A5067286202- Covalent Organic Framework Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Photocatalysis Techniques
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Luminescence and Fluorescent Materials
- Molecular Junctions and Nanostructures
- Advanced battery technologies research
- Graphene research and applications
- Advanced Sensor and Energy Harvesting Materials
- Fuel Cells and Related Materials
- Force Microscopy Techniques and Applications
- Conducting polymers and applications
- 2D Materials and Applications
- Dendrimers and Hyperbranched Polymers
- Advancements in Battery Materials
- Catalytic Processes in Materials Science
- Advanced Materials and Mechanics
- Advanced Battery Technologies Research
- Gas Sensing Nanomaterials and Sensors
- Advanced Battery Materials and Technologies
- Electrochemical Analysis and Applications
- Polymer Surface Interaction Studies
- Nanofabrication and Lithography Techniques
- Surface Chemistry and Catalysis
Hubei University
2024-2025
North University of China
2025
Ji Hua Laboratory
2022-2024
Sun Yat-sen University
2017-2024
Guangdong University of Technology
2023-2024
Yunnan University
2022-2024
Second People's Hospital of Yunnan Province
2024
Wuhan University of Technology
1994-2020
Zhengzhou University
2019-2020
Technische Universität Dresden
2015-2019
The rational construction of covalent or noncovalent organic two-dimensional nanosheets is a fascinating target because their promising applications in electronics, membrane technology, catalysis, sensing, and energy technologies. Herein, large-area (square millimeters) free-standing 2D supramolecular polymer (2DSP) single-layer sheet (0.7-0.9 nm thickness), comprising triphenylene-fused nickel bis(dithiolene) complexes has been readily prepared by using the Langmuir-Blodgett method. Such...
Abstract One of the key challenges in two-dimensional (2D) materials is to go beyond graphene, a prototype 2D polymer (2DP), and synthesize its organic analogues with structural control at atomic- or molecular-level. Here we show successful preparation porphyrin-containing monolayer multilayer 2DPs through Schiff-base polycondensation reaction an air–water liquid–liquid interface, respectively. Both have crystalline structures as indicated by selected area electron diffraction. The 2DP has...
Sheets and rational synthesis are not like fire water! Hexafunctional terpyridine monomers can be laterally connected by metal salts to result in a mechanically stable, sheetlike entity that transferred from the air/water interface solid substrate (see folded, ca. 1.4 nm thin film) spanned over micrometer-sized holes. This is considered an important step on way 2D polymers. Detailed facts of importance specialist readers published as "Supporting Information". Such documents peer-reviewed,...
Best of both worlds: PtxPdy, Pt, and Pd aerogels with high surface area porosity can be synthesized in a controlled fashion by straightforward environmentally benign strategy. These materials, which are highly active stable catalysts for the oxygen reduction reaction PEFC cathodes, combine stability extended surfaces nanoparticles.
Carbon electrocatalysts consisting of metal complexes such as MNx or MSx are promising alternatives to high-cost Pt catalysts for the hydrogen evolution reaction (HER). However, exact HER active sites remain elusive. Here, molecular dithiolene-diamine (MS2 N2 , M=Co and Ni), bis(dithiolene) (MS4 ), bis(diamine) (MN4 ) were selectively incorporated into carbon-rich 2D metal-organic frameworks (2D MOFs) model carbon electrocatalysts. The MOF single layers, powders, composites with graphene...
Abstract Low‐cost, non‐noble‐metal electrocatalysts are required for direct methanol fuel cells, but their development has been hindered by limited activity, high onset potential, low conductivity, and poor durability. A surface electronic structure tuning strategy is presented, which involves doping of a foreign oxophilic post‐transition metal onto transition aerogels to achieve aerogel Ni 97 Bi 3 with unprecedented electrocatalytic activity durability in oxidation. Trace amounts atomically...
Microporous membranes act as selective barriers and play an important role in industrial gas separation water purification. The permeability of such is inversely proportional to their thickness. Synthetic two-dimensional materials (2DMs), with a thickness one few atoms or monomer units are ideal candidates for developing membranes. Here, groundbreaking advances the design, synthesis, processing, application 2DMs ion separations, well desalination presented. This report describes syntheses,...
Exploration of high-performance cathode materials for rechargeable aqueous Zn ion batteries (ZIBs) is highly desirable. The potential molybdenum trioxide (MoO
Conductive polymers showing stretchable and transparent properties have received extensive attention due to their enormous potential in flexible electronic devices. Here, we demonstrate a facile smart strategy for the preparation of structurally stretchable, electrically conductive, optically semitransparent polyaniline-containing hybrid hydrogel networks as electrode, which show high-performances supercapacitor application. Remarkably, stability can extend up 35 000 cycles at high current...
