and Compounds journal homepag e: www.elsevier.c om/locate/jalcom Effect of Ni-alloys on thermal decomposition of ammonia borane Binayak Roy, Joydev Manna, Pratibha Sharma ⇑ Department of Energy Science and Engineering, Indian Institute of Technology Bombay, Mumbai 400076, Maharashtra, India a r t i c l e i n f o a b s t r a c t Article history: The principal disadvantage of thermal decomposition of ammonia borane is release of borazine during Available online 17 January 2015 generation of hydrogen gas. In the current work, ZrNi, FeNi and CuNi alloys have been synthesized and used as additives to decrease the amount of borazine release. It was observed that ZrNi was most efficient Keywords: resulting in 22% decrease in the borazine release. The effect of the additives in decreasing the borazine Ammonia borane release was observed to be in the order of ZrNi FeNi CuNi. Thermolysis 2015 Elsevier B.V. All rights reserved. Ni alloys Hydrogen storage 1. Introduction The first exothermic decomposition step, liberating one mol equivalent of H , takes place in between the temperature range