The hydrogen storage performance of single BCC phase Ti-V-based alloys was investigated. A hydrogen absorption capacity of 4.2% was achieved at 293 K at a modest pressure(3 MPa) for Ti-40V-10Cr-10Mn alloy. The effecti...The hydrogen storage performance of single BCC phase Ti-V-based alloys was investigated. A hydrogen absorption capacity of 4.2% was achieved at 293 K at a modest pressure(3 MPa) for Ti-40V-10Cr-10Mn alloy. The effective hydrogen capacity of this alloy is 2.6% at 353 K. Moreover, the alloy exhibits a better activation property and flatter hydrogen absorption-desorption plateau. In order to meet different practical application needs, a series of Ti-V-based alloys with various PCT plateau pressures could be obtained by varying the element contents of the alloys, which opened the hope to bring Ti-V-based alloy into reaching the practical application for onboard hydrogen storage systems in fuel cell powered vehicles.展开更多
介绍了Ti0.76V0.24和Ti0.51V0.49两种合金及其氢化物的结构确定方法。研究了它们的吸氢性能,测得了吸氢的P C T曲线。该曲线分成两个主要区段:当H原子数与Ti V原子数之和的比值小于1 0时,为氢气的固溶区,并近似遵从Sievert(希乌尔)定律...介绍了Ti0.76V0.24和Ti0.51V0.49两种合金及其氢化物的结构确定方法。研究了它们的吸氢性能,测得了吸氢的P C T曲线。该曲线分成两个主要区段:当H原子数与Ti V原子数之和的比值小于1 0时,为氢气的固溶区,并近似遵从Sievert(希乌尔)定律;当该比值大于1 0后,有的曲线出现吸氢坪台区。分别计算了在固溶区和坪台区吸氢的热力学参数。展开更多
文摘The hydrogen storage performance of single BCC phase Ti-V-based alloys was investigated. A hydrogen absorption capacity of 4.2% was achieved at 293 K at a modest pressure(3 MPa) for Ti-40V-10Cr-10Mn alloy. The effective hydrogen capacity of this alloy is 2.6% at 353 K. Moreover, the alloy exhibits a better activation property and flatter hydrogen absorption-desorption plateau. In order to meet different practical application needs, a series of Ti-V-based alloys with various PCT plateau pressures could be obtained by varying the element contents of the alloys, which opened the hope to bring Ti-V-based alloy into reaching the practical application for onboard hydrogen storage systems in fuel cell powered vehicles.
