Proton conductive metal sulfonate frameworks

Since the easy-to-design and customization of structures, guest accessibility of cavities, and functional tunability, MOFs have evolved into a burgeoning type of proton conductors. The sulfonic acid groups in MOFs can not only be used as proton sources but also can be involved in the formation of hydrogen bonds within the frameworks, which is extremely conducive to the efficient transfer of protons. In this review, recent advances of proton conductive sulfonate-based MOFs are provided covering sulfonic acid coordinated MOFs, MOFs encapsulated sulfate groups and the composite membrane contained these MOFs and so on. In-depth discussion of the relationship of structures and proton conducting properties on such MOFs is presented. Perspectives on the opportunities and challenges are proposed and highlighted. (C) 2020 Elsevier B.V. All rights reserved.

Automated summary

This review discusses the recent advances in proton conductive sulfonate-based MOFs, analyzing the relationship between structures and proton conducting properties. Perspectives on future opportunities and challenges are proposed and highlighted.