A5056836026- Covalent Organic Framework Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Supercapacitor Materials and Fabrication
- Membrane Separation and Gas Transport
- Advanced Photocatalysis Techniques
- Luminescence and Fluorescent Materials
- Graphene research and applications
- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Molecular Sensors and Ion Detection
- Supramolecular Chemistry and Complexes
- Mesoporous Materials and Catalysis
- Carbon Dioxide Capture Technologies
- Graphene and Nanomaterials Applications
- Conducting polymers and applications
- Advanced battery technologies research
- Analytical Chemistry and Chromatography
- Catalytic Processes in Materials Science
- Supramolecular Self-Assembly in Materials
- Porphyrin and Phthalocyanine Chemistry
- Polyoxometalates: Synthesis and Applications
- Recycling and Waste Management Techniques
- Carbon Nanotubes in Composites
- Electrocatalysts for Energy Conversion
- Nanomaterials for catalytic reactions
National Center for Nanoscience and Technology
2016-2025
University of Chinese Academy of Sciences
2011-2025
Center for NanoScience
2015-2023
Sino-Danish Centre for Education and Research
2018-2023
Center for Excellence in Education
2016-2021
Chinese Academy of Sciences
2009-2018
Tianjin University of Traditional Chinese Medicine
2016
Yangzhou University
2016
National University of Defense Technology
2013
State Key Laboratory of Transducer Technology
2011-2013
We introduced a facile method to construct hierarchical nanocomposites by combining one-dimensional (1D) conducting polyaniline (PANI) nanowires with 2D graphene oxide (GO) nanosheets. PANI nanowire arrays are aligned vertically on GO substrate. The morphologies of can be controlled adjusting the ratios aniline GO, which attributed different nucleation processes. nanocomposite structures PANI−GO were further proved UV−vis, FTIR, and XRD measurements. possessed higher electrochemical...
Microporous polycarbazole via straightforward carbazole-based oxidative coupling polymerization is reported. The synthesis route exhibits cost-effective advantages, which are essential for scale-up preparation. Brunauer-Emmett-Teller specific surface area obtained polymer up to 2220 m(2) g(-1). Gas (H(2) and CO(2)) adsorption isotherms show that its hydrogen storage can reach 2.80 wt % (1.0 bar 77 K) the uptake capacity carbon dioxide 21.2 273 K), a promising potential clean energy...
A facile approach to disperse graphene in aqueous solution is described. Triblock copolymers (PEO-b-PPO-b-PEO) were employed as the solubilizing agent for chemically exfoliated graphite oxide, and formed through situ reduction by hydrazine. The formation of stable copolymer-coated due noncovalent interaction between hydrophobic PPO segments triblock copolymer surface, whereas hydrophilic PEO chains extend into water. It was characterized atomic force microscopy (AFM), X-ray photoelectron...
We report a facile method for the fabrication of three-dimensional (3D) porous materials via interaction between graphene oxide (GO) sheets and polyethylenimine (PEI) with high amine density at room temperature under atmospheric pressure without stirring. The structural physical properties GO-PEI (GEPMs) are investigated by scanning electron microscopy, X-ray diffraction, thermogravimetric analysis, nitrogen adsorption-desorption measurement their chemical analyzed photoelectron...
Nitrogen-doped graphene has been demonstrated to be an excellent multifunctional material due its intriguing features such as outstanding electrocatalytic activity, high electrical conductivity, and good chemical stability well wettability. However, synthesizing the nitrogen-doped with a nitrogen content large specific surface area is still challenge. In this study, we prepared aerogel (NGA) porosity by means of simple hydrothermal reaction, in which oxide ammonia are adopted carbon source,...
High mechanical performances of macroscopic graphene oxide (GO) papers are attracting great interest owing to their merits lightweight and multiple functionalities. However, the loading role individual nanosheets its effect on properties GO not yet well understood. Herein, we effectively tailored interlayer adhesions by introducing small molecules, that is, glutaraldehyde (GA) water into gallery regions. With help in situ Raman spectroscopy, compared varied load-reinforcing roles nanosheets,...
Porous organic polymers are efficient photocatalysts in synthesis, hydrogen evolution, CO<sub>2</sub> reduction, and degradation of pollutants.
Singlet oxygen ((1) O2 ) is of great interest because its potential applications in photodynamic therapy, photooxidation toxic molecules, and photochemical synthesis. Herein, we report novel metallophthalocyanine (MPc) based conjugated microporous polymers (MPc-CMPs) as photosensitizers for the generation (1) . The rigid structure efficiently improves exposure majority MPc units to oxygen. MPc-CMPs also exhibit an enhanced light-harvesting capability far-red region through their extended...
