A5101656850- Covalent Organic Framework Applications
- Nanomaterials for catalytic reactions
- Advanced Photocatalysis Techniques
- Catalytic Processes in Materials Science
- Carbon dioxide utilization in catalysis
- Metal-Organic Frameworks: Synthesis and Applications
- Asymmetric Hydrogenation and Catalysis
- High Temperature Alloys and Creep
- Optical measurement and interference techniques
- High-Temperature Coating Behaviors
- Graphene research and applications
- Metal and Thin Film Mechanics
- Advanced ceramic materials synthesis
- Catalysis for Biomass Conversion
- Advanced Materials Characterization Techniques
- CO2 Reduction Techniques and Catalysts
- Electrocatalysts for Energy Conversion
- 2D Materials and Applications
- Nanowire Synthesis and Applications
- ZnO doping and properties
- Mesoporous Materials and Catalysis
- Advanced X-ray Imaging Techniques
- 3D Surveying and Cultural Heritage
- Advanced Electron Microscopy Techniques and Applications
- Carbon Dioxide Capture Technologies
University of Electronic Science and Technology of China
2025
Qingdao University
2025
Beijing Forestry University
2020-2024
State Forestry and Grassland Administration
2021-2024
Northwestern Polytechnical University
2022-2024
China University of Petroleum, Beijing
2024
Beijing Institute of Technology
1988-2023
Shenyang Jianzhu University
2023
Chongqing University
2022-2023
Xiamen University
2020-2022
Abstract The synthesis of hierarchically mesoporous polymers with multiple functionalities is challenging. Herein we reported a template‐free strategy for phenolic azo‐polymers hierarchical porous structures based on diazo‐coupling reaction in aqueous solution under mild conditions. resultant have surface areas up to 593 m 2 g −1 the mesopore ratio >80 %, and good ability complex metal ions, such as Cu 2+ , Zn ,Ni achieving loading 26.24 wt %. Moreover, complexed showed excellent...
Visible-light-driven photoreduction of CO2 to energy-rich chemicals in the presence H2 O without any sacrifice reagent is significance, but challenging. Herein, Eosin Y-functionalized porous polymers (PEosinY-N, N=1-3), with high surface areas up 610 m2 g-1 , are reported. They exhibit activity for photocatalytic reduction CO gaseous O, photosensitizer or reagent, and under visible-light irradiation. Especially, PEosinY-1 derived from coupling Y 1,4-diethynylbenzene shows best performance...
Herein we present a novel and facile approach to controllably load ultrafine noble metal nanoparticles on titania through in situ redox reaction between the reductive titanium(III) oxide support salt precursors aqueous solution. A series of metal/TiO(2) nanocomposites with uniform dispersion, tunable particle size, narrow size distribution were obtained.
Mesoporous nitrogen-doped carbons with high nitrogen content and ultrahigh surface areas were prepared, which showed efficiency for oxidation of alkanes in aqueous phase.
Solar-energy-driven photoreduction of CO2 to hydrocarbon fuels is an interesting and challenging topic, which generally requires photocatalysts with the capability capture photoreduce simultaneously. Herein, we demonstrate that a N,O,P-containing covalent organic polymer (NOP-COP) prepared via condensation hexachlorocyclotriphosphazene barbituric acid can further photocatalyze its reduction CH4 under visible-light irradiation. The characterization information indicates incorporation...
A highly efficient Co-based catalytic system, composed of a commercially available Co salt, tetradentate phosphine ligand P(CH2CH2PPh2)3(PP3), and base (denoted as [Co]/PP3/base), is developed for the methylation C(sp3)–H C(sp2)-H bonds using methanol methylating reagent. The Co(BF4)2·6H2O/PP3/K2CO3 system showed high activity C–H in aryl alkyl ketones, acetonitriles, indoles, with wide substrate scope good functional group tolerance, methyl-substituted products were obtained to excellent...
A Tröger's base-derived microporous organic polymer (TB-MOP) was designed, which could adsorb CO2 and coordinate with a Ru(III) complex. The resultant TB-MOP-Ru showed good H2 adsorbing performances, high efficiency for catalysing hydrogenation of to HCOOH turnover number up 2254 at 40 °C.
The hydration of propargylic alcohols is a green route to synthesize α-hydroxy ketones. Herein CO2-reactive ionic liquid (IL), [Bu4P][Im], was found display high performance for catalyzing the in presence atmospheric CO2, and series could be converted into corresponding ketones good excellent yields. In IL/CO2 reaction system, CO2 served as cocatalyst by forming α-alkylidene cyclic carbonates with alcohols, released via rapid hydrolysis catalysed IL. This first example efficient under...
