A5101619971- Metal-Organic Frameworks: Synthesis and Applications
- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Perovskite Materials and Applications
- Advanced Battery Materials and Technologies
- Solid-state spectroscopy and crystallography
- Advanced NMR Techniques and Applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Covalent Organic Framework Applications
- Radioactive element chemistry and processing
- Advanced Cellulose Research Studies
- Nanocomposite Films for Food Packaging
- Luminescence and Fluorescent Materials
- Lanthanide and Transition Metal Complexes
- Quantum Dots Synthesis And Properties
- Microgrid Control and Optimization
- Advancements in Battery Materials
- Ammonia Synthesis and Nitrogen Reduction
- Gas Sensing Nanomaterials and Sensors
- Advanced Sensor and Energy Harvesting Materials
- Advanced Photocatalysis Techniques
- Nanocluster Synthesis and Applications
- Hydraulic and Pneumatic Systems
- Layered Double Hydroxides Synthesis and Applications
Soochow University
2016-2025
Analysis and Testing Centre
2023
Shanghai Dianji University
2022
Chinese Academy of Sciences
2013-2021
Guangzhou Institute of Energy Conversion
2010-2021
Suzhou Research Institute
2015-2018
Max Planck Institute for Polymer Research
2012-2016
Max Planck Society
2012-2015
East China Normal University
2010-2012
Shanghai Jiao Tong University
2009
All-inorganic perovskite nanocrystals (NCs) have emerged as a new generation of low-cost semiconducting luminescent system for optoelectronic applications. The room-temperature photoluminescence quantum yields (PLQYs) these NCs in the green and red spectral range approach unity. However, their PLQYs violet are much lower, an insightful understanding such poor performance remains missing. We report general strategy synthesis all-inorganic violet-emitting with near-unity through engineering...
Although comprehensive progress has been made in the area of coordination polymer (CP)/metal–organic framework (MOF)-based proton-conducting materials over past decade, searching for a CP/MOF with stable, intrinsic, high anhydrous proton conductivity that can be directly used as practical electrolyte an intermediate-temperature proton-exchange membrane fuel cell assembly durable power generation remains substantial challenge. Here, we introduce new CP, (NH4)3[Zr(H2/3PO4)3] (ZrP), which...
Lanthanide organic frameworks (Ln-MOFs) have attracted increasing research enthusiasm as photoluminescent materials. However, limited luminescence efficiency stemming from restricted energy transfer the linker to metal center hinders their applications. Herein, a uranyl sensitization approach was proposed boost of Ln-MOFs in distinct heterobimetallic uranyl-europium framework. The record-breaking photoluminescence quantum yield (PLQY, 92.68%) among all reported Eu-MOFs determined benefit...
Luminescent covalent organic frameworks (LCOFs) have emerged as indispensable candidates in various applications due to their greater tunable emitting properties and structural robustness compared small molecule emitters. An unsolved issue this area is developing highly luminescent LCOFs of which the nonradiative quenching pathways were suppressed much possible. Here, a robust aminal-linked COF (DD-COF) possessing perdeuterated light-emitting monomers was designed synthesized. The...
The dependence of the thin film morphology and excited-state dynamics for low-bandgap donor-acceptor copolymer poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b']-dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)] (PCPDTBT) in pristine films blends (1:2) with [6,6]-phenyl-C(61)-butyric acid methyl ester (PCBM) on use solvent additive 1,8-octanedithiol (ODT) is studied by solid-state nuclear magnetic resonance (NMR) spectroscopy broadband visible near-infrared pump-probe transient...
To tilt or not to tilt: The crystal structure for bulk P3HT (phase I) was determined by "multi-technique crystallography", which combines X-ray diffraction, solid-state NMR spectroscopy, and DFT calculations. results showed that this semiconducting polymer crystallizes in the monoclinic space group P21/c with nontilted π-stacks at a distance of 3.9 Å (see picture). Detailed facts importance specialist readers are published as "Supporting Information". Such documents peer-reviewed, but...
Carboxylated cellulose nanocrystals (CNCs-COOH) have attracted great attention for their potential applications in reinforcing polymer materials and surface modification. Herein, we developed a low-cost approach to prepare CNCs-COOH from pulp with high yield at mild reaction conditions (50 °C, 1 wt % sulfuric acid medium) using potassium permanganate (KMnO4) oxalic (OA, H2C2O4) as the oxidizing reducing agents, respectively. The oxidant dosage this strategy is much lower than that...
The synthesis of highly luminescent colloidal CsSnX3 (X = halogen) perovskite nanocrystals (NCs) remains a long-standing challenge due to the lack fundamental understanding how rationally suppress formation structural defects that significantly influence radiative carrier recombination processes. Here, we develop theory-guided, general synthetic concept for NCs. Guided by density functional theory calculations and molecular dynamics simulations, predict that, although there is an opposing...
Defects in metal-organic frameworks (MOFs) can significantly change their local microstructures, thus notably leading to an alteration-induced performance sorption or catalysis. However, achieving de novo defect engineering MOFs under ambient conditions without the scarification of crystallinity remains a challenge. Herein, we successfully synthesize defective ZIF-7 through 60Co gamma ray radiation conditions. The obtained is defect-rich but also has excellent crystallinity, enhanced BET...