Abstract Defects are deliberately introduced into covalent organic frameworks (COFs) via a three‐component condensation strategy. The defective COFs (dCOF‐NH 2 ‐ X s, = 20, 40, and 60) possess favorable crystallinity porosity, as well have active amine functional groups anchoring sites for further postfunctionalization. By introducing imidazolium onto the pore walls of Schiff‐base reaction, dCOF‐ImBr‐ s‐ dCOF‐ImTFSI‐ s‐based materials employed all‐solid‐state electrolytes lithium‐ion...
Constructing a powerful photocatalytic system that can achieve the carbon dioxide (CO2 ) reduction half-reaction and water (H2 O) oxidation simultaneously is very challenging but meaningful task. Herein, porous material with crystalline topological network, named viCOF-bpy-Re, was rationally synthesized by incorporating rhenium complexes as reductive sites triazine ring structures oxidative via robust -C=C- bond linkages. The charge-separation ability of viCOF-bpy-Re promoted low polarized...
Abstract The 3D covalent organic frameworks (COFs) have attracted considerable attention owing to their unique structural characteristics. However, most of COFs interpenetration phenomena, which will result in decreased surface area and porosities, thus limited applications molecular/gas capture. Developing with non‐fold is challenging but significant because the existence non‐covalent interactions between adjacent nets. Herein, a new COF (BMTA‐TFPM‐COF) dia topology for Au ion capture first...
Covalent organic frameworks (COFs) with structural designability and tunability of photophysical properties enable them to be a promising class luminescent materials by incorporating well-designed fluorescent units directly into the periodic skeletons. The COFs are mainly affected features, which determine conjugation degree, charge delocalization ability, exciton dynamics COFs. To understand relationship between COF structures their properties, two same pyrene chromophore but different...
A simple, flexible, reproducible, high-yielding (ca. 100%) synthesis of hexagonally facetted SBA-15 straight rods with uniform sizes 1.5 x 0.4 mum) under static conditions without using inorganic salts is provided. This method affords rodlike particles temperature-dependent pore ranging from 5.8 to 12.5 nm but similar external dimensions. work shows that in order prepare short monodispersed rods, (i) the absence stirring essential, (ii) temperature first stage should not exceed 60 degrees C,...
Abstract A kind of graphene‐based nanoporous material is prepared through assembling graphene sheets mediated polyoxometalate nanoparticles. Owing to the strong interaction between and polyoxometalate, 2D with honeycomb‐latticed carbon atoms could assemble into a porous structure, in which 3D nanoparticles serve as crosslinkers. Nitrogen hydrogen sorption analysis reveal that as‐prepared hybrid possesses specific surface area 680 m 2 g −1 uptake volume 0.8−1.3 wt%. Infrared spectrometry used...
A hierarchically structured thermal-reduced graphene (ReG) foam with 0.5 S cm−1 electrical conductivity is fabricated from a well-dispersed oxide suspension via directional freezing method followed by high-temperature thermal treatment. The as-prepared three-dimensional ReG has an ordered macroporous honeycomb-like structure straight and parallel voids in the range of 30 μm to 75 separated cell walls several tens nanometers thick. Despite its ultra-low density, excellent compression recovery...
We report a facile and scalable method for the preparation of carbon-based porous material through steam activation graphene aerogel (GA). The morphology attributes activated (SAGA) have been well investigated by scanning electron microscopy, transmission nitrogen adsorption–desorption experiments. structure chemical composition obtained SAGA disclosed X-ray diffraction, photoelectron spectroscopy, Raman spectroscopy. as-prepared exhibits high Brunauer–Emmett–Teller specific surface area...
Tetraphenylethylene-based porous organic polymers were synthesized efficiently through a Suzuki coupling polycondensation or oxidative polymerization. According to the obtained nitrogen physisorption isotherms, Brunauer–Emmett–Teller specific surface area values for these materials vary between 472 and 810 m2 g−1. Using same linker monomer, of copolymer (TPOP-3 TPOP-5) prepared by two different core structural monomers (tetraphenylethylene spirobifluorene) is higher than those respective...
Facile preparation of microporous conjugated polycarbazoles via carbazole-based oxidative coupling polymerization is reported. The process to form the polymer network has cost-effective advantages such as using a cheap catalyst, mild reaction conditions, and requiring single monomer. Because no other functional groups halo groups, boric acid, alkyne are required for polymerization, properties derived from monomers likely be fully retained structures final polymers easier characterize. A...
Grafting of glucosamine hydrochloride moieties to tetraphenylethylene (TPE) motif furnished a novel cationic water-soluble derivative (GH-TPE). With aggregation-induced emission properties, GH-TPE was used for fluorometric detection alkaline phosphatase through enzyme-triggered de-aggregation the ensemble and substrate.