Exploiting Supramolecular Dynamics in Metal-Phenolic Networks to Generate Metal-Oxide and Metal-Carbon Networks

Supramolecular complexation is a powerful strategy for engineering materials in bulk and at interfaces. Metal-phenolic networks (MPNs), which are assembled through supramolecular complexes, have emerged as suitable candidates for surface and particle engineering owing to their diverse properties. Herein, we examine the supramolecular dynamics of MPNs during thermal transformation processes. Changes in the local supramolecular network including enlarged pores, ordered aromatic packing, and metal relocation arise from thermal treatment in air or an inert atmosphere, enabling the engineering of metal-oxide networks (MONs) and metal-carbon networks, respectively. Furthermore, by integrating photo-responsive motifs (i.e., TiO2) and silanization, the MONs are endowed with reversible superhydrophobic (>150 degrees) and superhydrophilic (approximate to 0 degrees) properties. By highlighting the thermodynamics of MPNs and their transformation into diverse materials, this work offers a versatile pathway for advanced materials engineering.

Automated summary

Supramolecular complexation is a powerful strategy for engineering materials in bulk and at interfaces, with metal-phenolic networks (MPNs) emerging as suitable candidates for surface and particle engineering due to their diverse properties. Changes in the local supramolecular network during thermal transformation processes enable the engineering of metal-oxide networks (MONs) and metal-carbon networks with different properties. By integrating photo-responsive motifs and silanization, the MONs achieve reversible superhydrophobic and superhydrophilic properties, offering a versatile pathway for advanced materials engineering.