Electrochemical hydrogen storage properties of Ti1.4V0.6Ni alloy comprising quasicrystal coating with Cu
作者:Lianshan Sun、Jing Lin、Zhanyi Cao、Fei Liang、Limin Wang
DOI:10.1016/j.jallcom.2015.07.252
日期:2015.11
Abstract The Ti 1.4 V 0.6 Ni alloy ribbons are prepared by arc-melting and subsequently melt spinning technique. Different percentage compositions of x Cu ( x = 1, 3, 5 and 10 wt%) are covered on the surface of the alloy particles utilizing electro-less plating method. The phase structures of the Ti 1.4 V 0.6 Ni alloy contain icosahedral quasicrystal phase (I-phase), fcc-Ti 2 Ni-type phase and bcc-V-based
摘要 采用电弧熔炼和熔纺技术制备了Ti 1.4 V 0.6 Ni合金薄带。使用化学镀方法在合金颗粒表面覆盖不同百分比的 x Cu ( x = 1, 3, 5 和 10 wt%)。Ti 1.4 V 0.6 Ni合金的相结构包含二十面体准晶相(I相)、fcc-Ti 2 Ni型相和bcc-V基固溶体相。随着 x 值的增加,当 x = 10 时,最大电化学储氢容量达到 260 mAh g -1。100 次循环后,与裸 Ti 1.4 V 0.6 Ni 相比,在合金上覆盖 10 wt% Cu 提高了 23% 的容量保持率. Cu 具有良好的导电性和耐腐蚀性,特别是它还能抑制 V 从合金中溶解。