A5017722217- Advanced Photocatalysis Techniques
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Catalytic Processes in Materials Science
- Perovskite Materials and Applications
- TiO2 Photocatalysis and Solar Cells
- Advanced Chemical Physics Studies
- Catalysis and Oxidation Reactions
- Quantum Dots Synthesis And Properties
- Catalysts for Methane Reforming
- Electrocatalysts for Energy Conversion
- Ammonia Synthesis and Nitrogen Reduction
- Semiconductor materials and interfaces
- Spectroscopy and Laser Applications
- CO2 Reduction Techniques and Catalysts
- Particle Accelerators and Free-Electron Lasers
- Spectroscopy and Quantum Chemical Studies
- Superconducting Materials and Applications
- Porphyrin and Phthalocyanine Chemistry
- Molecular Junctions and Nanostructures
- Organic Light-Emitting Diodes Research
- Gas Sensing Nanomaterials and Sensors
- Caching and Content Delivery
- Metal-Organic Frameworks: Synthesis and Applications
- Atomic and Molecular Physics
Zhengzhou University
2016-2025
China Agricultural University
2025
Chinese Academy of Sciences
2014-2024
Suzhou Institute of Nano-tech and Nano-bionics
2024
Henan Normal University
2024
Institute of High Performance Computing
2024
Agency for Science, Technology and Research
2024
Soochow University
2019-2024
Southern University of Science and Technology
2019-2023
Technical Institute of Physics and Chemistry
2016-2023
We have investigated the photocatalysis of partially deuterated methanol (CD(3)OH) and H(2)O on TiO(2)(110) at 400 nm using a newly developed apparatus in combination with theoretical calculations. Photocatalyzed products, CD(2)O Ti(5c) sites, H D atoms bridge-bonded oxygen (BBO) sites from CD(3)OH been clearly detected, while no evidence was found. The experimental results show that dissociation occurs stepwise manner which O-H proceeds first is then followed by C-D dissociation....
This review provides a detailed overview of PM6:Y6-based organic solar cells (OSCs), including the underlying mechanisms, terpolymers derived from PM6, ternary or quaternary OSCs, interfacial engineering and electrode progress.
The electroreduction of nitrate (NO3- ) pollutants to ammonia (NH3 offers an alternative approach for both wastewater treatment and NH3 synthesis. Numerous electrocatalysts have been reported the NO3- , but most them demonstrate poor performance at ultralow concentrations. In this study, a Cu-based catalyst concentrations is developed by encapsulating Cu nanoparticles in porous carbon framework (Cu@C). At -0.3 V vs reversible hydrogen electrode (RHE), Cu@C achieves Faradaic efficiency 72.0%...
Abstract Symmetric conjugated molecules can be broken through suitable synthetic strategies to construct novel asymmetric molecules, which largely broaden the material library. In field of organic solar cells, fused‐ring electron acceptors (FREAs) with A‐DA'D‐A type backbone structure have attracted much attention and enabled power conversion efficiencies (PCE) exceeding 18%. Among them, Y6 is one most classic FREAs that derive many symmetric exhibit unique optoelectronic properties. Thus,...
A third component featuring a planar backbone structure similar to the binary host molecule has been preferred ingredient for improving photovoltaic performance of ternary organic solar cells (OSCs). In this work, we explored new avenue that introduces 3D-structured molecules as guest acceptors. Spirobifluorene (SF) is chosen core combine with three different terminal-modified (rhodanine, thiazolidinedione, and dicyano-substituted rhodanine) benzotriazole (BTA) units, affording four-arm...
The ground-state charge generation (GSCG) in photoactive layers determines whether the photogenerated carriers occupy deep trap energy levels, which, turn, affects device performance of organic solar cells (OSCs). In this work, charge-quadrupole electrostatic interactions are modulated to achieve GSCG through a molecular strategy introducing different numbers F atom substitutions on BTA3 side chain. results show that 8F substitution (BTA3-8F) and 16F (BTA3-16F) lead patterns highest occupied...
Colloidal quantum dots (QDs) have demonstrated great promise in artificial photosynthesis. However, the ultrasmall size hinders its controllable and effective interaction with cocatalysts. To improve poor interparticle electronic communication between free QD cocatalyst, we design here a self-assembled architecture of nanoparticles, QDs Pt simply jointed together by molecular polyacrylate to greatly enhance rate efficiency interfacial electron transfer (ET). The enhanced is confirmed...
It is well established that adding methanol to water could significantly enhance H2 production by TiO2. Recently, we have found can be photocatalytically dissociated on TiO2(110) at 400 nm via a stepwise mechanism. However, how molecular hydrogen formed from the photocatalyzed methanol/TiO2(110) surface still not clear. In this work, investigated deuterium formation photocatalysis of fully deuterated (CD3OD) using temperature programmed desorption (TPD) technique. Photocatalytic dissociation...
