SBIR Phase I: An Engineered Diffusion Barrier for Preparation of Pd Membranes on Tubular Porous Stainless Steel Substrate

这个小企业创新研究（SBIR）第一期项目的重点是开发一种创新的扩散屏障，用于在管状多孔不锈钢基体上制备Pd薄膜。支撑在管状多孔SS基板上的钯薄膜为钯膜用于制氢/回收提供了一条商业上可行的途径，特别是在大规模应用中。提出了一种微工程扩散屏障，它在概念上能够适应金属基板表面的物理变化、热失配和其他因素。更重要的是，这种扩散屏障可以灵活地调整其孔径和表面形貌，从而通过化学镀形成超薄、无缺陷和强粘附的Pd膜。所提出的扩散屏障可以提供一个实际可行的基于pd的氢分离装置，有利于燃料电池和工业氢的应用，并减少温室气体排放。

This Small Business Innovation Research (SBIR) Phase I project focuses on the development of an innovative diffusion barrier for the preparation of Pd thin film on tubular porous stainless steel substrate. A thin Pd film supported on tubular porous SS substrate provides a commercially viable avenue for the use of palladium membranes for hydrogen production/recovery, particularly for large-scale applications. A micro-engineered diffusion barrier is proposed, which is able conceptually to accommodate the physical change of metal substrate surface, thermal mismatch, and other factors. More importantly this diffusion barrier offers flexibility in tailoring its pore size and surface topography to be optimal for the formation of an ultra-thin, defect free, and strongly adhered Pd film via electroless plating. The proposed diffusion barrier could offer a practically viable Pd-based hydrogen separation device, which can benefit fuel cell and industrial hydrogen applications, and greenhouse gas reduction.