A5000014149- Surface Chemistry and Catalysis
- Molecular Junctions and Nanostructures
- Covalent Organic Framework Applications
- Graphene research and applications
- Porphyrin and Phthalocyanine Chemistry
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Surface and Thin Film Phenomena
- Luminescence and Fluorescent Materials
- Spectroscopy and Quantum Chemical Studies
- Conducting polymers and applications
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Memory and Neural Computing
- Block Copolymer Self-Assembly
- Supramolecular Self-Assembly in Materials
- Advanced Photocatalysis Techniques
- Force Microscopy Techniques and Applications
- Organic Electronics and Photovoltaics
- Mesoporous Materials and Catalysis
- Perovskite Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
- Synthesis and Properties of Aromatic Compounds
- Supramolecular Chemistry and Complexes
- 2D Materials and Applications
- Analytical Chemistry and Sensors
Tianjin University
2016-2025
Collaborative Innovation Center of Chemical Science and Engineering Tianjin
2016-2025
Lanzhou Jiaotong University
2023-2025
Xi'an Chest Hospital
2025
Second Affiliated Hospital of Soochow University
2024-2025
Soochow University
2024-2025
Unité Matériaux et Transformations
2022
National University of Singapore
2022
Nanjing University of Aeronautics and Astronautics
2019-2020
First Affiliated Hospital of Anhui Medical University
2020
The invention of the scanning tunneling microscope has led to visualization molecules in real space on atomically flat conductive substrates. This boosted research into supramolecular chemistry surfaces. In this Review, we highlight recent developments design and functionality surface patterns, with special attention paid those networks which are chiral or contain a high degree porosity as well reactivity, is one most important chemistry.
New tool for surface modification: The 2D pattern formed by physisorbed dehydrobenzoannulene molecules on a graphite depends their concentration in solution. dependence is directly related to the difference stability between linear and honeycomb polymorphs respective molecular densities (see picture). Supporting information this article available WWW under http://www.wiley-vch.de/contents/jc_2002/2008/z705322_s.pdf or from author. Please note: publisher not responsible content functionality...
Graphene is very popular in recent years, due to its unique electrical, thermal, mechanical, optical and electrochemical properties. With these useful advantages, graphene has been used as a substance incorporate various kinds of functional materials. Among them, graphene-based polyaniline (PANI) nanocomposites have attracted great deal interest their new properties or enhanced performance during the past few years. This because PANI conducting polymer that widely for electronic,...
Organic field-effect transistors and near-infrared (NIR) organic phototransistors (OPTs) have attracted world's attention in many fields the past decades. In general, sensitivity, distinguishing signal from noise, is key parameter to evaluate performance of NIR OPTs, which decided by responsivity dark current. 2D single crystal films semiconductors (2DCOS) are promising functional materials due their long-range order spite only few molecular layers. Herein, for first time, air-stable 2DCOS...
Here, the synthesis of a wafer-scale ultrathin 2D imine polymer (2DP) film with controllable thickness from simple benzene-1,3,5-tricarbaldehyde (BTA) and p-phenylenediamine (PDA) building blocks is reported using Schiff base polycondensation reaction at air-water interface. The synthesized freestanding 2DP films are porous, insulating, more importantly, covalently linked, which ideally suited for nonvolatile memristors that use conductive filament mechanism. These devices exhibit excellent...
We performed a co-condensation reaction between aromatic aldehyde and diamine monomers on highly oriented pyrolytic graphite surface either at solid/liquid interface room temperature or in low vacuum with moderate heating. With this simple methodology, we have obtained surface-confined 2D covalent organic frameworks (COFs) few defects almost entire coverage. The single crystalline domain can extend to more than 1 μm(2). By varying the backbone length of diamines pore size COFs is tunable...
At the liquid/graphite interface triangular and rhombic phenylene–ethynylene macrocycles substituted by alkyl chains self-assemble to form porous two-dimensional (2D) molecular networks of honeycomb Kagomé types, respectively, or close-packed non-porous structures via chain interdigitation as directional intermolecular linkages. Factors that affect formation 2D networks, such length, solvent, solute concentration, co-adsorption guest molecules, were elucidated through a systematic study. For...
