Scalable Synthesis and Processing of Porous Organic Polymers for Continuous-Flow Noble Metal Recycling and Catalysis
Year: 2026
Type: preprint
Abstract: Porous organic polymers (POPs) hold great promise for separations and catalysis but remain limited by costly syntheses and poor processability. Here we report the scalable synthesis of freestanding imine/aminal-linked POP gels from inexpensive monomers under mild conditions. The gels can be molded into diverse architectures and converted into mechanically robust monoliths with high surface areas of up to 1055 m2/g. The POPs exhibit high adsorption capacities of 3225 mg/g for [AuCl4]- and 1375 mg/g for [PdCl4]2-. Integrated into continuousflow columns, they enable the treatment of electronic-waste leachates at a throughput of 1 L/h, achieving a gold recovery efficiency of 99%. The noble-metal-loaded POP column can be operated as a continuous-flow Suzuki reactor, delivering a space–time yield of 2.75 kgbiphenyl/LPOP·day. This work establishes a practical platform for fabrication of scalable, processable POPs that integrate noble-metal recovery with continuous-flow catalysis, advancing their application toward circular resource utilization and sustainable chemical manufacturing.
Source: ChemRxiv
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7222318907