Mechanochemical synthesis of metal-organic frameworks: An efficient green pathway and mechanistic investigation

Abstract

This study presents a novel mechanochemical approach for synthesizing metal-organic frameworks (MOFs) by employing a gas-solid two-phase flow low-temperature solid-phase reaction system. This method fundamentally overcomes the limitations of conventional solvothermal synthesis, such as high energy consumption, long reaction times, and the extensive use of organic solvents, by leveraging gas-solid interactions and low-temperature solid-state mechanochemistry. We demonstrate the efficient fabrication of high-purity MOFs with excellent crystallinity, controlled porosity, and enhanced stability. Beyond establishing an efficient and environmentally benign synthetic pathway, this work provides in-depth insights into the underlying formation mechanisms. The proposed strategy not only significantly reduces the environmental footprint of MOF production but also offers a scalable and sustainable platform for their manufacturing.