A5005698482- Covalent Organic Framework Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Photocatalysis Techniques
- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Advanced Chemical Sensor Technologies
- Conducting polymers and applications
- Luminescence and Fluorescent Materials
- ZnO doping and properties
- Graphene research and applications
- Advanced Nanomaterials in Catalysis
- Membrane Separation and Gas Transport
- Electron and X-Ray Spectroscopy Techniques
- Semiconductor materials and devices
- Advanced oxidation water treatment
- Electrocatalysts for Energy Conversion
- Advancements in Battery Materials
- Advanced battery technologies research
- Water Quality Monitoring and Analysis
- Electronic and Structural Properties of Oxides
- Transition Metal Oxide Nanomaterials
- Polyoxometalates: Synthesis and Applications
Sun Yat-sen University
2021-2025
Heilongjiang University
2017-2025
State Key Laboratory of Optoelectronic Materials and Technology
2024
Dalian Maritime University
2024
Open AccessCCS ChemistryRESEARCH ARTICLE7 Dec 2022Aqueous Synthesis of Covalent Organic Frameworks as Photocatalysts for Hydrogen Peroxide Production Fanglin Tan, Yuanyuan Zheng, Zhipeng Zhou, Honglei Wang, Xin Dong, Jing Yang, Zhaowei Ou, Haoyuan Qi, Wei Liu, Zhikun Zheng and Xudong Chen Tan Key Laboratory Polymeric Composite Functional Materials Ministry Education, School Chemistry, State Optoelectronic Technologies, Sun Yat-sen University, Guangzhou 510275 , Low-Carbon Chemistry & Energy...
The core features of covalent organic frameworks (COFs) are crystallinity and porosity. However, the synthesis single-crystal COFs with monomers diverse reactivity adjustment their pore structures remain challenging. Here, we show that linkers can react a node to form guide other either or amorphous polymers gain mixed components, which homogeneous on unit cell scale controlled ratios. With linker-guided crystal growth method, created nine types up different more complex than any known...
Most reported trimethylamine (TMA) sensors have to operate at high temperature, which will consume energy highly. To detect TMA low it is necessary modify the existing materials or develop new materials. In this paper, sensor based on MoO3/Bi2Mo3O12 hollow microspheres can work operating temperature of 170 °C, were prepared via a simple solvothermal route. The phase and morphology product characterized by an X-ray diffraction meter, scanning electron microscope transmission microscope....
It has been a longstanding challenge to rationally synthesize thin films of organic two-dimensional (2D) crystals with large single-crystalline domains. Here, we present general strategy for the creation 2D covalent frameworks (COFs) on water surface, assisted by charged polymer. The morphology preorganized monomers underneath polymer surface and their diffusion were crucial formation crystals. Thin COFs an average domain size around 3.57 ± 2.57 μm2 have achieved, lattice structure,...
Nanoporous materials are widely explored as efficient adsorbents for the storage of gases and liquids well effective low-dielectric in large-scale integrated circuits. These applications require fast heat transfer, while most nanoporous substances thermal insulators. Here, oriented growth micrometer-sized single-crystal covalent organic frameworks (COFs) ribbons with structures at an air–water interface is presented. The obtained COFs interconnected into a continuous purely crystalline thin...
Abstract Designing cost‐effective, highly active, and durable platinum (Pt)‐based electrocatalysts is a crucial endeavor in electrochemical hydrogen evolution reaction (HER). Herein, the low‐content Pt (0.8 wt%)/tungsten oxide/reduced graphene oxide aerogel (LPWGA) electrocatalyst with excellent HER activity durability developed by employing tungsten (WGA) obtained from facile solvothermal process as support, followed deposition of nanoparticles. The WGA support abundant oxygen vacancies...
We synthesized a large area ordered and conductive PANI film at the air–water interface. It can be used to prepare flexible sensor for trace NH 3 detection discoloration test paper monitor freshness of shrimp.
PANI/TiO2 nanocomposites spheres were synthesized using a simple and efficient one-step hydrothermal process. The morphology structure of investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM) techniques. nanocomposite sphere-based sensor exhibits good selectivity, sensitivity (5.4 to 100 ppm), repeatability, long-term stability low detection limit (0.5 ppm) ammonia at room temperature (20 ± 5°C). It also shows linearity relationship in the range...
Due to the enormous chemical and structural diversities designable properties functionalities, covalent organic frameworks (COFs) hold great promise as tailored materials for industrial applications in electronics, biology, energy technologies. They were typically obtained partially crystalline materials, although a few single-crystal three-dimensional (3D) COFs have been recently with structures probed by diffraction techniques. However, it remains challenging grow controlled morphology...
Main observation and conclusion Imine‐linked covalent organic frameworks (COFs) have attracted extensive attention due to designable structures, tunable properties, excellent thermal chemical stability. They were typically obtained as insoluble unprocessable powders, which seriously limits their full promise. Progress has been made in the synthesis of thin films imine‐linked COFs by interfacial synthesis. However, highly crystalline, self‐supporting remains challenging. Here, we employed a...
Comprehensive Summary Film plays a key role in the sustainable development of our society. Freestanding thin films two‐dimensional covalent organic frameworks (COFs) have been produced by interface, spin coating, microwave‐assisted synthesis, and screen printing methods are applied nanofiltration, molecular separation, photochemical sensing, anion transport, heat conduction, proton conduction. On other hand, synthesis their three‐dimensional (3D) analogues subsequent integration devices...
Comprehensive Summary The dilemma for the synthesis of covalent organic frameworks (COFs) is crystallinity and stability. Herein, we present a single‐crystalline amide‐linked COF, demonstrate its excellent chemical as well thermal stabilities. This study will inspire wide spectrum highly crystalline stable COFs, promote their structure‐property investigations boost applications in selective gas adsorption, storage separation.
Comprehensive Summary Chiral covalent organic frameworks (COFs) have shown promising applications in asymmetric catalysis, enantiomer separation and chiral recognition due to their tunable structures permanent porosity. Currently, synthesis of COFs mainly relies on direct‐ method which requires monomers polymerize crystallize with symmetric post‐synthesis has been greatly limited having complete reactions the micro‐/meso‐sized pores COFs. Recently, two‐dimensional by replacement competitor...