Scalable Synthesis and Processing of Porous Organic Polymers for Continuous-Flow Noble Metal Recycling and Catalysis
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.
Related
- Hydrogen Atom Transfer-Triggered Chemical Recycling of Commercial Poly(methyl methacrylate) Utilizing Continuous Monomer Removal.
- Protecting Groups as Catalysts: Direct Synthesis of Primary Amines from Ammonia under Carbonyl Catalysis
- An innovative magnetic l-lysine-dialdehyde nanocellulose for sonochemical heterogeneous catalysis in the green synthesis of ultrapure tri-substituted imidazoles
- Thermochemical Co-Valorization of Sewage Sludge and Plastic Waste: Co-Processing and Sludge-Derived Catalysis
- Synthesis of heterocycles containing a spiro-cyclopropane unit via orthogonal tandem catalysis involving Au(III)-hydroelementation and Rh(II)-cyclopropanation reactions
BibTeX
@misc{li2026scalable,
title = {{Scalable Synthesis and Processing of Porous Organic Polymers for Continuous-Flow Noble Metal Recycling and Catalysis}},
author = {Zhong Li and Michelle Åhlén and Yayu Yan and Xuejie Li and Samson Afewerki and Qiaohong Li and Chao Xu},
howpublished = {ChemRxiv},
year = {2026},
month = oct,
doi = {10.26434/chemrxiv.15010516/v1},
url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010516/v1},
note = {CC BY},
}
RIS
TY - UNPB
TI - Scalable Synthesis and Processing of Porous Organic Polymers for Continuous-Flow Noble Metal Recycling and Catalysis
AU - Zhong Li
AU - Michelle Åhlén
AU - Yayu Yan
AU - Xuejie Li
AU - Samson Afewerki
AU - Qiaohong Li
AU - Chao Xu
PY - 2026
DA - 2026/10/15
PB - ChemRxiv
DO - 10.26434/chemrxiv.15010516/v1
UR - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010516/v1
AB - 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.
ER -