系统研究了非化学计量比合金La0.6Nd0.4Ni4.8Mn0.2M0.1(M=Cu,Zr)的贮氢性能.结果表明,添加Cu能提高合金的平台压力,减轻滞后效应:而添加Zr能够有效提高合金的动力学性能和抗粉化性能,降低平台压力.但Cu和Zr的添加使贮氢容量有所降低.研究表明,XRD(111)主峰半高宽FWHM值及晶格常数a/c值与合金的滞后因子有相同的变化趋势,平台压力、吸氢焓变与晶胞参数a有很好的线性关系.
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