Mesopores in Metal–Organic Frameworks Rendering Enhanced Rate Capability of Pore-Confined Polyaniline for Supercapacitors

, outperforming the pristine PANI (378 F/g). In addition, all the three PANI confined within MOFs exhibit better rate capability compared to the pristine PANI, and the trend of rate capability follows that of the pore sizes. Findings here highlight the importance of the hierarchical porosity and large mesopores in MOFs when MOFs are employed in electrochemical applications, and shed light on utilizing such a mesopore-promoting effect in various MOFs and MOF-based composites for a range of energy-storage and electrocatalytic applications.