Lead-Based Metal–Organic Framework with Stable Lithium Anodic Performance

A microporous Pb-based metal–organic framework (MOF) [Pb­(4,4′-ocppy)2]·7H2O (Pb-MOF) has been constructed from 4-(4-carboxyphenyl)­pyridine N-oxide and Pb­(NO3)2. Structural analysis reveals that the Pb-MOF possesses three-dimensional framework with a one-dimensional rhombic channel. When tested as a lithium-ion battery anode, a reversible lithium storage capacity of 489 mAh g–1 was maintained after 500 cycles at 100 mA g–1 as well as excellent cycling stability. The superior electrochemical performance may be derived from the sustenance of the Pb-MOF framework and compositional features of the organic moiety.