Thanks to their high hydrogen permeability, vanadium based alloys can be a valuable and sustainable alternative to palladium alloys, commonly employed in commercial membranes for hydrogen purification/separation. In this work, the unprecedented deposition of micrometric vanadium-based multilayers and their investigation as hydrogen selective membranes have been reported. In particular, this work describes the use of High Power Impulse Magnetron Sputtering, a technique easily scalable also for complex geometries, for the deposition of dense and crystalline Pd/V₉₃Pd₇/Pd multilayers with total thickness <7 μm onto porous alumina. These membranes showed high hydrogen fluxes in the 300–400 °C range, up to 0.26 mol m⁻² s⁻¹ at 300 kPa pressure difference and 375 °C, as well as an unexpected and significant resistance to hydrogen embrittlement and to syngas in operating conditions.

由于其高的氢渗透性，钒基合金可以成为钯合金的有价值且可持续的替代品，钯合金通常用于商业膜中进行氢纯化/分离。在这项工作中，已经报道了空前的微米级钒基多层沉积及其作为氢选择性膜的研究。特别是，这项工作描述了使用高功率脉冲磁控溅射技术，该技术也可轻松扩展，适用于复杂的几何形状，用于在多孔氧化铝上沉积总厚度<7μm的致密且结晶的Pd / V ₉₃ Pd ₇ / Pd多层膜。这些膜在300–400°C的范围内显示出高氢通量，最高可达0.26 mol m ^-2  s ^-1 在300 kPa的压力差和375°C的温度下，以及在运行条件下对氢气脆化和合成气具有出乎意料且显着的抗性。