ORCID Profile
0000-0002-6450-6268
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Publisher: American Chemical Society (ACS)
Date: 20-12-2018
DOI: 10.1021/JACS.8B09945
Abstract: The synthesis of graphdiyne with an ordered internal structure is highly attractive for its various scientific and application investigations. We reported herein a rational method to fabricate a graphdiyne analogue with the help of supramolecular chemistry. The introduction of π-π/CH-π interactions controlled the conformations of the precursors and afforded multilayer graphdiyne analogue Ben-GDY through the wet chemical method. The in-plane periodicity of the multilayer Ben-GDY was corroborated by transmission electron microscopy and selected area electron diffraction, which showed a pattern well matched with ABC-style stacking.
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2SC03952D
Abstract: Taking advantage of high penetration and reduced light scattering of NIR wavelengths, we demonstrate the syntheses of polymeric nanoparticles with consistent morphologies through thick barriers.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CC01834A
Abstract: The charge transfer from the donor to the acceptor units results in a CT complex with excellent near-infrared photothermal conversion efficiency, which acted as an excellent photothermal material in seawater desalination application.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9CC09617E
Abstract: A well-defined crystalline cyano-functionalized graphdiyne (CN-GDY) is synthesized at a liquid/liquid interface through alkyne–alkyne coupling reactions.
Publisher: American Chemical Society (ACS)
Date: 12-03-2020
DOI: 10.1021/JACS.0C00923
Publisher: Springer Science and Business Media LLC
Date: 20-01-2021
DOI: 10.1038/S41467-020-20640-Z
Abstract: Photomediated-reversible-deactivation radical polymerisation (photo-RDRP) has a limited scope of available photocatalysts (PCs) due to multiple stringent requirements for PC properties, limiting options for performing efficient polymerisations under long wavelengths. Here we report an oxygen-mediated reductive quenching pathway (O-RQP) for photoinduced electron transfer reversible addition-fragmentation chain transfer (PET-RAFT) polymerisation. The highly efficient polymerisations that are performed in the presence of ambient air enable an expanded scope of available PCs covering a much-broadened absorption spectrum, where the oxygen tolerance of PET-RAFT allows high-quality polymerisation by preventing the existence of O 2 in large amounts and efficient O-RQP is permitted due to its requirement for only catalytic amounts of O 2 . Initially, four different porphyrin dyes are investigated for their ability to catalyse PET-RAFT polymerisation via an oxidative quenching pathway (OQP), reductive quenching pathway (RQP) and O-RQP. Thermodynamic studies with the aid of (time-dependent) density functional theory calculations in combination with experimental studies, enable the identification of the thermodynamic constraints within the OQP, RQP and O-RQP frameworks. This knowledge enables the identification of four phthalocyanine photocatalysts, that were previously thought to be inert for PET-RAFT, to be successfully used for photopolymerisations via O-RQP. Well-controlled polymerisations displaying excellent livingness are performed at wavelengths in the red to near-infrared regions. The existence of this third pathway O-RQP provides an attractive pathway to further expand the scope of photocatalysts compatible with the PET-RAFT process and facile access to photopolymerisations under long wavelengths.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9QM00243J
Abstract: Formation of fluorescent two-dimensional supramolecular structure based on tetraphenylethene (TPE) derivative and CB[8].
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1PY01258D
Abstract: We report a high throughput approach for the screening of RAFT agents and photocatalysts to mediate photoinduced electron/energy transfer-reversible addition–fragmentation chain transfer (PET-RAFT) polymerization.
Publisher: American Chemical Society (ACS)
Date: 12-11-2019
Abstract: A sulfur-rich graphdiyne (TTF-GDY) material containing electrochemically active unit of tetrathiafulvalene was successfully synthesized at the liquid/liquid interface under mild conditions. The extended two-dimensional (2D) π-conjugated framework contains large in-plane cavities to accommodate defined sulfur elements and precise sulfur content. Transmission electron microscopy (TEM), scanning electron microscopy (SEM), and atomic force microscopy (AFM) characterizations demonstrated that the TTF-GDY adopted the layered structures. X-ray photoelectron spectroscopy (XPS), Raman spectrum, selected area electron diffraction (SAED), crystal modeling, and molecular-mechanics-based calculation further confirmed the proposed framework structure and the expected chemical compositions. Considering the unique structure and sulfur-rich characteristic, we then applied this material as an electrode in lithium battery applications. Due to the unique 2D framework structure, the TTF-GDY exhibited a high specific capacity of 837.6 mAh/g, particularly having a robust long-term stability under the high current density. These results demonstrated that such a sulfur-rich TTF-GDY, as a novel electrochemical material would have great application potential in energy fields.
