Development of thin Pd-based composite membrane suitable for hydrogen separation at high temparature

提出的研究是开发用于高温氢分离的薄pd基复合膜。本研究的短期目标是：(1)寻找既具有适当的透氢性又具有良好热稳定性的钯基合金；(2)开发在合适的衬底上沉积有前途的合金以形成无针孔的薄钯基复合膜的技术；(3)研究杂质对这些薄合金复合膜透氢性能的影响。长期目标是：(1)开发在高温（500-650C）下具有适当稳定性的薄pd基合金复合膜；(2)扩大制备这些复合膜的技术，使它们有足够的面积适合实际工业应用。

The proposed research is to develop thin Pd-based composite membranes for hydrogen separation applications at high temperatures. The short term objectives of this research are to: (1) seek Pd-based alloys possessing both appropriate hydrogen permeability and good thermal stability, (2) develop techniques for depositing promising alloys on suitable substrates to form thin pinhole-free Pd-based composite membrane, and (3) study impacts of impurities on hydrogen permeation performance of these thin alloy composite membranes. The long term objectives are to: (1) develop thin Pd-based alloy composite membranes with appropriate stability at high temperatures (500-650C) and (2) scale-up the techniques for preparing these composite membranes so that they have sufficient area to be suitable for practical industrial applications.