Pan Shuaijun, Goudeli Eirini, Chen Jingqu, Lin Zhixing, Zhong Qi-Zhi, Zhang Wenjie, Yu Haitao, Guo Rui, Richardson Joseph J, Caruso Frank
ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, and the, Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia.
Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia.
Angew Chem Int Ed Engl. 2021 Jun 21;60(26):14586-14594. doi: 10.1002/anie.202103044. Epub 2021 May 17.
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., TiO ) and silanization, the MONs are endowed with reversible superhydrophobic (>150°) and superhydrophilic (≈0°) properties. By highlighting the thermodynamics of MPNs and their transformation into diverse materials, this work offers a versatile pathway for advanced materials engineering.
超分子络合是一种用于在本体和界面处设计材料的强大策略。通过超分子络合物组装而成的金属-酚醛网络（MPN），因其多样的性质，已成为表面和颗粒工程的合适候选材料。在此，我们研究了MPN在热转变过程中的超分子动力学。在空气或惰性气氛中进行热处理会导致局部超分子网络发生变化，包括孔隙扩大、芳香族堆积有序化以及金属重新分布，这分别使得金属氧化物网络（MON）和金属碳网络的工程化成为可能。此外，通过整合光响应基序（即TiO）和硅烷化处理，MON被赋予了可逆的超疏水（>150°）和超亲水（≈0°）特性。通过强调MPN的热力学及其向多种材料的转变，这项工作为先进材料工程提供了一条通用途径。