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7CC07663K
Abstract: This work demonstrates use of spinach extracts for living radical polymerization bypassing catalyst synthesis urification, degassing and catalyst removal procedures.
Publisher: American Chemical Society (ACS)
Date: 21-02-1970
DOI: 10.1021/JACS.8B06291
Abstract: Highly conjugated three-dimensional covalent organic frameworks (3D COFs) were constructed based on spirobifluorene cores linked via imine bonds (SP-3D-COFs) with novel interlacing conjugation systems. The crystalline structures were confirmed by powder X-ray diffraction and detailed structural simulation. A 6- or 7-fold interpenetration was formed depending on the structure of the linking units. The obtained SP-3D-COFs showed permanent porosity and high thermal stability. In application for solar cells, simple bulk doping of SP-3D-COFs to the perovskite solar cells (PSCs) substantially improved the average power conversion efficiency by 15.9% for SP-3D-COF 1 and 18.0% for SP-3D-COF 2 as compared to the reference undoped PSC, while offering excellent leakage prevention in the meantime. By aid of both experimental and computational studies, a possible photoresponsive perovskite-SP-3D-COFs interaction mechanism was proposed to explain the improvement of PSC performance after SP-3D-COFs doping.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9CC07040K
Abstract: A series of sulfide and sulfone substituted perylene diimides (PDIs) with different LUMO levels covering a range of 0.72 eV were synthesized through simple sulfur redox chemistry.
Publisher: American Chemical Society (ACS)
Date: 20-12-2018
Publisher: American Chemical Society (ACS)
Date: 17-09-2018
Publisher: American Chemical Society (ACS)
Date: 22-04-2019
DOI: 10.1021/JACS.9B01096
Abstract: In this work, we adopted a fully computer-guided strategy in discovering an efficient pH-switchable organic photocatalyst (OPC), unprecedentedly turning colorless at pH 5 and recovering strong visible-light absorption and photoactivity at pH 7. This is the first ex le of an OPC design fully guided by comprehensive density functional theory (DFT) studies covering electrostatic, electrochemical, and photophysical predictions. Characterization of the designed OPC after synthesis confirmed the computational predictions. We applied this OPC to mediate an aqueous photoinduced electron/energy transfer-reversible addition-fragmentation chain transfer (PET-RAFT) polymerization under green LED light (nominal emission wavelength: 530 nm, 5 mW/cm
Publisher: American Chemical Society (ACS)
Date: 04-01-2022
DOI: 10.1021/ACS.CHEMREV.1C00409
Abstract: Over the past decade, the use of photocatalysts (PCs) in controlled polymerization has brought new opportunities in sophisticated macromolecular synthesis. However, the selection of PCs in these systems has been typically based on laborious trial-and-error strategies. To tackle this limitation, computer-guided rational design of PCs based on knowledge of structure-property-performance relationships has emerged. These rational strategies provide rapid and economic methodologies for tuning the performance and functionality of a polymerization system, thus providing further opportunities for polymer science. This review provides an overview of PCs employed in photocontrolled polymerization systems and summarizes their progression from early systems to the current state-of-the-art. Background theories on electronic transitions are also introduced to establish the structure-property-performance relationships from a perspective of quantum chemistry. Typical ex les for each type of structure-property relationships are then presented to enlighten future design of PCs for photocontrolled polymerization.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0NH00287A
Abstract: Crystalline fluorographdiyne (cFGDY) is synthesized for ammonia production from nitrogen and water at ambient conditions with 100% selectivity and high-activity.
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C8QI01196F
Abstract: Ultrathin two-dimensional 2PbCO 3 ·Pb(OH) 2 nanosheets have been facilely synthesized at the gas/liquid interface and exhibit higher catalytic activity as peroxidase mimetic for the oxidation of TMB.
Publisher: American Chemical Society (ACS)
Date: 07-04-2022
DOI: 10.1021/ACS.JPCLETT.2C00830
Abstract: Catalyst-free photocontrolled reversible addition-fragmentation chain transfer (RAFT) polymerization avoids the side effects of photocatalysts but has the accompanying slow kinetics, thereby warranting more efficient photolysis and faster chain transfer. To understand the underlying mechanisms, both quantitative and qualitative interpretations are needed. Such a goal can be achieved by the iCAS (imposed automatic selection and localization of complete active spaces) approach [
No related grants have been discovered for Chenyu Wu.