Photocatalysis of methanol (CH3OH) on anatase (A)-TiO2(101) has been investigated using temperature programmed desorption (TPD) method with 266 nm light at low surface temperatures. Experimental results show that CH3OH adsorbs the A-TiO2(101) predominantly in molecular form, only a small amount dissociated form. Photocatalytic products, formaldehyde (CH2O) and methyl formate (HCOOCH3), have detected under irradiation. In addition to H2O formation, H2 product is also observed by TPD...
Previous observations of methyl formate (HCOOCH3) during the photo-oxidation methanol (CH3OH) on TiO2 catalysts suggested that photocatalysis could be used to build up complex molecules from a single precursor. We have investigated mechanism HCOOCH3 formation by irradiating CH3OH-adsorbed TiO2(110) surface with 400 nm light at low temperatures. Through detection volatile products after irradiation temperature programmed desorption, we found, as previously reported [Phillips et al. J. Am....
Transition-metal carbide (TMC), because of its electronic conductivity, chemical stability, and physical properties, has aroused widespread interest in catalysis. Here, we have systematically studied the photocatalytic hydrogen (H2) evolution metallic cobalt (Co2C) by a combination theoretical experimental investigations. In terms intrinsic proton reduction property Co2C (020) facet facile interficial electron transfer, assembled architecture quantum dots (QDs)/Co2C can give rate ∼18 000...
Colloidal quantum dots (QDs) consisting of precious-metal-free elements show attractive potentials towards solar-driven CO2 reduction. However, the inhibition hydrogen (H2 ) production in aqueous solution remains a challenge. Here, we describe first example carbon-carbon (C-C) coupling reaction to block competing H2 evolution photocatalytic reduction water. In specific system taking ZnSe QDs as photocatalysts, introduction furfural can significantly suppress leading CO with rate ≈5.3 mmol...
Abstract A fused naphthodithiophene diimide (NDTI) derivative is first used as cathode interlayer materials (CIMs) in organic solar cells, by introducing two dimethylamine‐functionalized fluorenes on both sides, namely NDTI1 . Meanwhile, non‐fused naphthalene (NDI) derivatives are synthesized the control CIMs to validate design strategy of NDI. All three show high thermal stability, robust adhesion, and strong electrode modification capability. Compared with NDI‐based materials, possesses...
Abstract The catalytic nature of semiconducting quantum dots (QDs) for photocatalytic hydrogen (H 2 ) evolution can be thoroughly aroused, not because coupling with external cocatalysts, but through partially covering controlled amount ZnS shell on the surface. Specifically, CdSe QDs, an optimal coverage (≈46%), produce H gas a constant rate ≈306.3 ± 21.1 µmol mg −1 h during 40 h, thereby giving turnover number ≈(4.4 0.3) × 10 5 , which is ≈110‐fold to that unmodified QDs under identical...
Abstract The prosperous period of polymer solar cells (PSCs) has witnessed great progress in molecule design methods to promote power conversion efficiency (PCE). Designing asymmetric structures been proved effective tuning energy level and morphology, which drawn strong attention from the PSC community. Two hepta‐ring octa‐ring small molecular acceptors (SMAs) (IDTP‐4F IDTTP‐4F) with S‐shape C‐shape confirmations are developed study relationship between conformation shapes efficiencies....
Abstract Understanding the conformation effect on molecular packing, miscibility, and photovoltaic performance is important to open a new avenue for small‐molecule acceptor (SMA) design. Herein, two novel acceptor–(donor‐acceptor1‐donor)–acceptor (A‐DA1D‐A)‐type asymmetric SMAs are developed, namely C‐shaped BDTP‐4F S‐shaped BTDTP‐4F . The ‐based polymer solar cells (PSCs) with PM6 as donor, yields power conversion efficiency (PCE) of 15.24%, significantly higher than that device (13.12%)....
The photochemistry of H 2 O in the VUV region is important interstellar chemistry. Whereas previous studies photodissociation used excitation via unbound states, we have a tunable photolysis source to excite individual levels rotationally structured C̃ state near 124 nm. ensuing OH product distributions were recorded by using H-atom Rydberg tagging technique. Experimental results indicate dramatic variation and its stereodynamics for different resonant states. Photodissociation O( )...
Photocatalytic dissociation of methanol (CH3OH) on a TiO2(110) surface has been studied by temperature programmed desorption (TPD) at 355 and 266 nm. Primary products, CH2O H atoms, have detected. The dependence the reactant product TPD signals irradiation time measured, allowing photocatalytic reaction rate CH3OH both wavelengths to be directly determined. initial nm is nearly 2 orders magnitude faster than that nm, suggesting photocatalysis strongly dependent photon energy. This...