A5019344997- Advanced Photocatalysis Techniques
- Copper-based nanomaterials and applications
- CO2 Reduction Techniques and Catalysts
- Gas Sensing Nanomaterials and Sensors
- Electronic and Structural Properties of Oxides
- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Solar-Powered Water Purification Methods
- Ga2O3 and related materials
- Covalent Organic Framework Applications
- Thermal properties of materials
- Solar Thermal and Photovoltaic Systems
- Analytical Chemistry and Sensors
- Phase Change Materials Research
- Advancements in Solid Oxide Fuel Cells
- Advanced battery technologies research
- Multiferroics and related materials
- Nanofluid Flow and Heat Transfer
- Surface Modification and Superhydrophobicity
- Conducting polymers and applications
- Nanomaterials and Printing Technologies
- TiO2 Photocatalysis and Solar Cells
- 2D Materials and Applications
- Aerosol Filtration and Electrostatic Precipitation
- Nanomaterials for catalytic reactions
Guangdong Academy of Sciences
2019-2023
South China University of Technology
2012-2023
Institute of Group Analysis
2021
Solar Fuels Institute
2017-2019
Helmholtz-Zentrum Berlin für Materialien und Energie
2017-2019
Tongji University
2015
A new strategy of using forward gradient self-doping to improve the charge separation efficiency in metal oxide photoelectrodes is proposed. Gradient self-doped CuBi2O4 photocathodes are prepared with and reverse gradients copper vacancies a two-step, diffusion-assisted spray pyrolysis process. Decreasing Cu/Bi ratio introduces Cu that increase carrier (hole) concentration lowers Fermi level, as evidenced by shift flat band toward more positive potentials. Thus, leads an internal electric...
We report for the first time preparation of highly stable graphene (GE)-based nanofluids with ionic liquid as base fluids (ionic liquid-based (Ionanofluids)) without any surfactant and subsequent investigations on their thermal conductivity, specific heat, viscosity. The microstructure GE MWCNTs are observed by transmission electron microscope. Thermal conductivity (TC), viscosity these Ionanofluids were measured different weight fractions at varying temperatures, demonstrating that exhibit...
Locally crystallized PCN is prone to form *OCCHO groups rather than *CH 2 O groups, regulating the endoergic C–C coupling step a simultaneous exoergic reaction and changing pathway towards CH 3 CHO (selectivity of 98.3%) instead HCHO.
Dense, homogeneous CuBi<sub>2</sub>O<sub>4</sub> thin films are prepared, for the first time, by spray pyrolysis.
Cu doped NiO (Cu:NiO) back contact layers are inserted between FTO substrates and CuBi<sub>2</sub>O<sub>4</sub> thin films to improve the performance of photocathodes.
Photocatalytic conversion of CO2 is great interest but it often suffers sluggish oxidation half reaction and undesired by-products. Here, we report for the first simultaneous co-photocatalytic reduction ethanol towards one identical value-added CH3 CHO product on a rubidium potassium co-modified carbon nitride (CN-KRb). The CN-KRb offers record photocatalytic activity 1212.3 μmol h-1 g-1 with high selectivity 93.3 % production, outperforming all state-of-art photocatalysts. It disclosed that...
Ni-based materials have been widely investigated as methanol oxidation reaction (MOR) catalysts. The formation of NiOOH and its reduction to Ni(OH)2 are generally regarded essential steps for oxidation. However, in such an indirect route, the efficiency proton coupled electron transfer is fundamentally limited by rate transition from back forth. Herein we demonstrate a direct MOR pathway on MoO3/Ni(OH)2 without mediator. exhibits benchmark electrocatalytic current density 1000 mA cm-2 at...
Solar water evaporation is a promising strategy to extract freshwater from seawater or wastewater directly by solar energy. Employing cheap substrates capable of reducing light reflection prepare photothermal layers helps develop high-efficiency and lost-cost systems. Herein, pyramid polyurethane sponge (PPUS), black sound-absorbing material, was first explored as the substrate for loading graphene (GE) novel layer. The porous microstructure, wettability, optical property obtained GE/PPUS...
Abstract CoMo 2 S 4 2D nanosheets are constructed by a hard template‐limited domain strategy, meanwhile the hydrogen evolution reaction (HER) properties and function of Co in systematically investigated. Electrochemical tests show that possesses high HER performance with an overpotential 55 150 mV at 10 100 mA cm −2 , respectively, outperforming Pt/C (20%) state art Mo–S, Co–S, Co–Mo–S‐based materials. An in‐depth mechanism study reveals main active site is Mo rather than Co, whereas plays...
The edge-activation of the polymeric carbon nitride matrix by hydroxyethyl groups results in enhanced CO<sub>2</sub> absorption capacity and decrease activation energy barrier.
In this article, a short-time hydrothermal method is developed to prepare CuBi2O4 nanocolumn arrays. By using Bi(NO3)3·5H2O in acetic acid and Cu(NO3)2·3H2O ethanol as precursor solutions, tetragonal with good visible light absorption can be fabricated within 0.5 h at 120 °C. Tetragonal structured formed after 15 min treatment, however it possesses poor low photocatalytic activity. Extending the treatment duration results significant improvement invisible of CuBi2O4. The obtained through...
Bi 2 O 3 nano-scaffold supported ultrathin CuBi 4 exhibits improved light absorption and charge separation, enabling self-powered photodetection of broadband with high responsivity (75 mA W −1 ) response speed (0.18/0.19 ms).
Abstract Photocatalytic conversion of CO 2 is great interest but it often suffers sluggish oxidation half reaction and undesired by‐products. Here, we report for the first simultaneous co‐photocatalytic reduction ethanol towards one identical value‐added CH 3 CHO product on a rubidium potassium co‐modified carbon nitride (CN‐KRb). The CN‐KRb offers record photocatalytic activity 1212.3 μmol h −1 g with high selectivity 93.3 % production, outperforming all state‐of‐art photocatalysts. It...
In this study we demonstrate that the PEC performance of BiVO4 photoanodes can be improved by deposition a MnPi catalyst layer. We investigated electronic structure layer using in situ soft X-ray absorption spectroscopy (XAS) at Mn L-edge upon varying applied potentials and illumination conditions. Using linear combination method, information on different species oxidation states was obtained. found charge transfer MnPi/electrolyte interface is affected band bending related to built-in...
p–n transition potential ( V ) as a new signal for photoelectrochemical (PEC) sensors. based flexible wearable PEC pH sensor shows strong anti-interference ability. A benchmark signal-to-noise ratio of 10 6 was achieved during practical exercise.
Abstract Among all the renewable energy sources, solar irradiation has greatest potential to meet world's future demands. The solar‐driven generation of water steam emerged as a promising route for utilization in fields global cycle, seawater desalination, high‐temperature sterilization, and wastewater treatment. A typical thermal converting process involves heat harvesting by absorber stimulating evaporation via sensible latent heat. In this review, novel direct systems based on black...