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In this paper, the effects of substitution of Pr for La on the microstructure and electrochemical properties of La0.7-xPrxMg0.3Ni2.45Co0.75Mn0.1Al0.2 (x=0.00–0.30) hydrogen storage alloys have been studied systematically. XRD Rietveld analyses showed that all alloys consisted of (La,Mg)Ni3 phase and LaNi5 phase. With the increase in Pr content, the lattice parameters and cell volumes of the component...
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