A5055442816- Covalent Organic Framework Applications
- Fuel Cells and Related Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Membrane-based Ion Separation Techniques
- Membrane Separation Technologies
- Membrane Separation and Gas Transport
- Advanced biosensing and bioanalysis techniques
- Nanopore and Nanochannel Transport Studies
- Plant biochemistry and biosynthesis
- Heavy metals in environment
- Horticultural and Viticultural Research
- Advanced Chemical Sensor Technologies
- Fermentation and Sensory Analysis
- Conducting polymers and applications
- Iron oxide chemistry and applications
- Advanced Sensor and Energy Harvesting Materials
- Plasmonic and Surface Plasmon Research
- Gas Sensing Nanomaterials and Sensors
- Extracellular vesicles in disease
- Gold and Silver Nanoparticles Synthesis and Applications
- Chromium effects and bioremediation
- Gaze Tracking and Assistive Technology
- biodegradable polymer synthesis and properties
- Pesticide Residue Analysis and Safety
- Microbial Fuel Cells and Bioremediation
Tianjin University
2019-2025
University of Science and Technology of China
2022-2025
State Key Laboratory of Food Science and Technology
2025
Jiangnan University
2025
Suzhou Institute of Nano-tech and Nano-bionics
2022-2025
Chinese Academy of Sciences
2022-2025
NanoBio (United States)
2025
Interface (United Kingdom)
2025
Beihang University
2021-2024
China Jiliang University
2024
The idea of spatial confinement has gained widespread interest in myriad applications. Especially, the confined short hydrogen-bond (SHB) network could afford an attractive opportunity to enable proton transfer a nearly barrierless manner, but its practical implementation been challenging. Herein, we report SHB on surface ionic covalent organic framework (COF) membranes decorated by densely and uniformly distributed hydrophilic ligands. Combined experimental theoretical evidences have...
Ionic covalent organic framework membranes (iCOFMs) hold great promise in ion conduction-relevant applications because the high content and monodispersed ionic groups could afford superior conduction. The key to push upper limit of conductivity is maximize exchange capacity (IEC). Here, we explore iCOFMs with a superhigh 4.6 mmol g-1, using dual-activation interfacial polymerization strategy. Fukui function employed as descriptor monomer reactivity. We use Brønsted acid activate aldehyde...
Covalent organic framework (COF) membranes hold potential for widespread applicability, but scalable fabrication is challenging. Here, we demonstrate the disorder-to-order transformation from amorphous polymeric membrane to crystalline COF via monomer exchange. Solution processing used prepare and replacing selected based on chemical thermodynamical stability of final framework. Reversible imine bonds allow extraneous monomers replace pristine within membrane, driving disordered network...
Controllable ion transport through nanochannels is crucial for biological and artificial membrane systems. Covalent organic frameworks (COFs) with regular tunable are emerging as an ideal material platform to develop synthetic membranes transport. However, exclusion by COF remains challenging because most materials have large-sized leading nonselective of small ions. Here we ionic (iCOFMs) control charged framework nanochannels, the interior surfaces which covered arrayed sulfonate groups...
Fabrication of covalent organic framework (COF) membranes for molecular transport has excited highly pragmatic interest as a low energy and cost-effective route separations. However, currently, most COF are assembled via one-step procedure in liquid phase(s) by concurrent polymerization crystallization, which often accompanied loosely packed less ordered structure. Herein, we propose two-step phase switching strategy, decouples the process crystallization to assemble compact crystalline...
3D ionic covalent organic framework (COF) membranes, which are envisioned to be able break the trade-off between ion conductivity and selectivity, waiting for exploitation. Herein, we report fabrication of a sulfonic acid-functionalized COF membrane (3D SCOF) efficient selective transport, using dual acid-mediated interfacial polymerization strategy. The SCOF membranes possess highly interconnected transport channels, ultramicroporous pore sizes (0.97 nm), abundant sulfonate groups (with...
Side-chain engineering of covalent organic frameworks as advanced ion conductors is a critical issue to be explored. Herein, ionic framework membranes (iCOFMs) with spacer-engineered channel are de novo designed and prepared. The channels decorated side chains comprising spacers having different carbon chain lengths the -SO3 H groups at end. Attributed synergistic contribution from groups, iCOFM moderate-length spacer exhibit highest through-plane proton conductivity 889 mS cm-1 90 °C.
For the first time, we demonstrate utilization of covalent organic framework (COF) membranes for efficient ethylene/ethane separation.
Anion exchange membranes with high anion conductivity are highly desired for electrochemical applications. Increasing ion capacity is a straightforward approach to enhancing but faces challenge in dimensional stability. Herein, we report the design and preparation of three kinds isoreticular covalent organic framework (COF) bearing tunable quaternary ammonium group densities as conductors. Therein, cationic groups integrated into backbones by flexible ether-bonded alkyl side chains. The...
Phosphoric acid (H3PO4) doping is a widely employed strategy to facilitate anhydrous proton transport in high‐temperature exchange membrane fuel cells (HT‐PEMFCs). However, significant H3PO4 leaching during long‐term operation poses critical challenges maintaining stability and conductivity. Herein, incorporated into positively charged nanochannels of quaternized covalent organic framework membranes (QACOFMs), leveraging strong electrostatic interactions confinement effects achieve...
Mixed matrix membranes (MMMs), which are fabricated by incorporating dispersed fillers into a continuous polymeric matrix, have been broadly utilized in gas separation due to their unique hierarchical structures and enhanced performance. Fillers of intrinsic nanopores (FINs) drawn considerable attention because they not only can provide additional molecular transport channels but also potential size-sieving property. Although many excellent reviews about MMMs published, quite few them...
A free-standing 3D COF membrane with interconnected nanochannels was fabricated using interfacial polymerization method, and exhibited ultrafast proton conduction after being loaded carriers.
Developing all-solid-state electrolytes, the chips for lithium-metal batteries, with superior electrochemical and mechanical properties awaits disruptive materials. Herein, ionic covalent organic framework membranes are explored as solid-state electrolytes single Li