Hydrated Proton-Conductive Metal-Organic Frameworks.

Recent investigations into proton conduction in metal-organic frameworks (MOFs) indicate that MOFs are promising materials as a new class of proton conductors. Hydrated proton-conductive MOFs show not only high proton conductivity of approximately 10-2  S cm-1 , which is comparable to that of a practical organic polymer, but also structural visibility of proton-conducting pathways inside the materials owing to their high crystallinity. Herein, studies on the design, synthesis, and proton-conductive properties of MOFs with hydrated proton-conductive systems are introduced.