B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub> was proven to be an efficient metal-free catalyst for the methylation of amines using CO<sub>2</sub> as a C1 building block in presence hydrosilanes under easy-handling conditions.
Asymmetric transport characteristic in n- and p-type conductivity has long been a fundamental difficulty wide bandgap semiconductors. Hexagonal boron nitride (h-BN) can achieve conduction, however, the n-type still remains unavailable. Here, we demonstrate concept of orbital split induced level engineering through sacrificial impurity coupling realization efficient 2D h-BN monolayer. We find that O 2pz both symmetry energy matching to Ge 4pz orbital, which promises strong coupling. The...
In this work, we developed a facile and efficient route to deposit ultrafine Pt particles onto multi-walled carbon nanotubes (MWNTs) with the aid of tip sonication. The loading on MWNTs could attain very high level 50 wt% size be controllably tuned in range 1.9–3.5 nm narrow distributions. resultant nanocomposites were applied catalyze hydrogenation nitrobenzene under solvent-free conditions. It was demonstrated that Pt/MWNT catalysts showed excellent activity turnover frequency (e.g., 69...
Herein we present a simple method to coat porous SiO2 layer on carbon nanotubes (CNTs) with the aid of cationic surfactant cetyltrimethyl ammonium bromide (CTAB). The coating process was studied systematically, and possible mechanism proposed. Temperature ratio CTAB/CNTs/H2O were found play key role in process. This can be applied both multiwalled (MWNTs) single walled (SWNTs). individualized nature CNTs (both MWNTs SWNTs) maintained during Furthermore, Raman spectroscopy showed that this is...
Highly mesoporous carbons (MCs) derived from biomass feedstocks were prepared using a eutectic salt (KCl/ZnCl<sub>2</sub>) as the porogen agent and catalyst through gradient heating program.
Pt-Ru/CeO(2)/multiwalled carbon nanotube (MWNT) electrocatalysts were prepared using a rapid sonication-facilitated deposition method and characterized by X-ray diffraction (XRD), photoemission spectroscopy (XPS), transmission electron microscopy (TEM), energy-dispersive (EDS), voltammetry. Morphological characterization TEM revealed that CeO(2) nanoparticles (NPs) in intimate contact with Pt-Ru NPs, both highly dispersed on the exteriors of nanotubes small size very narrow distribution....
Azo-functionalized microporous organic polymers were synthesized under mild conditions (25 °C, 1 h, yield: >95%), and displayed high CO<sub>2</sub> capacity performances for catalyzing the methylation of amines with low pressure (0.5 MPa).
A task-specific ionic liquid in combination with a pyrene-based conjugated polymer realizes the direct capture of CO<sub>2</sub> and H<sub>2</sub>O from air further conversion to CO under visible-light irradiation.
Abstract The synthesis of hierarchically mesoporous polymers with multiple functionalities is challenging. Herein we reported a template‐free strategy for phenolic azo‐polymers hierarchical porous structures based on diazo‐coupling reaction in aqueous solution under mild conditions. resultant have surface areas up to 593 m 2 g −1 the mesopore ratio >80 %, and good ability complex metal ions, such as Cu 2+ , Zn ,Ni achieving loading 26.24 wt %. Moreover, complexed showed excellent...
Solar-driven reduction of CO2 into renewable carbon forms is considered as an alternative approach to address global warming and the energy crisis but suffers from low efficiency photocatalysts. Herein, a direct Z-Scheme SnS2 /sulfur-bridged covalent triazine frameworks (S-CTFs) photocatalyst (denoted /S-CTFs) was developed, which could efficiently adsorb owing -philic feature S-CTFs promote separation photoinduced electron-hole pairs. Under visible-light irradiation, /S-CTFs exhibited...
Abstract To achieve sustainable heritage conservation, preventive conservation has gradually taken precedence over curative because it can inhibit the damage caused by various environmental factors and maximizes preservation life of artifacts. Due to susceptibility factors, been used in movable wooden artifacts further protect them. Recently, digital twin technology, as a concept that transcends reality, be mapped virtual space reflect full lifecycle process corresponding entity, which is...
A heterogeneous fluoro-functionalized polymeric <italic>N</italic>-heterocyclic carbene-zinc complex (<bold>F-PNHC-Zn</bold>) was designed and prepared for the formylation methylation of <italic>N</italic>-methylanilines using CO<sub>2</sub> as a C1 building block in presence organosilane.
Uniform N-doped carbon nanotubes were obtained for the first time via a morphology-preserving thermal transformation of organic polymer without any additional templates. These acted as superior metal-free catalyst C-H arylation benzene, reductive hydrogen atom transfer and oxidation reactions.