Abstract Engineering conducting polymer thin films with morphological homogeneity and long-range molecular ordering is intriguing to achieve high-performance organic electronics. Polyaniline (PANI) has attracted considerable interest due its appealing electrical conductivity diverse chemistry. However, the synthesis of large-area PANI film control crystallinity thickness remain challenging because complex intermolecular interactions aniline oligomers. Here we report a facile route combining...
Despite the recent progress in synthesis of crystalline boronate ester covalent organic frameworks (BECOFs) powder and thin-film through solvothermal method on-solid-surface synthesis, respectively, their applications electronics, remain less explored due to challenges processability device integration associated with control film thickness, layer orientation, stability crystallinity. Moreover, although domain sizes samples can reach micrometer scale (up ≈1.5 μm), reported have so far rather...
Abstract Insufficient catalytic activity and stability high cost are the barriers for Pt‐based electrocatalysts in wide practical applications. Herein, a hierarchically porous PtNi nanoframe/N‐doped graphene aerogel (PtNiNF‐NGA) electrocatalyst with outstanding performance toward methanol oxidation reaction (MOR) acid electrolyte has been developed via facile tert‐butanol‐assisted structure reconfiguration. The ensemble of high‐alloying‐degree‐modulated electronic correspondingly optimum MOR...
Developing extra safety encryption technologies to prevent information leakage and combat fakes is in high demand but challenging. Herein, we propose a "double lock" strategy based on both lower critical solution temperature (LCST) upper (UCST) polymer hydrogels for camouflage multilevel encryption. Two types of were synthesized by the method random copolymerization. The number -CO-NH2 groups network structure changed enthalpic or entropic thermo-responsive hydrogels, ultimately precisely...
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...
Abstract Developing efficient and stable Pt‐based oxygen reduction reaction (ORR) electrocatalysts via both economical controllable routes is critical for the practical application of electrochemical energy devices. Herein, a scalable, controllable, general ambient‐O 2 ‐involved aqueous‐solution cultivating strategy to prepare Pt x M y (M = Ni, Fe, Co) bunched‐nanocages aerogels (BNCs AG) demonstrated, based on newly established high‐M‐to‐Pt‐precursor‐ratio‐and‐B‐incorporation‐facilitated...
Abstract As counterfeit techniques continue to evolve, ensuring the security of conventional “static” encryption methods becomes increasingly challenging. Here, viscoelasticity‐controlled relaxation is introduced for first time in a bilayer wrinkling system by regulating density hydrogen bond networks polymer construct “dynamic” material. The surface can manipulate light during dynamic process, exhibiting three stages with frosted glass, structural color, and mirror reflection. By...
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...
Covalent monolayer sheets in 2 hours: spreading of threefold anthracene-equipped shape-persistent and amphiphilic monomers at the air/water interface followed by a short photochemical treatment provides access to infinitely sized, strictly monolayered, covalent with in-plane elastic modulus range 19 N/m. As service our authors readers, this journal supporting information supplied authors. Such materials are peer reviewed may be re-organized for online delivery, but not copy-edited or...
The engineering of acetylenic carbon-rich nanostructures has great potential in many applications, such as nanoelectronics, chemical sensors, energy storage, and conversion, etc. Here we show the synthesis nanofibers via copper-surface-mediated Glaser polycondensation 1,3,5-triethynylbenzene on a variety conducting (e.g., copper, graphite, fluorine-doped tin oxide, titanium) non-conducting Kapton, glass, silicon dioxide) substrates. obtained (with optical bandgap 2.51 eV) exhibit...
Abstract Single‐layer and multi‐layer 2D polyimine films have been achieved through interfacial synthesis methods. However, it remains a great challenge to achieve the maximum degree of crystallinity in polyimines, which largely limits long‐range transport properties. Here we employ surfactant‐monolayer‐assisted (SMAIS) method for successful preparation porphyrin triazine containing polyimine‐based polymer (PI‐2DP) with square hexagonal lattices, respectively. The synthetic PI‐2DP are...
Monolayer sheets have gained attention due to the unique properties derived from their two-dimensional structure. One of key challenges in sheet modification/synthesis is exchange integral parts while keeping them intact. We describe site-to-site transmetalation Zn2+ netpoints cm2-sized, metal–organic by Fe2+, Co2+, and Pb2+. This novel transformation was done both randomly at predetermined patterns defined photolithography create monolayer composed different netpoints. All transmetalated...