Fernández-Castro Pablo, Ortiz Alfredo, Gorri Daniel
Departamento de Ingenierías Química y Biomolecular, ETSIIyT, Universidad de Cantabria, Avda. de Los Castros s/n, 39005 Santander, Spain.
Polymers (Basel). 2021 Apr 15;13(8):1292. doi: 10.3390/polym13081292.
Hydrogen recovery is at the center of the energy transition guidelines promoted by governments, owing to its applicability as an energy resource, but calls for energetically nonintensive recovery methods. The employment of polymeric membranes in selective gas separations has arisen as a potential alternative, as its established commercial availability demonstrates. However, enhanced features need to be developed to achieve adequate mechanical properties and the membrane performance that allows the obtention of hydrogen with the required industrial purity. Matrimid, as a polyimide, is an attractive material providing relatively good performance to selectively recover hydrogen. As a consequence, this review aims to study and summarize the main results, mechanisms involved and advances in the use of Matrimid as a selective material for hydrogen separation to date, delving into membrane fabrication procedures that increase the effectiveness of hydrogen recovery, i.e., the addition of fillers (within which ZIFs have acquired extraordinary importance), chemical crosslinking or polymeric blending, among others.
由于氢气作为一种能源资源的适用性，氢气回收处于政府推动的能源转型指导方针的核心位置，但需要能量消耗低的回收方法。正如其已有的商业可用性所表明的那样，在选择性气体分离中使用聚合物膜已成为一种潜在的替代方法。然而，需要开发增强特性以实现足够的机械性能和膜性能，从而能够获得所需工业纯度的氢气。作为一种聚酰亚胺，Matrimid是一种有吸引力的材料，在选择性回收氢气方面具有相对良好的性能。因此，本综述旨在研究和总结迄今为止使用Matrimid作为氢气分离选择性材料的主要结果、涉及的机制和进展，深入探讨提高氢气回收效率的膜制备程序，即添加填料（其中金属有机框架材料已变得尤为重要）、化学交联或聚合物共混等。
