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目前工业上分离高纯氢气应用最多的是致密金属膜,尤其是钯银合金膜。钯、银属于贵金属,大规模应用成本高。钒基合金膜拥有比钯银合金膜更高的透氢率、机械强度和较低的成本,且氢脆抗力较纯钒得到很大提高,成为潜在的替代钯银合金膜的材料之一。本文综述了钒基合金膜材料的研究现状,催化层对透氢性能的影响以及钒基合金膜的制备方法,并对未来的发展趋势进行了展望。
At present, the most widely used high purity hydrogen for industrial separation is the dense metal film, especially the palladium-silver alloy film. Palladium, silver is precious metal, high cost of large-scale application. Vanadium-based alloy films have higher hydrogen permeation rate, mechanical strength and lower cost than palladium-silver alloy films, and hydrogen embrittlement resistance is greatly improved than pure vanadium, becoming one of the potential alternative materials for palladium-silver alloy films. This review summarizes the research status of vanadium-based alloy membrane materials, the influence of the catalytic layer on the hydrogen permeation performance, and the preparation of vanadium-based alloy membranes. The future development trends are also prospected.