对名义成分为TiMn1.2-xCrxV0.25Fe0.05(x=0.0,0.1,0.2,0.3,0.4)合金的储氢性能进行了研究结果表明,合金的晶格常数和晶胞体积随Cr含量的增加而增大;随着Cr含量的增加,合金的吸/放氢平台压力和滞后效应减小.随着Cr含量的变化,TiMn1.2-xCrxV0.25Fe0.05合金112峰半高宽(FWHM)和晶格常数c/a比率的变化与该合金吸/放氢平台斜率的变化-致,表明合金的平台斜率与合金的晶格畸变关系密切.TiMn1.0Cr0.2V0.25Fe0.05合金具有较大的储氢量、低的平台压力、小的滞后和斜率,适于作为质子交换膜燃料电池供氢源的储氢瓶应用.
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