Although interlocked three-dimensional molecules display unique properties associated with their spatial structures, synthesis and study of host-guest remain challenging. We report the formation a novel [2]catenane, [Et4N]@[(Tp*WS3Cu3Cl)2(cis-bpype)3]2(OTf)5 ([Et4N][1](OTf)5), by self-assembly cluster node [Tp*WS3Cu3Cl]+ organic linker (Z)-1,2-diphenyl-1,2-bis(4-(pyridin-4-yl)phenyl)ethene (cis-bpype). Single-crystal X-ray NMR analyses established that [1]4+ is formed interpenetration two...
Molecular modeling shows that longitudinal displacement of the backbones by a couple ångströms has profound impact on electronic coupling mediating charge transport in conjugated copolymer. These changes can be probed monitoring calculated X-ray scattering patterns and NMR chemical shifts as function sliding polymer chains comparing them to experiment.
Ternary resistive random access memory (RRAM) devices are fabricated from 1D d‐π conjugated coordination polymer chains, which synthesized via the between Ni(II) salts and benzenetetramine or 3,3′,4,4′‐biphenyltetramine in a solution process. The as‐fabricated can retain their states for as long three months at room temperature work least 10 000 s 150 °C, is highest working reported ternary RRAM time of writing this paper. Thermogravimetric analysis indicates good thermal stability these two...
Open AccessCCS ChemistryCOMMUNICATION1 Jun 2019Persistent Superprotonic Conductivity in the Order of 10−1 S·cm−1 Achieved Through Thermally Induced Structural Transformation a Uranyl Coordination Polymer Daxiang Gui, Wanchun Duan, Jie Shu, Fuwan Zhai, Ning Wang, Xiangxiang Jian Xie, Hui Li, Lanhua Chen, Juan Diwu, Zhifang Chai and Shuao Wang* Gui State Key Laboratory Radiation Medicine Protection, School for Radiological Interdisciplinary Sciences (RAD-X) Collaborative Innovation Center...
Abstract A facile and general strategy is presented to create well‐defined heterojunctions with ultra‐small multimetallic sulfide nanoparticles (MMSNPs) uniformly coated on sliver nanowires. unique aspect of this method the atomic‐level pre‐integration components by exploiting recently developed supertetrahedral metal nanoclusters. The use such nanoclusters also enables convenient formation ultrathin interfacial Ag 2 S layer via etching. (denoted as MMSNPs/Ag S/Ag‐NWs) benefit from...
Abstract Luminescent covalent organic frameworks (COFs) find promising applications in chemical sensing, photocatalysis, and optoelectronic devices, however, the majority of COFs are non or weakly emissive owing to aggregation‐caused quenching (ACQ) molecular thermal motion‐based energy dissipation. Here, we report a previously unperceived approach improve luminescence performance by introducing isotope effect, which is achieved through substitution hydrogen from high‐frequency oscillators...
A dual hydrogen bonding-inspired polysquaramide sensor is able to detect ammonia as low 10 ppt, the lowest among all sensors date, and sense nitric oxide 20 ppb. The has outstanding robustness regarding selectivity, time-stability (>240 days), superior other benchmarked organic electric sensors.
Abstract Zeolites are a well‐known family of microporous aluminosilicate crystals with wide range applications. Their industrial synthetic method under hydrothermal condition requires elevated temperature and long crystallization time is therefore quite energy‐consuming. Herein, we utilize high‐energy electron beam irradiation generated by an accelerator as distinct type energy source to activate the formation reaction Na‐A zeolite. The initial efforts afford attractive process that can be...
There has been intense interest in understanding the self-assembled structure of conductive polymer nanowires due to potential application photovoltaics area. In present study, free-standing poly(3-hexylthiophene) (P3HT) thin films consisting H-aggregated and recently reported J-aggregated (NWs) were respectively prepared by vacuum filtration method. The microstructure differences both samples studied detail combining multiple techniques, i.e., synchrotron radiation WAXD, solid-state NMR, IR...
A uranyl-europium heterobimetallic compound, (TEA)3[(UO2)6Eu(H2O)4(PPA)6] (H3PPA = phosphonoacetic acid, TEA tetraethylammonium cation), was synthesized under mild hydrothermal conditions. The emission spectrum contains characteristic electronic transition features of both Eu3+ and UO22+, while the peak intensity is notably higher than that UO22+. This primarily attributed to energy transfer from uranyl europium in structure. Significantly, a positive correlation between at 621 nm D2O...
The surface functionalization of cellulose nanocrystals (CNCs) is significant importance for promoting its diverse applications. However, the efficient strategy reported so far cation CNCs remains limited owing to electrostatic attraction between cationic modifiers and electronegative CNCs. Herein, a cationized CNC (CNC-LA-IL) has been successfully prepared in aqueous media by grafting [VBIm][BF4], kind ionic liquid (IL), on sulfated using lactic acid (LA) as linker molecule. This not only...