Polymeric membrane-based gas separation has found wide applications in industry, such as carbon capture, hydrogen recovery, natural gas sweetening, as well as oxygen enrichment. Commercial gas separation membranes are required to have high gas permeability and selectivity, while being cost-effective to process. Mixed matrix membranes (MMMs) have a composite structure that consists of polymers and fillers, therefore featuring the advantages of both materials. Much effort has been made to improve the gas separation performance of MMMs as well as general membrane properties, such as mechanical strength and thermal stability. This perspective describes potential use of MMMs for carbon capture applications, explores their limitations in fabrication and methods to overcome them, and addresses their performance under industry gas conditions.

基于聚合物膜的气体分离已在工业中得到广泛应用，例如碳捕获，氢回收，天然气脱硫以及氧气富集。要求商业用气体分离膜具有高的气体渗透性和选择性，同时要具有成本效益的处理方法。混合基质膜（MMM）具有由聚合物和填料组成的复合结构，因此具有两种材料的优点。为了改善MMM的气体分离性能以及一般的膜性能（如机械强度和热稳定性），已经做了很多努力。该观点介绍了MMM在碳捕集应用中的潜在用途，探讨了其在制造中的局限性以及克服它们的方法，并论述了其在工业气体条件下的性能。