March: A/Prof Sammy Chan, "Enhancing the cost-performance of La-Mg-Ni hydrogen storage alloys for renewable energy storage system

March: A/Prof Sammy Chan, "Enhancing the cost-performance of La-Mg-Ni hydrogen storage alloys for renewable energy storage system

La-Mg-Ni based alloys have a high hydrogen storage capacity but their poor cycle stability severely limits their commercial viability as an energy storage medium.  In this work, a La-Mg-Ni based alloy was blended with a commercial AB5 type alloy to improve their cycle stability and to reduce cost. It was found that a 50 wt% of AB5 addition was the optimum composition in maximising the hydrogen storage capacity and cycle stability, where 80% of the initial hydrogen storage capacity was retained after 500 cycles, with a 20% of cost saving as compared with AB5 alone.

Read the full article, as published in the Journal of Alloys and Compounds (Volume 661, pp274-281, March 2016).