A Stable Metal–Organic Framework Featuring a Local Buffer Environment for Carbon Dioxide Fixation. (15th March 2018)

• Record Type: Journal Article
• Authors: He, Hongming; Sun, Qi; Gao, Wenyang; Perman, Jason A.; Sun, Fuxing; Zhu, Guangshan; Aguila, Briana; Forrest, Katherine; Space, Brian; Ma, Shengqian
• Is Part Of: Angewandte Chemie. Volume 130:Number 17(2018)
• Page Start: 4747
• Page End: 4752
• Publication Date: 2018-03-15
• Subjects: Kohlendioxid-Fixierung -- Metall-organische Gerüste -- Puffer -- Säure-Base-Paare -- Stabilität; Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201801122
• Languages: English
• ISSNs: 0044-8249

Abstract

Abstract: A majority of metal–organic frameworks (MOFs) fail to preserve their physical and chemical properties after exposure to acidic, neutral, or alkaline aqueous solutions, therefore limiting their practical applications in many areas. The strategy demonstrated herein is the design and synthesis of an organic ligand that behaves as a buffer to drastically boost the aqueous stability of a porous MOF (JUC‐1000), which maintains its structural integrity at low and high pH values. The local buffer environment resulting from the weak acid–base pairs of the custom‐designed organic ligand also greatly facilitates the performance of JUC‐1000 in the chemical fixation of carbon dioxide under ambient conditions, outperforming a series of benchmark catalysts. Abstract : Eine Pufferstrategie erhöht die Stabilität eines MOF in Wasser über einen breiten pH‐Bereich. Die lokale Pufferumgebung, die aus den schwachen Säure‐Base‐Paaren (grünblaue Stäbe rechts im Bild) des maßgeschneidert entwickelten organischen Liganden resultiert, verbessert außerdem erheblich die Eigenschaften des MOF in der chemischen Fixierung von Kohlendioxid unter Umgebungsbedingungen.