Get it together: A four-component 2D crystal has been formed at a liquid–solid interface and successfully visualized by scanning tunneling microscopy. Simply premixing the four components applying solution onto graphite surface leads to spontaneous self-assembly of crystal. Selected guest molecules induce structural transformation host network from nonporous porous coadsorption inside pores. Detailed facts importance specialist readers are published as "Supporting Information". Such...
The integration of 2D covalent organic frameworks (COFs) with atomic thickness graphene will lead to intriguing two-dimensional materials. A surface-confined covalently bonded Schiff base network was prepared on single-layer grown copper foil and the dynamic reaction process investigated scanning tunneling microscopy. DFT simulations provide an understanding electronic structures interactions between surface COF graphene. Strong coupling confirmed by dispersive bands after interaction...
Two-dimensional molecular crystals (2DMCs) are a promising candidate for flexible and large-area electronics. Their production requires both low nuclei density 2D crystal growth mode. As an emerging type of material, their remains case-by-case practice. Here we present general, efficient strategy 2DMCs. The method grows on water surface to minimize the nuclei. By controlling interfacial tension water/solution system with phase transfer surfactant, spreading area solvent increases tens times,...
The self-assembly of a series hexadehydrotribenzo[12]annulene (DBA) derivatives has been investigated by scanning tunneling microscopy (STM) at the liquid/solid interface in absence and presence nanographene guests. In appropriate guest molecules, DBA with short alkoxy chains form two-dimensional (2D) porous honeycomb type patterns, whereas those long predominantly dense-packed linear patterns. Added molecules adsorb pores existing 2D patterns or, more interestingly, they even convert...
Recognition and selection are of fundamental importance for the hierarchical assembly supramolecular systems. Coronene induces formation a hydrogen-bonded isophthalic acid macrocycle, this well-defined heterocluster forces, in its turn, DBA1 to form van der Waals stabilized honeycomb lattice, leading three-component 2D crystal containing nine molecules unit cell. The recognition events enable efficient error correction healing redundant mixtures.
Abstract A portable litmus‐type chemosensor is developed for the effective detection of environmentally hazardous volatile organic compounds (VOCs) using polydiacetylene (PDA) and graphene stacked within a composite film. The exploited as transparent efficient supporter highly ordered PDA monolayer. This colorimetric sensor exhibits sensitive response to low concentrations VOCs (∼0.01%), including tetrahydrofuran (THF), chloroform (CHCl 3 ), methanol (CH OH), dimethylformamide (DMF). color...
To harness the electroactivity of anthraquinone as an electrode material, a great recent effort have been invested to composite with carbon materials improve conductivity. Here we report on noncovalent way modify three-dimensional graphene moieties through on-surface synthesis two-dimensional covalent organic frameworks. We incorporate 2,6-diamino-anthraquinone into COF Schiff-base reaction benzene-1,3,5-tricarbaldehyde. The synthesized -graphene exhibits large specific capacitance 31.7...
Carbon quantum dots (CQDs) have developed into prospective nanomaterials for next-generation lighting and displays due to their intrinsic advantages of high stability, low cost, environmental friendliness. However, confined by the spin-forbidden nature triplet state transitions, highest theoretical value external efficiency (EQE) fluorescent CQDs is merely 5%, which fundamentally limits further application in electroluminescent light-emitting diodes (LEDs). Soluble phosphorescent offer a...
Abstract Electrocatalytic reduction of CO 2 (CO RR) to high‐energy‐density C 3 fuels like n ‐propanol has been widely recognized as one the core technologies for both renewable energy storage and carbon neutrality. Unfortunately, exceptional catalytic sites that are able simultaneously implement efficient conversion 1 products difficult design single electrolyzers, leading poor activity selectivity toward ‐propanol. Alternatively, electroreduction (CORR) shown good performance fuels, but...
The topology type and the functionalization of pores play an important role in regulating performance covalent organic frameworks. Herein, we designed synthesized framework with hetero-environmental using predesigned asymmetrical dialdehyde monomer. According to results structural characterization, crystallinity investigation, theoretical calculation, obtained are regarded as alternant arrangement. distinctive hetero pore structure leads material show more advantages compared control...