摘要
采用机械球磨法在Mg(NH2)2/2LiH中添加5%(质量分数)纳米Ti粉合成了复合储氢材料。升温脱附法(TPD)及等容法储氢性能测试表明,纳米Ti粉使Mg(NH2)2/2LiH的放氢峰温度降低了43℃,且180℃、0.1 MPa氢压下,添加纳米Ti粉复合材料前100 min放氢量为4.2%(质量分数),而未添加Ti粉的复合材料前100 min的放氢量只有2.1%(质量分数)。运用X射线荧光分析(XRD)、扫描电镜(SEM)和背散射电子像分析了复合材料动力学性能提高的原因。
The kinetics properties of 5% Nano-Ti doped Mg（NH2）2/2LiH mixture prepared by mechanical milling were investigated by Sievert＇s type apparatus,TPD vice,and isovolumic method.Temperature-programmed-desorption and Sievert＇s technology test showed that the 5% Nano-Ti doped Mg（NH2）2/2LiH mixture exhibited a 43 ℃ lower desorption peak temperature compared to the pure Mg（NH2）2/2LiH,and can desorb 4.2% of hydrogen which is great more than the 2.1% for the pure Mg（NH2）2/2LiH mixture to 0.1 MPa at 180 ℃ in 100 minutes.XRD and SEM were applied to analyze why the Nano-Ti can enhanced the kinetics of Mg（NH2）2/2LiH mixture.
出处
《石油化工设备》
CAS
2011年第4期13-16,共4页
Petro-Chemical Equipment
