Oxidation‐Mediated Kinetic Strategies for Engineering Metal–Phenolic Networks. (5th August 2019)

• Record Type: Journal Article
• Authors: Zhong, Qi‐Zhi; Li, Shiyao; Chen, Jingqu; Xie, Ke; Pan, Shuaijun; Richardson, Joseph J.; Caruso, Frank
• Is Part Of: Angewandte Chemie. Volume 131:Number 36(2019)
• Page Start: 12693
• Page End: 12698
• Publication Date: 2019-08-05
• Subjects: Dünne Filme -- Metall-organische Filme -- Polyphenole -- Reaktive Sauerstoffspezies -- Selbstorganisation; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201907666
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: The tunable growth of metal–organic materials has implications for engineering particles and surfaces for diverse applications. Specifically, controlling the self‐assembly of metal–phenolic networks (MPNs), an emerging class of metal–organic materials, is challenging, as previous studies suggest that growth often terminates through kinetic trapping. Herein, kinetic strategies were used to temporally and spatially control MPN growth by promoting self‐correction of the coordinating building blocks through oxidation‐mediated MPN assembly. The formation and growth mechanisms were investigated and used to engineer films with microporous structures and continuous gradients. Moreover, reactive oxygen species generated by ultrasonication expedite oxidation and result in faster (ca. 30 times) film growth than that achieved by other MPN assembly methods. This study expands our understanding of metal–phenolic chemistry towards engineering metal–phenolic materials for various applications. Abstract : Kinetische Assemblierung ist eine effiziente Methode für das schnelle und kontinuierliche Wachstum Metall‐phenolischer Netzwerkmaterialien. Unter Verwendung reaktiver Sauerstoffspezies wuchsen die Schichten etwa 30‐mal schneller als mit bislang eingesetzten Methoden. Zudem weisen die Folien einzigartige Mikrostrukturen und kontinuierliche Filmgradienten auf, was für Anwendungen im Wirkstoff‐Transport und in Trennverfahren wünschenswert ist.